{"id":6650,"date":"2023-11-30T02:19:12","date_gmt":"2023-11-30T02:19:12","guid":{"rendered":"http:\/\/boyanmfg.com\/?p=6650"},"modified":"2026-03-16T05:50:26","modified_gmt":"2026-03-16T05:50:26","slug":"injection-molding-tolerances","status":"publish","type":"post","link":"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/","title":{"rendered":"Toler\u00e2ncias de Moldagem por Inje\u00e7\u00e3o: DIN 16901, ISO 20457 e as Nossas Diretrizes Pr\u00e1ticas"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6650\" class=\"elementor elementor-6650\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9d39f3a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d39f3a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4449719\" data-id=\"4449719\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c77127e elementor-widget elementor-widget-shortcode\" data-id=\"c77127e\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_78 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle translation-block\" style=\"cursor:pointer\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar o \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"><\/path><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Why_are_Injection_Molding_Tolerances_Important\">Porque \u00e9 que as toler\u00e2ncias de moldagem por inje\u00e7\u00e3o s\u00e3o importantes?<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Sources_of_Dimensional_Deviations_in_Injection_Molded_Parts\">Fontes de desvios dimensionais em pe\u00e7as moldadas por inje\u00e7\u00e3o<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Molding_Process_Factors\">Factores do processo de moldagem<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Mold_Factors\">Factores de bolor<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Understanding_the_DIN_16901_Standard\">Compreender a norma DIN 16901<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Why_We_Need_to_Understand_DIN_16901\">Porque Precisamos de Compreender a DIN 16901<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Dimension_Classification\">Classifica\u00e7\u00e3o de dimens\u00f5es<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Tolerance_groups\">Grupos de toler\u00e2ncia<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Access_to_DIN_16901\">Acesso \u00e0 DIN 16901<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#ISO_20457_The_Modern_Global_Standard_for_Plastic_Part_Tolerances\">ISO 20457: A Norma Global Moderna para Toler\u00e2ncias de Pe\u00e7as Pl\u00e1sticas<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#What_ISO_20457_Improves_Compared_to_DIN_16901\">O que a ISO 20457 Melhora em Compara\u00e7\u00e3o com a DIN 16901<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#3_DIN%E2%80%AF16901_ignores_the_fact_that_%E2%80%9Cthe_farther_from_the_datum_the_larger_the_error%E2%80%9D\">3. A DIN\u202f16901 ignora o facto de que \u201cquanto mais longe do datum, maior \u00e9 o erro\u201d<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Boyans_Simplified_Injection_Molding_Tolerance_Chart\">Gr\u00e1fico de Toler\u00e2ncias Simplificado da Boyan para Moldagem por Inje\u00e7\u00e3o<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Understanding_Injection_Molding_Tolerance_Components\">Compreens\u00e3o dos Componentes de Toler\u00e2ncia na Moldagem por Inje\u00e7\u00e3o<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Norminal_dimension_Upper_and_Lower_Tolerances\">Dimens\u00e3o nominal, Toler\u00e2ncias Superior e Inferior<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Choosing_Dimension_Range\">Sele\u00e7\u00e3o da gama de dimens\u00f5es<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Determining_Nominal_Dimensions\">Determina\u00e7\u00e3o das dimens\u00f5es nominais<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Considering_Practical_Application\">Considerar a aplica\u00e7\u00e3o pr\u00e1tica<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Coordination_and_Verification\">Coordena\u00e7\u00e3o e verifica\u00e7\u00e3o<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Let_Boyan_Help_You_Select_the_Right_Injection_Molding_Tolerances\">Deixe a Boyan Ajud\u00e1-lo a Selecionar as Toler\u00e2ncias Corretas para Moldagem por Inje\u00e7\u00e3o<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Focusing_on_Key_Dimensions\">Centrar-se nas dimens\u00f5es-chave<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Handling_Less_Important_Dimensions\">Manuseamento de dimens\u00f5es menos importantes<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Information_and_Materials_Required_for_Effective_Tolerance_Determination\">Informa\u00e7\u00f5es e materiais necess\u00e1rios para a determina\u00e7\u00e3o efectiva da toler\u00e2ncia<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#FAQ\">FAQ<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#Appendix_Common_Standards_for_Injection_Molded_Parts\">Ap\u00eandice: Normas Comuns para Pe\u00e7as Moldadas por Inje\u00e7\u00e3o<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/#We_are_experts_in_plastic_injection_molding_Contact_us_now_and_get_a_quick_quote\">Somos especialistas em moldagem por inje\u00e7\u00e3o de pl\u00e1stico. Contacte-nos agora e obtenha um or\u00e7amento r\u00e1pido!<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8182a8b elementor-widget elementor-widget-heading\" data-id=\"8182a8b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Why_are_Injection_Molding_Tolerances_Important\"><\/span>Porque \u00e9 que as toler\u00e2ncias de moldagem por inje\u00e7\u00e3o s\u00e3o importantes?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f049352 elementor-widget elementor-widget-text-editor\" data-id=\"f049352\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">No processo de produ\u00e7\u00e3o de pe\u00e7as moldadas por inje\u00e7\u00e3o, as varia\u00e7\u00f5es nas dimens\u00f5es s\u00e3o inevit\u00e1veis devido \u00e0s influ\u00eancias do molde, da m\u00e1quina de moldagem por inje\u00e7\u00e3o, dos materiais e dos factores ambientais. Por conseguinte, \u00e9 crucial estabelecer toler\u00e2ncias razo\u00e1veis para as dimens\u00f5es do produto e garantir que estas s\u00e3o respeitadas. As toler\u00e2ncias adequadas podem:<\/p><ul><li>Assegurar que as pe\u00e7as funcionam corretamente, especialmente quando \u00e9 necess\u00e1rio encaixar v\u00e1rios componentes;<\/li><li>Garantir a consist\u00eancia e a fiabilidade do produto;<\/li><li>Refletir as capacidades de fabrico e de gest\u00e3o da f\u00e1brica;<\/li><li>Melhorar a imagem da empresa e a satisfa\u00e7\u00e3o dos clientes.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-cc0b20d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cc0b20d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a896a92\" data-id=\"a896a92\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d862877 elementor-widget elementor-widget-image\" data-id=\"d862877\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/boyanmfg.com\/product-category\/plastic-injection-molding\/precision-injection-molding\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector-300x300.jpg\" class=\"attachment-medium size-medium wp-image-1395\" alt=\"conetor de pinos de pl\u00e1stico superior e inferior\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector-300x300.jpg 300w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector-100x100.jpg 100w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector-600x600.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector-150x150.jpg 150w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/top-and-bottom-plastic-pin-connector.jpg 750w\" sizes=\"(max-width: 300px) 100vw, 300px\">\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3be6c11\" data-id=\"3be6c11\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-80114e1 elementor-widget elementor-widget-image\" data-id=\"80114e1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/boyanmfg.com\/shop\/plastic-lens-retainer-for-smartphone-cameras\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens-300x300.jpg\" class=\"attachment-medium size-medium wp-image-3408\" alt=\"retentor de pl\u00e1stico para a lente do telem\u00f3vel\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens-300x300.jpg 300w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens-100x100.jpg 100w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens-600x600.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens-150x150.jpg 150w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2021\/12\/plastic-retainer-for-phone-lens.jpg 750w\" sizes=\"(max-width: 300px) 100vw, 300px\">\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-17a1375 elementor-widget elementor-widget-text-editor\" data-id=\"17a1375\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">O estabelecimento de valores de toler\u00e2ncia adequados \u00e9 essencial. As toler\u00e2ncias demasiado grandes ou demasiado pequenas podem levar a problemas na utiliza\u00e7\u00e3o do produto e s\u00e3o indicativas de falta de conhecimentos sobre moldagem por inje\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94da94f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"94da94f\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2998e86 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2998e86\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0671a7c\" data-id=\"0671a7c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-676813c elementor-widget elementor-widget-heading\" data-id=\"676813c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Sources_of_Dimensional_Deviations_in_Injection_Molded_Parts\"><\/span>Fontes de desvios dimensionais em pe\u00e7as moldadas por inje\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2c19b0 elementor-widget elementor-widget-text-editor\" data-id=\"b2c19b0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Os desvios dimensionais em pe\u00e7as moldadas por inje\u00e7\u00e3o t\u00eam origem principalmente em duas categorias: <strong>factores do processo de moldagem<\/strong> e <strong>factores do molde.<\/strong> Segue-se uma explica\u00e7\u00e3o detalhada e uma expans\u00e3o destes factores:<\/p><h3><span class=\"ez-toc-section\" id=\"Molding_Process_Factors\"><\/span>Factores do processo de moldagem<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><strong>Inconsist\u00eancia nos materiais pl\u00e1sticos<\/strong>: Diferentes pl\u00e1sticos apresentam carater\u00edsticas variadas de fluxo, arrefecimento e contra\u00e7\u00e3o durante a moldagem. A falta de consist\u00eancia dos materiais pode levar a inconsist\u00eancias dimensionais no mesmo lote ou em lotes diferentes.<\/li><li><strong>Precis\u00e3o de controlo das m\u00e1quinas de moldagem por inje\u00e7\u00e3o<\/strong>: A precis\u00e3o do controlo da temperatura e da press\u00e3o durante o processo de moldagem por inje\u00e7\u00e3o afecta diretamente a estabilidade dimensional dos produtos. As flutua\u00e7\u00f5es de temperatura e press\u00e3o podem levar a dimens\u00f5es finais inconsistentes.<\/li><li><strong>Temperatura do molde<\/strong>: O controlo da temperatura do molde \u00e9 crucial para a qualidade da moldagem. Uma temperatura irregular ou um controlo impreciso pode resultar num arrefecimento desigual das pe\u00e7as, afectando assim a precis\u00e3o dimensional.<\/li><li><strong>Deforma\u00e7\u00e3o el\u00e1stica do molde<\/strong>: Sob press\u00e3o de inje\u00e7\u00e3o, o molde pode sofrer uma ligeira deforma\u00e7\u00e3o el\u00e1stica, afectando indiretamente as dimens\u00f5es e a forma das pe\u00e7as.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31cd257 elementor-widget elementor-widget-image\" data-id=\"31cd257\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/elementor\/thumbs\/all-electric-molding-machine-r8r87a9uev9yqllcgtmfun0dtsckrutavnvbpyzytk.jpg\" title=\"m\u00e1quina de moldagem totalmente el\u00e9ctrica\" alt=\"m\u00e1quina de moldagem totalmente el\u00e9ctrica\" loading=\"lazy\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5450b60 elementor-widget elementor-widget-text-editor\" data-id=\"5450b60\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Mold_Factors\"><\/span>Factores de bolor<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li><strong>Precis\u00e3o de fabrico das dimens\u00f5es do molde<\/strong>: A precis\u00e3o com que o molde \u00e9 fabricado \u00e9 um fator chave na determina\u00e7\u00e3o da precis\u00e3o dimensional do produto final. Pequenos desvios no molde podem ser ampliados durante o processo de moldagem.<\/li><li><strong>Precis\u00e3o posicional de componentes de moldes m\u00f3veis<\/strong>: Para moldes com componentes m\u00f3veis, tais como corredi\u00e7as e pinos ejectores, a precis\u00e3o do posicionamento repetitivo destas pe\u00e7as tem um impacto inevit\u00e1vel na consist\u00eancia das dimens\u00f5es do produto. Mais pormenores sobre este assunto ser\u00e3o explicados posteriormente.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60f1dc7 elementor-widget elementor-widget-image\" data-id=\"60f1dc7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"169\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/injection-mold-lego-part-300x169.jpg\" class=\"attachment-medium size-medium wp-image-4104\" alt=\"molde de inje\u00e7\u00e3o pe\u00e7a lego vista geral\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/injection-mold-lego-part-300x169.jpg 300w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/injection-mold-lego-part-600x338.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/injection-mold-lego-part-768x432.jpg 768w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/injection-mold-lego-part.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d527646 elementor-widget elementor-widget-text-editor\" data-id=\"d527646\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Em conclus\u00e3o, a quest\u00e3o dos desvios dimensionais em pe\u00e7as moldadas por inje\u00e7\u00e3o \u00e9 complexa e influenciada por v\u00e1rios factores, incluindo as propriedades do material, o desempenho do equipamento e a qualidade do molde. Na produ\u00e7\u00e3o real, o controlo preciso dos par\u00e2metros do processo de moldagem, a utiliza\u00e7\u00e3o de moldes de elevada precis\u00e3o e a otimiza\u00e7\u00e3o da qualidade do material podem reduzir eficazmente os desvios dimensionais, garantindo assim a qualidade e o desempenho do produto.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b0c32d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6b0c32d\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bf5fdf8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bf5fdf8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a71b979\" data-id=\"a71b979\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e79a2af elementor-widget elementor-widget-heading\" data-id=\"e79a2af\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Understanding_the_DIN_16901_Standard\"><\/span>Compreender a norma DIN 16901<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a38166d elementor-widget elementor-widget-heading\" data-id=\"a38166d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Why_We_Need_to_Understand_DIN_16901\"><\/span>Porque Precisamos de Compreender a DIN 16901<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ed8051 elementor-widget elementor-widget-text-editor\" data-id=\"1ed8051\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Antes de discutir a DIN 16901, \u00e9 importante esclarecer por que esta norma merece aten\u00e7\u00e3o especial. As toler\u00e2ncias para pe\u00e7as moldadas por inje\u00e7\u00e3o t\u00eam caracter\u00edsticas muito diferentes das pe\u00e7as usinadas por CNC, porque a moldagem de pl\u00e1stico \u00e9 fortemente influenciada por fatores como <strong>retra\u00e7\u00e3o do material<\/strong>, <strong>estrutura do molde<\/strong> e <strong>varia\u00e7\u00e3o do processo<\/strong>.<\/p><p class=\"translation-block\">Entre os <a href=\"#standards\">v\u00e1rios padr\u00f5es (consulte o final desta p\u00e1gina)<\/a> utilizados para toler\u00e2ncias de pe\u00e7as injetadas, o DIN 16901 \u00e9 um dos mais representativos e amplamente referenciados. Portanto, adquirir um conhecimento s\u00f3lido do DIN 16901 fornece uma base \u00fatil para compreender os princ\u00edpios gerais e a l\u00f3gica pr\u00e1tica por tr\u00e1s das toler\u00e2ncias de moldagem por inje\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e8ddff elementor-widget elementor-widget-heading\" data-id=\"4e8ddff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Dimension_Classification\"><\/span> Classifica\u00e7\u00e3o de dimens\u00f5es<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2747830 elementor-widget elementor-widget-text-editor\" data-id=\"2747830\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Na norma DIN 16901, as toler\u00e2ncias s\u00e3o classificadas em dois tipos: <strong>Tipo A<\/strong> e <strong>Tipo B<\/strong>, especificamente concebidas para lidar com as carater\u00edsticas das pe\u00e7as moldadas por inje\u00e7\u00e3o. Para melhor compreender este conceito, vamos explorar o processo de fecho de um molde de inje\u00e7\u00e3o, ilustrado abaixo:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-caec31d elementor-widget elementor-widget-image\" data-id=\"caec31d\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/mold-closing-part-forming.gif\" class=\"attachment-large size-large wp-image-8160\" alt=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25bcd80 elementor-widget elementor-widget-text-editor\" data-id=\"25bcd80\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Observamos que algumas dimens\u00f5es nas pe\u00e7as pl\u00e1sticas (<strong>Tipo B<\/strong>) s\u00e3o <strong>apenas determinadas pelas carater\u00edsticas nas partes superior e inferior do molde<\/strong>. Estas dimens\u00f5es tendem a mudar muito pouco durante o processo de moldagem por inje\u00e7\u00e3o.<\/p><p class=\"translation-block\">Em contrapartida, outras dimens\u00f5es (<strong>Tipo A<\/strong>), como a espessura das paredes laterais e do fundo, s\u00e3o determinadas ap\u00f3s o fecho dos moldes superior e inferior. Como pode haver algum desalinhamento cada vez que os moldes s\u00e3o fechados, isso pode levar a certos desvios. Por conseguinte, \u00e9 permitida uma toler\u00e2ncia maior para estas dimens\u00f5es.<\/p><p class=\"translation-block\">As dimens\u00f5es do tipo A tamb\u00e9m incluem dimens\u00f5es formadas com a participa\u00e7\u00e3o de pe\u00e7as m\u00f3veis, como corredi\u00e7as e elevadores.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dee6709 elementor-widget elementor-widget-image\" data-id=\"dee6709\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"375\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/misalignment-upper-lower-mold.gif\" class=\"attachment-large size-large wp-image-8161\" alt=\"desalinhamento do molde superior inferior para compreender a toler\u00e2ncia de moldagem\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d40f63 elementor-widget elementor-widget-image\" data-id=\"7d40f63\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"338\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TYPE-A-B-diemsnions-tolerance.jpg\" class=\"attachment-large size-large wp-image-8162\" alt=\"Dimens\u00f5es do tipo A e do tipo B para toler\u00e2ncias de moldagem por inje\u00e7\u00e3o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TYPE-A-B-diemsnions-tolerance.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TYPE-A-B-diemsnions-tolerance-300x169.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a08444 elementor-widget elementor-widget-text-editor\" data-id=\"0a08444\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Por outras palavras, as dimens\u00f5es do <strong>Tipo B<\/strong> n\u00e3o s\u00e3o afectadas por componentes m\u00f3veis dentro do molde. De acordo com a <strong>Figura 1<\/strong> abaixo, as dimens\u00f5es do Tipo B tamb\u00e9m s\u00e3o conhecidas como <strong>dimens\u00f5es relacionadas ao molde<\/strong> na norma DIN 16901, indicando essencialmente a mesma id\u00e9ia.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03025d7 elementor-widget elementor-widget-image\" data-id=\"03025d7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"451\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-mold-related-dimensions.jpg\" class=\"attachment-large size-large wp-image-6663\" alt=\"toler\u00e2ncia de moldagem dimens\u00f5es relacionadas com o molde\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-mold-related-dimensions.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-mold-related-dimensions-300x226.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Dimens\u00f5es do tipo B<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f678e5f elementor-widget elementor-widget-menu-anchor\" data-id=\"f678e5f\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"type_A_dimensions\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44f0591 elementor-widget elementor-widget-text-editor\" data-id=\"44f0591\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">As dimens\u00f5es do <strong>Tipo A<\/strong>, no entanto, como mostrado na <strong>figura 2<\/strong> abaixo, s\u00e3o influenciadas por essas partes m\u00f3veis, incluindo as posi\u00e7\u00f5es relativas do molde superior, do molde inferior, dos deslizadores e dos elevadores, o que pode resultar em pequenos desvios dimensionais. Da mesma forma, as dimens\u00f5es do Tipo A s\u00e3o referidas como <strong>dimens\u00f5es n\u00e3o relacionadas ao molde<\/strong> na DIN 16901.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5a7071 elementor-widget elementor-widget-image\" data-id=\"f5a7071\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"487\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-non-mold-related-dimensions.jpg\" class=\"attachment-large size-large wp-image-6664\" alt=\"toler\u00e2ncia de moldagem por inje\u00e7\u00e3o, dimens\u00f5es n\u00e3o relacionadas com o molde, Tipo A\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-non-mold-related-dimensions.jpg 650w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-non-mold-related-dimensions-600x450.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/molding-tolerance-non-mold-related-dimensions-300x225.jpg 300w\" sizes=\"(max-width: 650px) 100vw, 650px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Dimens\u00f5es do tipo A<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-376cc03 elementor-widget elementor-widget-text-editor\" data-id=\"376cc03\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Como mencionado acima, as toler\u00e2ncias para as dimens\u00f5es do <strong>Tipo A<\/strong> s\u00e3o geralmente maiores do que as do <strong>Tipo B<\/strong>, reflectindo as realidades da moldagem por inje\u00e7\u00e3o. Os profissionais experientes na moldagem por inje\u00e7\u00e3o ou no projeto de moldes normalmente acham f\u00e1cil distinguir entre as dimens\u00f5es do Tipo A e do Tipo B.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8a2008 elementor-widget elementor-widget-image\" data-id=\"a8a2008\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"352\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-tolerances-type-A-and-B.jpg\" class=\"attachment-large size-large wp-image-6674\" alt=\"Toler\u00e2ncias DIN 16901 para as dimens\u00f5es do tipo A e do tipo B\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-tolerances-type-A-and-B.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-tolerances-type-A-and-B-300x176.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Toler\u00e2ncia para o tipo A &gt; tipo B<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83638e0 elementor-widget elementor-widget-heading\" data-id=\"83638e0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Tolerance_groups\"><\/span>Grupos de toler\u00e2ncia<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5980c6e elementor-widget elementor-widget-text-editor\" data-id=\"5980c6e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"82\" data-end=\"427\" class=\"translation-block\">Na DIN 16901, existem <strong data-start=\"299\" data-end=\"323\">seis grupos de toler\u00e2ncia<\/strong>: 110, 120, 130, 140, 150 e 160, sendo <strong data-start=\"364\" data-end=\"391\">110 o mais rigoroso<\/strong> e <strong data-start=\"396\" data-end=\"426\">160 o mais permissivo<\/strong>.<\/p><p data-start=\"461\" data-end=\"563\" class=\"translation-block\">Para cada material, existem tr\u00eas n\u00edveis poss\u00edveis de toler\u00e2ncia. Estes n\u00edveis s\u00e3o categorizados da seguinte forma:<\/p><ul><li data-start=\"567\" data-end=\"676\"><strong data-start=\"567\" data-end=\"589\">Toler\u00e2ncia geral:<\/strong> Esta \u00e9 a toler\u00e2ncia padr\u00e3o para dimens\u00f5es onde nenhuma toler\u00e2ncia espec\u00edfica \u00e9 indicada.<\/li><li data-start=\"679\" data-end=\"885\"><strong data-start=\"679\" data-end=\"712\">Toler\u00e2ncias Tipo 1 e Tipo 2:<\/strong> Estas toler\u00e2ncias aplicam-se quando s\u00e3o especificados desvios para uma dimens\u00e3o particular. Pode escolher entre os n\u00edveis de toler\u00e2ncia correspondentes com base no material e no tamanho da pe\u00e7a.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09ed799 elementor-widget elementor-widget-image\" data-id=\"09ed799\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"288\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-material-to-tolerance.jpg\" class=\"attachment-large size-large wp-image-6680\" alt=\"DIN 16901 correla\u00e7\u00e3o entre material e grupo de toler\u00e2ncia\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-material-to-tolerance.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/DIN-16901-material-to-tolerance-300x144.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-754ea6c elementor-widget elementor-widget-text-editor\" data-id=\"754ea6c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4 data-start=\"887\" data-end=\"942\">Exemplo de Grupos de Toler\u00e2ncia para Diferentes Materiais<\/h4><ul><li data-start=\"0\" data-end=\"63\">Para <strong data-start=\"4\" data-end=\"12\">PMMA<\/strong>, os grupos de toler\u00e2ncia s\u00e3o <strong data-start=\"39\" data-end=\"60\">130, 120 e 110<\/strong>.<\/li><li data-start=\"65\" data-end=\"193\">Para <strong data-start=\"69\" data-end=\"93\">POM (sem enchimento)<\/strong>, quando o <strong data-start=\"104\" data-end=\"142\">comprimento de moldagem inferior a 150 mm<\/strong>, os grupos de toler\u00e2ncia s\u00e3o <strong data-start=\"169\" data-end=\"190\">130, 120 e 110<\/strong>.<\/li><li data-start=\"195\" data-end=\"324\">Para <strong data-start=\"199\" data-end=\"223\">POM (sem enchimento)<\/strong>, quando o <strong data-start=\"234\" data-end=\"273\">comprimento de moldagem igual ou superior a 150 mm<\/strong>, os grupos de toler\u00e2ncia s\u00e3o <strong data-start=\"300\" data-end=\"321\">150, 140 e 130<\/strong>.<\/li><li data-start=\"326\" data-end=\"400\">Para <strong data-start=\"330\" data-end=\"351\">POM (com enchimento)<\/strong>, os grupos de toler\u00e2ncia s\u00e3o <strong data-start=\"378\" data-end=\"399\">140, 130 e 120<\/strong>.<\/li><\/ul><p class=\"translation-block\">A partir destes exemplos, podemos ver v\u00e1rios pontos importantes:<\/p><ul><li data-start=\"1450\" data-end=\"1569\"><strong data-start=\"1450\" data-end=\"1509\">Diferentes pl\u00e1sticos t\u00eam diferentes estabilidades dimensionais<\/strong>: Alguns pl\u00e1sticos s\u00e3o mais dif\u00edceis de controlar com precis\u00e3o do que outros.<\/li><li data-start=\"1572\" data-end=\"1706\"><strong data-start=\"1572\" data-end=\"1633\">A presen\u00e7a de enchimentos <\/strong>(como fibra de vidro, talco, carbonato de c\u00e1lcio)<strong data-start=\"1572\" data-end=\"1633\"> pode melhorar a estabilidade dimensional<\/strong>: Os materiais com cargas s\u00e3o geralmente mais est\u00e1veis e mais f\u00e1ceis de controlar.<\/li><li data-start=\"1707\" data-end=\"1879\"><p data-start=\"1709\" data-end=\"1879\" class=\"translation-block\"><strong data-start=\"1709\" data-end=\"1751\">Pe\u00e7as maiores exigem toler\u00e2ncias mais amplas<\/strong>: \u00c0 medida que as dimens\u00f5es base da pe\u00e7a aumentam, a faixa de toler\u00e2ncia geralmente fica maior, tornando o controlo preciso mais dif\u00edcil.<\/p><\/li><\/ul><p data-start=\"1881\" data-end=\"2040\" data-is-last-node=\"\" data-is-only-node=\"\" class=\"translation-block\">Ao compreender os grupos de toler\u00e2ncia, os fabricantes podem selecionar os n\u00edveis de toler\u00e2ncia apropriados com base no material, no tamanho da pe\u00e7a e no n\u00edvel de precis\u00e3o necess\u00e1rio.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62897fa elementor-widget elementor-widget-text-editor\" data-id=\"62897fa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Em resumo, a norma DIN 16901 fornece orienta\u00e7\u00f5es vitais sobre toler\u00e2ncias dimensionais para a ind\u00fastria de moldagem por inje\u00e7\u00e3o. Define diferentes n\u00edveis de toler\u00e2ncia com base no grau de impacto da dimens\u00e3o e no tipo de material utilizado, mas para toler\u00e2ncias de forma e de posi\u00e7\u00e3o, devem ser consultadas outras normas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5dde3a1 elementor-widget elementor-widget-text-editor\" data-id=\"5dde3a1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Access_to_DIN_16901\"><\/span>Acesso \u00e0 DIN 16901<span class=\"ez-toc-section-end\"><\/span><\/h3><p class=\"translation-block\">O conte\u00fado detalhado da norma DIN 16901 n\u00e3o est\u00e1 dispon\u00edvel publicamente. Tal como a maioria das normas de engenharia, deve ser adquirida, pelo que n\u00e3o encontrar\u00e1 o documento completo online gratuitamente. Em vez disso, fornecemos os nossos pr\u00f3prios valores de toler\u00e2ncia desenvolvidos pela empresa, que s\u00e3o descritos na sec\u00e7\u00e3o abaixo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce0e86c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"ce0e86c\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50739bd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50739bd\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f2ab0b8\" data-id=\"f2ab0b8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4d3cb53 elementor-widget elementor-widget-heading\" data-id=\"4d3cb53\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"ISO_20457_The_Modern_Global_Standard_for_Plastic_Part_Tolerances\"><\/span>ISO 20457: A Norma Global Moderna para Toler\u00e2ncias de Pe\u00e7as Pl\u00e1sticas<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a23db78 elementor-widget elementor-widget-text-editor\" data-id=\"a23db78\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">A DIN\u202f16901 remonta ao in\u00edcio da d\u00e9cada de 1980 e, embora ainda seja amplamente referenciada, nunca foi atualizada porque normas mais recentes e completas acabaram por substituir o seu papel. A ISO\u202f20457:2018 \u00e9 agora considerada a <strong>sucessora moderna e internacional<\/strong> da DIN\u202f16901. Fornece um sistema de toler\u00e2ncias mais claro, mais previs\u00edvel e mais consistente globalmente para pe\u00e7as pl\u00e1sticas moldadas.<\/p><p class=\"translation-block\">A ISO\u202f20457 introduz <strong>nove graus de toler\u00e2ncia (TG1\u2013TG9)<\/strong>, em compara\u00e7\u00e3o com os seis grupos de toler\u00e2ncia (110\u2013160) da DIN\u202f16901.<\/p><ul><li><strong>TG1<\/strong> \u00e9 o grau mais apertado.<\/li><li><strong>TG9<\/strong> \u00e9 a mais ampla. Na produ\u00e7\u00e3o real, apenas um subconjunto destas classes \u00e9 normalmente utilizado.<\/li><\/ul><p class=\"translation-block\">A norma tamb\u00e9m formaliza a distin\u00e7\u00e3o entre dois tipos de dimens\u00f5es:<\/p><ul><li><strong>W (dimens\u00f5es espec\u00edficas da ferramenta)<\/strong> \u2014 geralmente equivalente \u00e0s dimens\u00f5es do Tipo B na DIN\u202f16901.<\/li><li><strong>NW (dimens\u00f5es n\u00e3o espec\u00edficas da ferramenta)<\/strong> \u2014 geralmente equivalente \u00e0s dimens\u00f5es do Tipo A na DIN\u202f16901.<\/li><\/ul><p class=\"translation-block\">Isto torna o sistema mais f\u00e1cil de compreender para quem est\u00e1 familiarizado com a norma DIN mais antiga.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07a277d elementor-widget elementor-widget-heading\" data-id=\"07a277d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"What_ISO_20457_Improves_Compared_to_DIN_16901\"><\/span>O que a ISO 20457 Melhora em Compara\u00e7\u00e3o com a DIN 16901<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71cd5c7 elementor-widget elementor-widget-text-editor\" data-id=\"71cd5c7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>1. A DIN\u202f16901 definia apenas toler\u00e2ncias dimensionais, n\u00e3o toler\u00e2ncias geom\u00e9tricas<\/h4><p class=\"translation-block\">A ISO\u202f20457 preenche esta lacuna ao acrescentar:<\/p><ul><li>toler\u00e2ncias de posi\u00e7\u00e3o (Tabela 9)<\/li><li>toler\u00e2ncias de perfil superficial (Tabela 10)<\/li><li>utiliza\u00e7\u00e3o obrigat\u00f3ria da ISO 1101, ISO 5458, ISO 5459<\/li><li>toler\u00e2ncias de perfil para superf\u00edcies de forma livre<\/li><\/ul><p class=\"translation-block\">Isto eleva a toler\u00e2ncia geom\u00e9trica de pe\u00e7as pl\u00e1sticas ao mesmo n\u00edvel de completude que as normas para pe\u00e7as met\u00e1licas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98cab72 elementor-widget elementor-widget-text-editor\" data-id=\"98cab72\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>2. O sistema de toler\u00e2ncias da DIN\u202f16901 \u00e9 demasiado simplista<\/h4><p class=\"translation-block\">A DIN\u202f16901 atribui grupos de toler\u00e2ncia com base apenas no <strong>tipo de material<\/strong> e na <strong>gama de dimens\u00f5es<\/strong>, ignorando fatores-chave que influenciam a precis\u00e3o da moldagem por inje\u00e7\u00e3o. Isto resulta frequentemente em:<\/p><ul><li>toler\u00e2ncias demasiado amplas<\/li><li>toler\u00e2ncias n\u00e3o exequ\u00edveis<\/li><li>desacordos entre clientes e fornecedores<\/li><\/ul><p class=\"translation-block\">Enquanto a ISO\u202f20457 resolve isto introduzindo um <strong>sistema de pontua\u00e7\u00e3o de cinco fatores (P1\u2013P5)<\/strong>:<\/p><ol><li>processo de moldagem (Tabela 4)<\/li><li>rigidez do material (Tabela 5)<\/li><li>taxa de retra\u00e7\u00e3o (Tabela 6)<\/li><li>anisotropia de contra\u00e7\u00e3o (Tabela 7)<\/li><li>esfor\u00e7o de produ\u00e7\u00e3o (S\u00e9rie 1\u20134, Tabela 8)<\/li><\/ol><p class=\"translation-block\">A pontua\u00e7\u00e3o total determina o <strong>grau de toler\u00e2ncia TG<\/strong>. As toler\u00e2ncias tornam-se quantific\u00e1veis, previs\u00edveis e mais f\u00e1ceis de negociar.<\/p><div>\u00a0<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5705e72 elementor-widget elementor-widget-text-editor\" data-id=\"5705e72\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"3_DIN%E2%80%AF16901_ignores_the_fact_that_%E2%80%9Cthe_farther_from_the_datum_the_larger_the_error%E2%80%9D\"><\/span>3. A DIN\u202f16901 ignora o facto de que \u201cquanto mais longe do datum, maior \u00e9 o erro\u201d<span class=\"ez-toc-section-end\"><\/span><\/h3><p class=\"translation-block\">As pe\u00e7as pl\u00e1sticas acumulam erros devido \u00e0 retra\u00e7\u00e3o, empenamento e arrefecimento irregular. Estes efeitos aumentam com a dist\u00e2ncia ao datum, mas a DIN\u202f16901 n\u00e3o tem isso em conta.<\/p><p class=\"translation-block\"><strong>Como a ISO\u202f20457 resolve isto:<\/strong> Introduz <strong>Dp<\/strong>, a dist\u00e2ncia de uma caracter\u00edstica \u00e0 origem do datum:<\/p><ul><li>toler\u00e2ncias de posi\u00e7\u00e3o dependem de Dp (Tabela 9)<\/li><li>toler\u00e2ncias de perfil dependem de Dp (Tabela 10)<\/li><\/ul><p class=\"translation-block\">Isto alinha os valores de toler\u00e2ncia com o comportamento f\u00edsico real<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c046d32 elementor-widget elementor-widget-text-editor\" data-id=\"c046d32\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>4. A DIN\u202f16901 fornece toler\u00e2ncias, mas n\u00e3o regras de aceita\u00e7\u00e3o<\/h4><p class=\"translation-block\">A DIN\u202f16901 oferece tabelas de toler\u00e2ncias, mas n\u00e3o define m\u00e9todos de inspe\u00e7\u00e3o ou crit\u00e9rios de aceita\u00e7\u00e3o.<\/p><p class=\"translation-block\">A ISO\u202f20457 adiciona <strong>ABF \u2014 Condi\u00e7\u00f5es de Aceita\u00e7\u00e3o para a Produ\u00e7\u00e3o de Pe\u00e7as Moldadas (Cap\u00edtulo 8)<\/strong>, que esclarece:<\/p><ul><li>o que deve ser inspecionado<\/li><li>como lidar com desvios<\/li><li>como tratar caracter\u00edsticas funcionais vs. n\u00e3o funcionais<\/li><li>como gerir a varia\u00e7\u00e3o de contra\u00e7\u00e3o<\/li><li>como documentar acordos<\/li><\/ul><p class=\"translation-block\">A ISO\u202f20457 \u00e9 a primeira norma a combinar regras de toler\u00e2ncia e regras de aceita\u00e7\u00e3o num sistema completo para pe\u00e7as pl\u00e1sticas moldadas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a14f1f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0a14f1f\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d077de4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d077de4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3338b5a\" data-id=\"3338b5a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-99deb4b elementor-widget elementor-widget-heading\" data-id=\"99deb4b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Boyans_Simplified_Injection_Molding_Tolerance_Chart\"><\/span>Gr\u00e1fico de Toler\u00e2ncias Simplificado da Boyan para Moldagem por Inje\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ed7f26 elementor-widget elementor-widget-text-editor\" data-id=\"4ed7f26\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Se n\u00e3o for um especialista em moldagem por inje\u00e7\u00e3o e apenas precisar de pe\u00e7as moldadas para o seu produto, n\u00e3o precisa de gastar muito tempo a estudar estas normas. Para facilitar as coisas, <strong>o Boyan criou um gr\u00e1fico de toler\u00e2ncias simplificado<\/strong> que serve como refer\u00eancia pr\u00e1tica para a maioria dos projetos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9707af3 elementor-widget elementor-widget-text-editor\" data-id=\"9707af3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table style=\"border-collapse: collapse; width: 100%; font-family: Arial, sans-serif; table-layout: fixed;\"><colgroup> <col style=\"width: 28%;\"> <col style=\"width: 12%;\"> <col style=\"width: 12%;\"> <col style=\"width: 12%;\"> <col style=\"width: 12%;\"> <col style=\"width: 12%;\"> <col style=\"width: 12%;\"> <\/colgroup><thead><tr><th style=\"border: 1px solid #000000; padding: 8px; text-align: left;\">Dimens\u00e3o Nominal (mm)<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0-20<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">20-50<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">50-120<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">120-230<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">230-400<\/th><th style=\"border: 1px solid #000; padding: 8px; text-align: center;\">400-1000<\/th><\/tr><\/thead><tbody><tr><td style=\"border: 1px solid #000; padding: 8px;\">Muito apertado (\u00b1mm)<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.02<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.03<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.04<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.05<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.10<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.20<\/td><\/tr><tr><td style=\"border: 1px solid #000; padding: 8px;\">Apertado (\u00b1mm)<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.10<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.15<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.20<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.30<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.40<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.90<\/td><\/tr><tr><td style=\"border: 1px solid #000; padding: 8px;\">Normal (\u00b1mm)<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.20<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.25<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.35<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.55<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.80<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">1.80<\/td><\/tr><tr><td style=\"border: 1px solid #000; padding: 8px;\">Largo (\u00b1mm)<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.35<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.40<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.60<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">0.95<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">1.40<\/td><td style=\"border: 1px solid #000; padding: 8px; text-align: center;\">3.00<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30c37b6 elementor-widget elementor-widget-text-editor\" data-id=\"30c37b6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Para pe\u00e7as pl\u00e1sticas de precis\u00e3o geral, as normas mencionadas acima funcionam bem. Quando um projeto exige toler\u00e2ncias ainda mais apertadas \u2014 semelhantes a <strong><a href=\"https:\/\/boyanmfg.com\/shop\/injection-mold-for-lego-brick-like-parts\/\">Componentes LEGO<\/a><\/strong>\u2014 estas faixas mais rigorosas tamb\u00e9m s\u00e3o alcan\u00e7\u00e1veis, mas apenas sob <strong>condi\u00e7\u00f5es de produ\u00e7\u00e3o de precis\u00e3o<\/strong>, o que naturalmente implica custos mais elevados. No nosso gr\u00e1fico, este n\u00edvel aparece como a <strong>\u201cmuito apertado\u201d<\/strong> classe de toler\u00e2ncia. Alcan\u00e7ar tal precis\u00e3o pode exigir a constru\u00e7\u00e3o de um <strong>molde de teste<\/strong> antes de comprometer com o molde de produ\u00e7\u00e3o final.<\/li><li>Como este gr\u00e1fico simplificado n\u00e3o distingue entre diferentes materiais ou entre diferentes tipos de caracter\u00edsticas (como dimens\u00e3o A vs. dimens\u00e3o B), os valores devem ser vistos como <strong>orienta\u00e7\u00f5es aproximadas em vez de limites estritos<\/strong>.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28d9261 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"28d9261\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fb7663f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fb7663f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e8ee725\" data-id=\"e8ee725\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be9d9b9 elementor-widget elementor-widget-heading\" data-id=\"be9d9b9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Understanding_Injection_Molding_Tolerance_Components\"><\/span>Compreens\u00e3o dos Componentes de Toler\u00e2ncia na Moldagem por Inje\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f98b4fd elementor-widget elementor-widget-text-editor\" data-id=\"f98b4fd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">A escolha da gama de toler\u00e2ncias correta \u00e9 um passo crucial para garantir o encaixe e a funcionalidade precisos das pe\u00e7as. As toler\u00e2ncias consistem essencialmente na dimens\u00e3o nominal e nas toler\u00e2ncias superior e inferior. Aqui est\u00e1 um guia conciso sobre como selecionar as toler\u00e2ncias adequadas para as dimens\u00f5es correspondentes:<\/p><h3><span class=\"ez-toc-section\" id=\"Norminal_dimension_Upper_and_Lower_Tolerances\"><\/span>Dimens\u00e3o nominal, Toler\u00e2ncias Superior e Inferior<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>A toler\u00e2ncia \u00e9 constitu\u00edda pelos<strong> dimens\u00e3o nominal<\/strong> e o <strong>toler\u00e2ncias superiores e inferiores<\/strong>. A dimens\u00e3o nominal \u00e9 a dimens\u00e3o de base especificada, enquanto as toler\u00e2ncias superior e inferior definem o intervalo de dimens\u00f5es aceit\u00e1vel em torno da dimens\u00e3o nominal.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-776d222 elementor-widget elementor-widget-image\" data-id=\"776d222\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"350\" height=\"208\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/tolerance-band-for-molding.jpg\" class=\"attachment-large size-large wp-image-6681\" alt=\"banda de toler\u00e2ncia para moldagem por inje\u00e7\u00e3o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/tolerance-band-for-molding.jpg 350w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/tolerance-band-for-molding-300x178.jpg 300w\" sizes=\"(max-width: 350px) 100vw, 350px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fee2d9 elementor-widget elementor-widget-text-editor\" data-id=\"7fee2d9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Na moldagem por inje\u00e7\u00e3o, a zona de toler\u00e2ncia \u00e9 frequentemente <strong>sim\u00e9trica, como \u00b10,08 mm ou \u00b10,15 mm<\/strong>. Isto d\u00e1 aos fabricantes um tamanho alvo claro para atingir, porque o desvio positivo e negativo em rela\u00e7\u00e3o ao alvo s\u00e3o geralmente considerados igualmente prov\u00e1veis.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e8c9cc elementor-widget elementor-widget-text-editor\" data-id=\"1e8c9cc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Choosing_Dimension_Range\"><\/span>Sele\u00e7\u00e3o da gama de dimens\u00f5es<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Ao consultar as normas de toler\u00e2ncia, como a DIN 16901, pode determinar uma gama de dimens\u00f5es adequada para materiais espec\u00edficos. Estas normas fornecem toler\u00e2ncias recomendadas para diferentes tipos de dimens\u00f5es, tais como as dimens\u00f5es do Tipo A e do Tipo B.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"Determining_Nominal_Dimensions\"><\/span>Determina\u00e7\u00e3o das dimens\u00f5es nominais<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Selecionar a dimens\u00e3o nominal \u00e9 um passo cr\u00edtico, embora muitas vezes n\u00e3o seja diretamente definida pelas normas de toler\u00e2ncia. O tamanho nominal deve ser determinado de acordo com a inten\u00e7\u00e3o de projeto, requisitos funcionais e compatibilidade de montagem. Por exemplo, se uma pe\u00e7a tiver de encaixar estreitamente com componentes de acoplamento, pode ser necess\u00e1ria uma dimens\u00e3o nominal menor ou mais precisa.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"Considering_Practical_Application\"><\/span>Considerar a aplica\u00e7\u00e3o pr\u00e1tica<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Ao selecionar as toler\u00e2ncias, o ambiente de aplica\u00e7\u00e3o pr\u00e1tica da pe\u00e7a tamb\u00e9m deve ser considerado. Por exemplo, se a pe\u00e7a for utilizada em ambientes com varia\u00e7\u00f5es significativas de temperatura, poder\u00e1 ser necess\u00e1rio um intervalo de toler\u00e2ncia maior para acomodar a expans\u00e3o ou contra\u00e7\u00e3o t\u00e9rmica.<\/li><\/ul><h3><span class=\"ez-toc-section\" id=\"Coordination_and_Verification\"><\/span>Coordena\u00e7\u00e3o e verifica\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Uma vez estabelecidas as toler\u00e2ncias, devem ser revistas com a equipa de projeto, o departamento de produ\u00e7\u00e3o e o pessoal de controlo de qualidade para garantir que s\u00e3o fabric\u00e1veis e capazes de cumprir os requisitos de desempenho. Quando necess\u00e1rio, devem ser realizados testes e valida\u00e7\u00f5es para confirmar que as toler\u00e2ncias selecionadas s\u00e3o apropriadas.<\/li><\/ul><p class=\"translation-block\">Em resumo, a sele\u00e7\u00e3o da toler\u00e2ncia adequada envolve uma considera\u00e7\u00e3o abrangente dos requisitos do projeto, propriedades do material, m\u00e9todos de processamento e ambientes de aplica\u00e7\u00e3o no mundo real, para garantir a qualidade e o desempenho do produto.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67366e2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"67366e2\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-06aa5bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"06aa5bc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b9e580e\" data-id=\"b9e580e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62fee5b elementor-widget elementor-widget-heading\" data-id=\"62fee5b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Let_Boyan_Help_You_Select_the_Right_Injection_Molding_Tolerances\"><\/span>Deixe a Boyan Ajud\u00e1-lo a Selecionar as Toler\u00e2ncias Corretas para Moldagem por Inje\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4eec8bc elementor-widget elementor-widget-text-editor\" data-id=\"4eec8bc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">A sele\u00e7\u00e3o de toler\u00e2ncias adequadas \u00e9 crucial para garantir a qualidade e a funcionalidade das pe\u00e7as de pl\u00e1stico. Dada a suavidade e elasticidade dos pl\u00e1sticos, a medi\u00e7\u00e3o exacta das suas dimens\u00f5es pode ser um desafio. Oferecemos a nossa experi\u00eancia para o ajudar a determinar o intervalo de toler\u00e2ncia dimensional adequado. Eis a nossa abordagem e metodologia:<\/p><h3><span class=\"ez-toc-section\" id=\"Focusing_on_Key_Dimensions\"><\/span>Centrar-se nas dimens\u00f5es-chave<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Para as dimens\u00f5es chave que s\u00e3o cr\u00edticas para a funcionalidade e qualidade geral do produto, estabelecemos intervalos de toler\u00e2ncia rigorosos. Criamos ferramentas de medi\u00e7\u00e3o especializadas, tais como medidores go\/no-go, para garantir uma medi\u00e7\u00e3o precisa das dimens\u00f5es.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aca52f1 elementor-widget elementor-widget-image\" data-id=\"aca52f1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/elementor\/thumbs\/CNC-machined-3d-inspection-gauge-r8r89ue10ms2cdvjixfvmzrk1jqjq6yzwbswr37eee.jpg\" title=\"Medidor de inspe\u00e7\u00e3o 3d maquinado por CNC\" alt=\"Medidor de inspe\u00e7\u00e3o 3d maquinado por CNC para verificar pe\u00e7as de pl\u00e1stico\" loading=\"lazy\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Uma ferramenta de inspe\u00e7\u00e3o maquinada por CNC feita de a\u00e7o<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3459378 elementor-widget elementor-widget-image\" data-id=\"3459378\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/boyanmfg.com\/shop\/injection-mold-for-lego-brick-like-parts\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/elementor\/thumbs\/cnc-machined-inspection-gauge-for-plastic-bricks-r8r87a9uev9yqllcgtmfun0dtsckrutavnvbpyzydg.jpg\" title=\"medidor de inspe\u00e7\u00e3o maquinado em cnc para tijolos de pl\u00e1stico\" alt=\"medidor de inspe\u00e7\u00e3o maquinado em cnc para tijolos de pl\u00e1stico\" loading=\"lazy\">\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Outro medidor de inspe\u00e7\u00e3o fabricado por CNC<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5414c4 elementor-widget elementor-widget-image\" data-id=\"b5414c4\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"464\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/inspection-result-for-the-plastic-bricks.jpg\" class=\"attachment-large size-large wp-image-1044\" alt=\"resultado do controlo dos tijolos de pl\u00e1stico\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/inspection-result-for-the-plastic-bricks.jpg 700w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/inspection-result-for-the-plastic-bricks-600x398.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2020\/01\/inspection-result-for-the-plastic-bricks-300x199.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3414b29 elementor-widget elementor-widget-text-editor\" data-id=\"3414b29\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Handling_Less_Important_Dimensions\"><\/span>Manuseamento de dimens\u00f5es menos importantes<span class=\"ez-toc-section-end\"><\/span><\/h3><ul><li>Para dimens\u00f5es secund\u00e1rias menos cr\u00edticas, utilizamos normalmente ferramentas de medi\u00e7\u00e3o padr\u00e3o, como paqu\u00edmetros. Tamb\u00e9m avaliamos o ajuste destas dimens\u00f5es utilizando pe\u00e7as correspondentes para garantir a compatibilidade.<\/li><li>Para al\u00e9m de utilizar pe\u00e7as de encaixe para medi\u00e7\u00e3o, tamb\u00e9m podemos utilizar ferramentas de inspe\u00e7\u00e3o impressas em 3D para medir a precis\u00e3o dimensional. Embora os produtos impressos em 3D tenham uma precis\u00e3o inferior, normalmente entre +\/- 0,1-0,2 mm, s\u00e3o econ\u00f3micos e t\u00eam ciclos de produ\u00e7\u00e3o curtos, o que os torna adequados para aplica\u00e7\u00f5es com requisitos de precis\u00e3o ligeiramente inferiores.<\/li><li>Por vezes, apenas garantimos o ajuste sem fornecer valores de toler\u00e2ncia espec\u00edficos. Como j\u00e1 foi referido, \u00e9 dif\u00edcil medir com precis\u00e3o as dimens\u00f5es do pl\u00e1stico, especialmente no caso de materiais mais macios como o TPE, o TPU e o silicone.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-d913cfc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d913cfc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-711222d\" data-id=\"711222d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-76d7203 elementor-widget elementor-widget-image\" data-id=\"76d7203\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/elementor\/thumbs\/3D-printed-samples-detecting-3D-contours-2-r8r8bgo0sczuc7iw2mmqxl24vfrazfecsc90i8szom.jpg\" title=\"Amostras impressas em 3D que detectam contornos 3D 2\" alt=\"Amostras impressas em 3D para dete\u00e7\u00e3o de contornos 3D, imagem 2\" loading=\"lazy\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0c19a23\" data-id=\"0c19a23\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1c6f057 elementor-widget elementor-widget-image\" data-id=\"1c6f057\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"450\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/3d-printed-inspection-gauge.jpg\" class=\"attachment-large size-large wp-image-6688\" alt=\"Medidor de inspe\u00e7\u00e3o impresso em 3D\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/3d-printed-inspection-gauge.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/3d-printed-inspection-gauge-300x225.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a5b5f3 elementor-widget elementor-widget-text-editor\" data-id=\"7a5b5f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Information_and_Materials_Required_for_Effective_Tolerance_Determination\"><\/span>Informa\u00e7\u00f5es e materiais necess\u00e1rios para a determina\u00e7\u00e3o efectiva da toler\u00e2ncia<span class=\"ez-toc-section-end\"><\/span><\/h3><p class=\"translation-block\">Para desempenhar estas tarefas de forma mais eficaz, necessitamos das seguintes informa\u00e7\u00f5es e materiais da sua parte:<\/p><ul><li><strong>Cen\u00e1rios de utiliza\u00e7\u00e3o espec\u00edficos da pe\u00e7a<\/strong>: Compreender o ambiente e as condi\u00e7\u00f5es em que a pe\u00e7a ser\u00e1 utilizada ajuda-nos a determinar com mais exatid\u00e3o o intervalo de toler\u00e2ncia.<\/li><li><strong>Amostras de pe\u00e7as correspondentes<\/strong>: Se poss\u00edvel, fornecer amostras de outras pe\u00e7as que ser\u00e3o utilizadas em conjunto com a pe\u00e7a em quest\u00e3o pode ajudar-nos a avaliar melhor e a testar a adaptabilidade das toler\u00e2ncias.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1391a0 elementor-widget elementor-widget-text-editor\" data-id=\"e1391a0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">O nosso objetivo \u00e9 ajud\u00e1-lo a determinar as toler\u00e2ncias corretas de uma forma econ\u00f3mica e eficiente. Esta abordagem \u00e9 particularmente ben\u00e9fica para as pequenas e m\u00e9dias empresas, uma vez que pode poupar tempo e custos, garantindo simultaneamente a qualidade do produto.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3a8235 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"c3a8235\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-408f4c2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"408f4c2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b38303f\" data-id=\"b38303f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8696101 elementor-widget elementor-widget-heading\" data-id=\"8696101\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4fcbcc2 elementor-widget elementor-widget-toggle\" data-id=\"4fcbcc2\" data-element_type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8361\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-8361\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Como \u00e9 que a precis\u00e3o das pe\u00e7as moldadas por inje\u00e7\u00e3o se compara com a das pe\u00e7as met\u00e1licas?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8361\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-8361\"><p class=\"translation-block\">Um erro comum para quem n\u00e3o est\u00e1 familiarizado com pl\u00e1sticos \u00e9 aplicar diretamente as toler\u00e2ncias de pe\u00e7as met\u00e1licas a pe\u00e7as moldadas por inje\u00e7\u00e3o.<\/p>\n<p class=\"translation-block\">Os pl\u00e1sticos comportam-se de forma muito diferente: t\u00eam menor rigidez, maior deforma\u00e7\u00e3o e as suas dimens\u00f5es finais s\u00e3o influenciadas por muitos par\u00e2metros de moldagem. Uma certa quantidade de empenamento tamb\u00e9m \u00e9 inevit\u00e1vel. Por estas raz\u00f5es, as pe\u00e7as de pl\u00e1stico geralmente n\u00e3o conseguem manter as mesmas toler\u00e2ncias apertadas que as pe\u00e7as met\u00e1licas usinadas.<\/p>\n<p class=\"translation-block\">No entanto, podemos controlar rigorosamente <strong>dimens\u00f5es cr\u00edticas<\/strong> e alcan\u00e7ar alta precis\u00e3o onde necess\u00e1rio (at\u00e9 <strong>\u00b10,02 mm<\/strong>). Para dimens\u00f5es afetadas por empenamento natural, focamo-nos nos requisitos funcionais e est\u00e9ticos em vez de for\u00e7ar toler\u00e2ncias irrealistas.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8362\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-8362\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Os utilizadores em geral precisam de estudar normas como a DIN 16901 ou a ISO 20457?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8362\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-8362\"><p class=\"translation-block\">A maioria dos utilizadores n\u00e3o precisa de estudar detalhadamente a DIN 16901 ou a ISO 20457. Estas normas s\u00e3o principalmente utilizadas por engenheiros e equipas de qualidade. Para a maioria dos projetos, basta compreender o que significa toler\u00e2ncia, como afeta a fun\u00e7\u00e3o da pe\u00e7a e que intervalos de toler\u00e2ncia s\u00e3o tipicamente alcan\u00e7\u00e1veis. \u00c9 por isso que fornecemos um gr\u00e1fico de toler\u00e2ncias simplificado baseado em experi\u00eancia real de produ\u00e7\u00e3o.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8363\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-8363\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Qual \u00e9 a diferen\u00e7a entre toler\u00e2ncia dimensional e toler\u00e2ncia geom\u00e9trica?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8363\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-8363\"><p class=\"translation-block\">A toler\u00e2ncia dimensional controla o tamanho de uma caracter\u00edstica, enquanto a toler\u00e2ncia geom\u00e9trica controla a forma, a planicidade, o paralelismo, a redondeza e outras caracter\u00edsticas relacionadas com a forma. A norma ISO 20457 d\u00e1 mais \u00eanfase \u00e0s toler\u00e2ncias geom\u00e9tricas do que normas mais antigas como a DIN 16901.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8364\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-8364\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">O desenho da pe\u00e7a afeta a toler\u00e2ncia que pode ser alcan\u00e7ada?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8364\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-8364\"><p class=\"translation-block\">Sim. Caracter\u00edsticas como paredes longas e finas, grandes superf\u00edcies planas, nervuras, bossagens e geometria assim\u00e9trica podem aumentar a deforma\u00e7\u00e3o e tornar mais dif\u00edcil atingir toler\u00e2ncias apertadas. Boas pr\u00e1ticas de conce\u00e7\u00e3o \u2014 espessura uniforme das paredes, fluxo equilibrado e \u00e2ngulo de sa\u00edda adequado \u2014 ajudam a melhorar a estabilidade dimensional.<\/p>\n<p class=\"translation-block\">\u00a0<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8365\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-8365\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Diferentes \u00e1reas da mesma pe\u00e7a podem ter n\u00edveis de toler\u00e2ncia diferentes?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8365\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-8365\"><p class=\"translation-block\">Sim. \u00c9 comum aplicar toler\u00e2ncias apertadas apenas a caracter\u00edsticas cr\u00edticas (encaixes por press\u00e3o, pontos de alinhamento, superf\u00edcies de veda\u00e7\u00e3o) e utilizar toler\u00e2ncias normais para \u00e1reas n\u00e3o cr\u00edticas. Esta abordagem reduz os custos, garantindo simultaneamente o desempenho funcional.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8366\" class=\"elementor-tab-title\" data-tab=\"6\" role=\"button\" aria-controls=\"elementor-tab-content-8366\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Se uma dimens\u00e3o n\u00e3o tiver uma toler\u00e2ncia especificada, deve cumprir a toler\u00e2ncia geral?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8366\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"6\" role=\"region\" aria-labelledby=\"elementor-tab-title-8366\"><p class=\"translation-block\">N\u00e3o realmente.<\/p>\n<p class=\"translation-block\">De acordo com a ISO 20457:2018, uma pe\u00e7a \u00e9 aceit\u00e1vel desde que cumpra os seus <strong>requisitos funcionais e de utiliza\u00e7\u00e3o<\/strong>, mesmo que algumas dimens\u00f5es estejam fora da toler\u00e2ncia geral\u2014salvo acordo em contr\u00e1rio.<\/p>\n<p class=\"translation-block\">A \u00fanica exce\u00e7\u00e3o \u00e9 quando um desvio afeta a apar\u00eancia ou a perce\u00e7\u00e3o do utilizador, mesmo que a pe\u00e7a ainda funcione corretamente.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8367\" class=\"elementor-tab-title\" data-tab=\"7\" role=\"button\" aria-controls=\"elementor-tab-content-8367\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Podem ser alcan\u00e7adas toler\u00e2ncias muito apertadas para pe\u00e7as semelhantes a pe\u00e7as LEGO?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8367\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"7\" role=\"region\" aria-labelledby=\"elementor-tab-title-8367\"><p class=\"translation-block\">Sim, mas alcan\u00e7ar tal precis\u00e3o frequentemente requer:<\/p>\n<ul>\n<li>Ferramentaria de alta precis\u00e3o<\/li>\n<li>Condi\u00e7\u00f5es de moldagem est\u00e1veis e repet\u00edveis<\/li>\n<li>Materiais com baixa retra\u00e7\u00e3o<\/li>\n<li>Em alguns casos, um <strong>molde de teste<\/strong> antes de construir o molde de produ\u00e7\u00e3o final<\/li>\n<\/ul>\n<p class=\"translation-block\">Estes passos ajudam a confirmar se a precis\u00e3o necess\u00e1ria \u00e9 realista e repet\u00edvel.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8368\" class=\"elementor-tab-title\" data-tab=\"8\" role=\"button\" aria-controls=\"elementor-tab-content-8368\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Como escolho a toler\u00e2ncia certa para a minha pe\u00e7a?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8368\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"8\" role=\"region\" aria-labelledby=\"elementor-tab-title-8368\"><p class=\"translation-block\">Comece por considerar:<\/p>\n<ul>\n<li>Requisitos funcionais da pe\u00e7a<\/li>\n<li>Se as caracter\u00edsticas devem encaixar, travar ou deslizar juntas<\/li>\n<li>Caracter\u00edsticas de retra\u00e7\u00e3o do material<\/li>\n<li>Compensa\u00e7\u00f5es entre custo e precis\u00e3o<\/li>\n<\/ul>\n<p class=\"translation-block\">Se n\u00e3o tiver a certeza, a nossa equipa de engenharia pode rever o seu design e recomendar toler\u00e2ncias apropriadas.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-8369\" class=\"elementor-tab-title\" data-tab=\"9\" role=\"button\" aria-controls=\"elementor-tab-content-8369\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Toler\u00e2ncia mais apertada significa sempre custo mais elevado?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-8369\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"9\" role=\"region\" aria-labelledby=\"elementor-tab-title-8369\"><p class=\"translation-block\">Geralmente sim. Toler\u00e2ncias mais apertadas requerem:<\/p>\n<ul>\n<li>Ferramentaria mais precisa<\/li>\n<li>Controlo de processo mais rigoroso<\/li>\n<li>Tempos de ciclo mais longos<\/li>\n<li>Inspe\u00e7\u00f5es e verifica\u00e7\u00f5es de qualidade adicionais<\/li>\n<\/ul>\n<p class=\"translation-block\">Para a maioria das pe\u00e7as, um intervalo de toler\u00e2ncia padr\u00e3o \u00e9 suficiente e mais econ\u00f3mico.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-83610\" class=\"elementor-tab-title\" data-tab=\"10\" role=\"button\" aria-controls=\"elementor-tab-content-83610\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">A Boyan pode ajudar a verificar se os meus requisitos de toler\u00e2ncia s\u00e3o alcan\u00e7\u00e1veis?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-83610\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"10\" role=\"region\" aria-labelledby=\"elementor-tab-title-83610\"><p class=\"translation-block\">Sim. Se partilhar o seu modelo CAD e requisitos de toler\u00e2ncia, podemos avaliar a viabilidade e sugerir ajustes se necess\u00e1rio. Para toler\u00e2ncias extremamente apertadas, podemos recomendar construir primeiro um molde de teste para validar o design.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e8a939 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1e8a939\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d68acf4 elementor-widget elementor-widget-spacer\" data-id=\"d68acf4\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f135ba1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f135ba1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f988217\" data-id=\"f988217\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0b52235 elementor-widget elementor-widget-menu-anchor\" data-id=\"0b52235\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"standards\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2758be elementor-widget elementor-widget-heading\" data-id=\"f2758be\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Appendix_Common_Standards_for_Injection_Molded_Parts\"><\/span>Ap\u00eandice: Normas Comuns para Pe\u00e7as Moldadas por Inje\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81c7091 elementor-widget elementor-widget-text-editor\" data-id=\"81c7091\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">No processo de fabrico e conce\u00e7\u00e3o de pe\u00e7as moldadas por inje\u00e7\u00e3o, s\u00e3o normalmente referenciadas v\u00e1rias normas para garantir a qualidade e a consist\u00eancia do produto. Estas normas s\u00e3o listadas abaixo para uma refer\u00eancia r\u00e1pida:<\/p><ul><li><strong>DIN 16901: 1982-11<\/strong>\u00a0 \u2014 Esta norma alem\u00e3 aborda especificamente as toler\u00e2ncias dimensionais e os desvios para componentes moldados em pl\u00e1stico, aplic\u00e1vel a uma variedade de materiais pl\u00e1sticos utilizados na moldagem por inje\u00e7\u00e3o.<\/li><li><strong>ISO 20457: 2018 <\/strong>\u2014 Esta norma internacional oferece um guia abrangente para toler\u00e2ncias dimensionais de pe\u00e7as moldadas em pl\u00e1stico, aplic\u00e1vel a v\u00e1rios m\u00e9todos de processamento de pl\u00e1sticos.<\/li><li><strong>DIN 16742 \u2014 <\/strong>\u00c9 uma norma para toler\u00e2ncias gerais e condi\u00e7\u00f5es de aceita\u00e7\u00e3o para pe\u00e7as moldadas em pl\u00e1stico. Aplica-se n\u00e3o s\u00f3 \u00e0 moldagem por inje\u00e7\u00e3o, mas tamb\u00e9m \u00e0 moldagem por compress\u00e3o e \u00e0 moldagem por extrus\u00e3o.<\/li><li><strong>GB\/T 14486-2008 \u2014 <\/strong>Esta \u00e9 uma norma nacional da China, que abrange as especifica\u00e7\u00f5es de toler\u00e2ncia dimensional para pe\u00e7as moldadas em pl\u00e1stico, adequada para v\u00e1rios m\u00e9todos de processamento de pl\u00e1sticos.<\/li><li><strong>Norma da Ind\u00fastria Autom\u00f3vel QC-T-29017-1991 \u2014 <\/strong>Esta norma espec\u00edfica para a ind\u00fastria autom\u00f3vel da China detalha as toler\u00e2ncias dimensionais para componentes moldados em pl\u00e1stico no \u00e2mbito autom\u00f3vel.<\/li><li><strong>SAIC Standard MGR ES.22.PL.103 \u2014 <\/strong>Esta \u00e9 uma norma corporativa da SAIC Motor Corporation Limited na China, que orienta especificamente as toler\u00e2ncias dimensionais no design e fabrica\u00e7\u00e3o de pe\u00e7as pl\u00e1sticas dentro da empresa.<\/li><li><a href=\"https:\/\/www.dau-components.co.uk\/doc\/General_Tolerances_-DIN_-ISO_-2768.pdf\" target=\"_blank\" rel=\"noopener\"><strong>ISO 2768<\/strong><\/a> \u2014 Esta norma internacional \u00e9 aplic\u00e1vel a pe\u00e7as usinadas, incluindo componentes pl\u00e1sticos, onde toler\u00e2ncias espec\u00edficas n\u00e3o s\u00e3o explicitamente declaradas.<\/li><li><strong>JIS B 0401 \u2014 <\/strong>Esta norma industrial japonesa, semelhante \u00e0 ISO 2768, fornece orienta\u00e7\u00e3o para dimens\u00f5es n\u00e3o especificamente indicadas com toler\u00e2ncias em desenhos de engenharia mec\u00e2nica.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd53cd1 elementor-widget elementor-widget-text-editor\" data-id=\"fd53cd1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"translation-block\">Entre estas normas, a ISO 2768 \u00e9 talvez a mais conhecida. No entanto, \u00e9 uma norma geral para toler\u00e2ncias n\u00e3o especificadas e n\u00e3o foi especificamente concebida para pe\u00e7as moldadas por inje\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49980bc elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"49980bc\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-975c154 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"975c154\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3381143\" data-id=\"3381143\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98775a3 elementor-widget elementor-widget-spacer\" data-id=\"98775a3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6797600 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6797600\" data-element_type=\"section\" data-settings='{\"background_background\":\"classic\"}'>\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ddd92d6\" data-id=\"ddd92d6\" data-element_type=\"column\" data-settings='{\"background_background\":\"classic\"}'>\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ce9beee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ce9beee\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-eceb6ff\" data-id=\"eceb6ff\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dd49a3f elementor-widget elementor-widget-image\" data-id=\"dd49a3f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TPU-overmolded-triangle-box.png\" class=\"attachment-large size-large wp-image-6453\" alt=\"Caixa triangular sobremoldada em TPU\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TPU-overmolded-triangle-box.png 400w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2023\/11\/TPU-overmolded-triangle-box-300x225.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-99fd0f5\" data-id=\"99fd0f5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a855b3d elementor-widget elementor-widget-heading\" data-id=\"a855b3d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span>Somos especialistas em moldagem por inje\u00e7\u00e3o de pl\u00e1stico. Contacte-nos agora e obtenha um or\u00e7amento r\u00e1pido!<\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-8eb2297\" data-id=\"8eb2297\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b835413 elementor-align-center elementor-mobile-align-justify elementor-widget elementor-widget-button\" data-id=\"b835413\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-xl\" href=\"http:\/\/boyanmfg.com\/enquiry-plastic-injection-molding\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Pedir um or\u00e7amento<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Porque s\u00e3o importantes as toler\u00e2ncias na moldagem por inje\u00e7\u00e3o? No processo de produ\u00e7\u00e3o de pe\u00e7as moldadas por inje\u00e7\u00e3o, as varia\u00e7\u00f5es nas dimens\u00f5es s\u00e3o inevit\u00e1veis devido a influ\u00eancias do molde, da m\u00e1quina de moldagem por inje\u00e7\u00e3o, dos materiais e de fatores ambientais. Portanto, definir toler\u00e2ncias razo\u00e1veis para as dimens\u00f5es do produto e garantir que estas sejam cumpridas \u00e9 crucial. Toler\u00e2ncias adequadas podem: Garantir que as pe\u00e7as funcionem corretamente,\u2026&nbsp;<a href=\"https:\/\/boyanmfg.com\/pt\/injection-molding-tolerances\/\" rel=\"bookmark\">Ler mais \u00bb<span class=\"screen-reader-text\">Toler\u00e2ncias de Moldagem por Inje\u00e7\u00e3o: DIN 16901, ISO 20457 e as Nossas Diretrizes Pr\u00e1ticas<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":6709,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"on","neve_meta_content_width":91,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[55,72,57],"tags":[],"class_list":["post-6650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-manufacturing-knowledge","category-plastic-molding","category-working-with-boyan"],"acf":[],"_links":{"self":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/posts\/6650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/comments?post=6650"}],"version-history":[{"count":0,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/posts\/6650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/media\/6709"}],"wp:attachment":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/media?parent=6650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/categories?post=6650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/tags?post=6650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}