{"id":3470,"date":"2022-04-30T15:13:26","date_gmt":"2022-04-30T15:13:26","guid":{"rendered":"http:\/\/boyanmfg.com\/?p=3470"},"modified":"2024-05-27T17:16:28","modified_gmt":"2024-05-27T17:16:28","slug":"lead-screw-manufactruing-inspection","status":"publish","type":"post","link":"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/","title":{"rendered":"Tudo o que precisa de saber sobre o fabrico de parafusos de chumbo e m\u00e9todos de inspe\u00e7\u00e3o"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3470\" class=\"elementor elementor-3470\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4e6518c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4e6518c\" 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-df4e8f6\" data-id=\"df4e8f6\" 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-36bd9b5 elementor-widget elementor-widget-heading\" data-id=\"36bd9b5\" 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<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\" 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\"\/><\/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-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Lead_Screw_The_Simple_Mechanism_that_Demands_Basic_Knowledge\" >Parafuso de chumbo: O mecanismo simples que exige conhecimentos b\u00e1sicos<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Table_of_contents\" >\u00cdndice<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Lead_screw_vs_ball_screw\" >Parafuso de avan\u00e7o vs. parafuso de esferas<\/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\/lead-screw-manufactruing-inspection\/#Types_of_thread_for_lead_screws\" >Tipos de rosca para parafusos de avan\u00e7o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Basic_terms_for_lead_screws\" >Termos b\u00e1sicos para parafusos de avan\u00e7o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Designation_of_lead_screws\" >Designa\u00e7\u00e3o dos parafusos de avan\u00e7o<\/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\/lead-screw-manufactruing-inspection\/#Tolerances_for_trapezoidal_screws\" >Toler\u00e2ncias para parafusos trapezoidais<\/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\/lead-screw-manufactruing-inspection\/#Lead_accuracy_and_straightness\" >Precis\u00e3o e retid\u00e3o do chumbo<\/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\/lead-screw-manufactruing-inspection\/#Manufacturing_methods_for_lead_screws\" >M\u00e9todos de fabrico de parafusos de chumbo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/#Inspection_methods_for_lead_screws_and_nuts\" >M\u00e9todos de inspe\u00e7\u00e3o de parafusos e porcas de chumbo<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Lead_Screw_The_Simple_Mechanism_that_Demands_Basic_Knowledge\"><\/span>Parafuso de chumbo: O mecanismo simples que exige conhecimentos b\u00e1sicos<span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59ca839 elementor-widget elementor-widget-text-editor\" data-id=\"59ca839\" 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\">Quais s\u00e3o os <strong>par\u00e2metros b\u00e1sicos<\/strong> do parafuso de avan\u00e7o e da porca? Quais s\u00e3o os <strong>processos de fabrico<\/strong> opcionais do parafuso de avan\u00e7o? <strong>Como inspecionar<\/strong> o parafuso de avan\u00e7o e com que m\u00e9tricas? Estas s\u00e3o as perguntas que pode ter quando come\u00e7a a conceber uma transmiss\u00e3o por parafuso de avan\u00e7o.<\/p><p class=\"translation-block\">O parafuso de avan\u00e7o \u00e9 um mecanismo simples mas preciso que transforma o movimento rotativo em movimento linear. O seu aspeto \u00e9 bastante simples. No entanto, continua a ser importante compreender os conhecimentos b\u00e1sicos que lhes est\u00e3o subjacentes. Nesta publica\u00e7\u00e3o, vamos apresentar os conceitos b\u00e1sicos dos parafusos de avan\u00e7o e das porcas, os diferentes processos de maquinagem, as m\u00e9tricas utilizadas para medir a qualidade dos parafusos de avan\u00e7o e como inspeccion\u00e1-los.<\/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-bb80710 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"bb80710\" 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-43c4984 elementor-widget elementor-widget-heading\" data-id=\"43c4984\" 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=\"Table_of_contents\"><\/span>\u00cdndice<span class=\"ez-toc-section-end\"><\/span><\/h3>\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-70a03a0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"70a03a0\" 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-21de2a7\" data-id=\"21de2a7\" 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-183eb94 elementor-widget elementor-widget-text-editor\" data-id=\"183eb94\" 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><a href=\"#lead_vs_ball\">Parafuso de avan\u00e7o vs. parafuso de esferas<\/a><\/li><li><a href=\"#thread_types\">Tipos de rosca para parafusos de avan\u00e7o<\/a><\/li><li><a href=\"#basic_terms\">Termos b\u00e1sicos para parafusos de avan\u00e7o<\/a><\/li><li><a href=\"#tolerances\">Toler\u00e2ncias para parafusos trapezoidais<\/a><\/li><\/ul>\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-baa0ebd\" data-id=\"baa0ebd\" 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-ad5d271 elementor-widget elementor-widget-text-editor\" data-id=\"ad5d271\" 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><a href=\"#lead_accuracy_straightness\">Precis\u00e3o e retid\u00e3o do chumbo<\/a><\/li><li><a href=\"#manufacturing_method\">M\u00e9todos de fabrico de parafusos de chumbo<\/a><\/li><li><a href=\"#inspection_method\">M\u00e9todos de inspe\u00e7\u00e3o de parafusos e porcas de chumbo<\/a><\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6ad5136 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ad5136\" 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-5ac8369\" data-id=\"5ac8369\" 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-39411c7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"39411c7\" 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-dcdd0ec elementor-widget elementor-widget-menu-anchor\" data-id=\"dcdd0ec\" 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=\"lead_vs_ball\"><\/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-31f76cc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"31f76cc\" 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-09ad5b3\" data-id=\"09ad5b3\" 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-f636338 elementor-widget elementor-widget-heading\" data-id=\"f636338\" 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=\"Lead_screw_vs_ball_screw\"><\/span>Parafuso de avan\u00e7o vs. parafuso de esferas<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-d05ebfd elementor-widget elementor-widget-text-editor\" data-id=\"d05ebfd\" 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\">Comecemos por comparar os parafusos de avan\u00e7o e os parafusos de esferas. O parafuso de avan\u00e7o tem contacto direto com a porca e gera <strong>atrito de deslizamento<\/strong>. No caso dos fusos de esferas, existem rolos entre os fusos e as porcas, pelo que \u00e9 o <strong>atrito de rolamento<\/strong> entre os componentes m\u00f3veis.<\/p><p class=\"translation-block\">Por esta raz\u00e3o, o parafuso de rolos tem menor fric\u00e7\u00e3o e maior efici\u00eancia de transmiss\u00e3o e \u00e9 mais adequado para transmiss\u00f5es de alta velocidade.<\/p><p class=\"translation-block\">As vantagens dos parafusos de avan\u00e7o s\u00e3o:<\/p><ul><li>Muitos parafusos de avan\u00e7o s\u00e3o <strong>autobloqueado<\/strong>, ou seja, o movimento linear n\u00e3o pode ser convertido em movimento racional. Por vezes, a sua aplica\u00e7\u00e3o exige o autobloqueio.<\/li><li>Os parafusos de avan\u00e7o s\u00e3o <strong>mais simples em termos de estrutura, mais compacto em termos de dimens\u00e3o e mais barato em termos de custos<\/strong>.<\/li><li>S\u00e3o eles<strong> mais adequado para transmiss\u00f5es de bin\u00e1rio elevado<\/strong>.<\/li><\/ul><p class=\"translation-block\">Os parafusos de avan\u00e7o s\u00e3o amplamente utilizados em tornos, macacos, prensas e actuadores lineares.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f1a376b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f1a376b\" 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-5b91603\" data-id=\"5b91603\" 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-3536130 elementor-widget elementor-widget-menu-anchor\" data-id=\"3536130\" 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=\"thread_types\"><\/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-aa55ea0 elementor-widget elementor-widget-heading\" data-id=\"aa55ea0\" 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=\"Types_of_thread_for_lead_screws\"><\/span>Tipos de rosca para parafusos de avan\u00e7o<span class=\"ez-toc-section-end\"><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7fa4b45 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7fa4b45\" 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-26acd54\" data-id=\"26acd54\" 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-847e67b elementor-widget elementor-widget-text-editor\" data-id=\"847e67b\" 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 parafusos de avan\u00e7o t\u00eam normalmente dentes maiores e mais planos do que os outros parafusos, o que lhes permite ser mais fortes para transmitir bin\u00e1rio ou pot\u00eancia. Com base em diferentes geometrias de rosca, os parafusos de avan\u00e7o s\u00e3o classificados como<\/p><ul><li><strong>Rosca ACME<\/strong>: Tem um ge\u00f3metro semelhante ao da rosca trapezoidal, exceto que tem um \u00e2ngulo de rosca de 29\u00b0, e vem em polegadas.<\/li><li><strong>Rosca m\u00e9trica trapezoidal ISO<\/strong>: Tem um \u00e2ngulo de rosca de 30\u00b0 e as dimens\u00f5es s\u00e3o em mil\u00edmetros.<\/li><li><strong>Rosca quadrada<\/strong>: Os flancos da rosca s\u00e3o verticais em rela\u00e7\u00e3o ao seu eixo. \u00c9 normalmente utilizada para a transmiss\u00e3o de cargas axiais elevadas. Os macacos e as morsas utilizam todos roscas quadradas.<\/li><li><strong>Rosca de contraforte<\/strong>O flanco \u00e9 mais plano do que o outro lado. \u00c9 normalmente utilizado para cargas axiais numa dire\u00e7\u00e3o.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a50edf4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a50edf4\" 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-73aa94d\" data-id=\"73aa94d\" 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-4058332 elementor-widget elementor-widget-image\" data-id=\"4058332\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Types-of-thread-for-lead-screws.jpg\" class=\"attachment-full size-full wp-image-3471\" alt=\"Tipos de rosca para parafusos de avan\u00e7o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Types-of-thread-for-lead-screws.jpg 400w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Types-of-thread-for-lead-screws-300x225.jpg 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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1861e6a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1861e6a\" 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-15172fd\" data-id=\"15172fd\" 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-d9b353a elementor-widget elementor-widget-text-editor\" data-id=\"d9b353a\" 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 elas, as roscas trapezoidais ou acme s\u00e3o as mais utilizadas devido \u00e0 sua capacidade de fabrico, precis\u00e3o alcan\u00e7\u00e1vel, propriedade de auto-centraliza\u00e7\u00e3o, efici\u00eancia de transmiss\u00e3o e resist\u00eancia das ra\u00edzes da rosca.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-320c344 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"320c344\" 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-9bf2f8c\" data-id=\"9bf2f8c\" 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-f245dd7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f245dd7\" 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-13f48db elementor-widget elementor-widget-menu-anchor\" data-id=\"13f48db\" 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=\"basic_terms\"><\/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-2aadb70 elementor-widget elementor-widget-heading\" data-id=\"2aadb70\" 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=\"Basic_terms_for_lead_screws\"><\/span> Termos b\u00e1sicos para parafusos de avan\u00e7o<span class=\"ez-toc-section-end\"><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e93612b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e93612b\" 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-7467ca5\" data-id=\"7467ca5\" 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-9605cc1 elementor-widget elementor-widget-text-editor\" data-id=\"9605cc1\" 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\">Conclu\u00edmos os termos b\u00e1sicos para os parafusos de avan\u00e7o da seguinte forma. Coloc\u00e1mos os termos em pares (para as roscas externa e interna, respetivamente) para facilitar a compreens\u00e3o.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a5e8987 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a5e8987\" 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-a692b31\" data-id=\"a692b31\" 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-0d8de81 elementor-widget elementor-widget-image\" data-id=\"0d8de81\" 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\" width=\"600\" height=\"390\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/basic-geometry-for-metric-trapezoidal-thread.jpg\" class=\"attachment-large size-large wp-image-3478\" alt=\"geometria b\u00e1sica para rosca trapezoidal m\u00e9trica\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/basic-geometry-for-metric-trapezoidal-thread.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/basic-geometry-for-metric-trapezoidal-thread-300x195.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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-be0eee5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"be0eee5\" 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-d782756\" data-id=\"d782756\" 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-41c7aaf elementor-widget elementor-widget-text-editor\" data-id=\"41c7aaf\" 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>Di\u00e2metro maior (<strong>d<\/strong> para o exterior, <strong>D<sub>4<\/sub><\/strong> para Interno): O maior di\u00e2metro de uma rosca. \u00c9 a crista de uma rosca externa ou o fundo de uma rosca interna.<\/li><li>Di\u00e2metro do passo (<strong>d<sub>2<\/sub><\/strong> para o exterior, <strong>D<sub>2<\/sub><\/strong> para Interno): Um cilindro hipot\u00e9tico em que a espessura dos dentes \u00e9 igual ao espa\u00e7o. <strong>O di\u00e2metro do passo \u00e9 cr\u00edtico para o desempenho dos parafusos de avan\u00e7o.<\/strong><\/li><li>Di\u00e2metro menor (<strong>d<sub>3<\/sub><\/strong> para o exterior, <strong>D<sub>1<\/sub><\/strong> para Interna): o di\u00e2metro mais pequeno de uma rosca. \u00c9 a crista de uma rosca interna ou o fundo de uma rosca externa.<\/li><li>Passo (<strong>P<\/strong>): a dist\u00e2ncia entre dois dentes vizinhos.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-032191a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"032191a\" 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-a2d6808\" data-id=\"a2d6808\" 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-41795fc elementor-widget elementor-widget-image\" data-id=\"41795fc\" 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\" width=\"600\" height=\"330\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Different-thread-starts.jpg\" class=\"attachment-large size-large wp-image-3482\" alt=\"Come\u00e7os de linhas diferentes\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Different-thread-starts.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Different-thread-starts-300x165.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-39e8a7c elementor-widget elementor-widget-text-editor\" data-id=\"39e8a7c\" 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>N\u00famero de roscas: o n\u00famero de roscas independentes que um parafuso tem.<\/li>\n<li>Chumbo (<strong>L<\/strong>): A dist\u00e2ncia que a rosca avan\u00e7a numa rota\u00e7\u00e3o. \u00c9 igual ao n\u00famero de arranques do parafuso multiplicado pelo passo.<\/li>\n<\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9f53a1e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9f53a1e\" 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-35584f7\" data-id=\"35584f7\" 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-5134613 elementor-widget elementor-widget-heading\" data-id=\"5134613\" 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=\"Designation_of_lead_screws\"><\/span>Designa\u00e7\u00e3o dos parafusos de avan\u00e7o<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-d3d87a3 elementor-widget elementor-widget-text-editor\" data-id=\"d3d87a3\" 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\">Com o que foi explicado acima, eis um exemplo de um parafuso de avan\u00e7o:<\/p><p class=\"translation-block\"><strong>Tr 16*8 (P4) 7H\/7e<\/strong><\/p><ul><li>Tr - Significa rosca trapezoidal m\u00e9trica ISO<\/li><li>16-O di\u00e2metro maior do parafuso interno (porca) e do parafuso externo (barra) \u00e9 de 18 mm.<\/li><li>8-O avan\u00e7o do parafuso \u00e9 de 8 mm.\u00a0<\/li><li>P4-O passo \u00e9 de 4 mm, o que tamb\u00e9m significa que este parafuso tem 2 arranques (2*4 mm=8 mm)<\/li><li>7H - A toler\u00e2ncia para o di\u00e2metro do passo da porca \u00e9 de 7H.<\/li><li>7e - A toler\u00e2ncia para o di\u00e2metro do passo da haste \u00e9 de 7e.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3603989 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3603989\" 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-87a7b32\" data-id=\"87a7b32\" 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-646e64b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"646e64b\" 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-63e1440 elementor-widget elementor-widget-menu-anchor\" data-id=\"63e1440\" 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=\"tolerances\"><\/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-f2cca88 elementor-widget elementor-widget-heading\" data-id=\"f2cca88\" 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=\"Tolerances_for_trapezoidal_screws\"><\/span>Toler\u00e2ncias para parafusos trapezoidais<span class=\"ez-toc-section-end\"><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-14ddcfc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"14ddcfc\" 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-e1c599e\" data-id=\"e1c599e\" 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-5912395 elementor-widget elementor-widget-text-editor\" data-id=\"5912395\" 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\">Ao contr\u00e1rio das classes IT (IT representa a Toler\u00e2ncia Internacional) que \u00e9 amplamente utilizada para toler\u00e2ncias gerais de maquinagem, os parafusos de avan\u00e7o t\u00eam um sistema diferente para definir as suas toler\u00e2ncias dimensionais. As normas de refer\u00eancia s\u00e3o as seguintes:<\/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-00cb79e elementor-widget elementor-widget-text-editor\" data-id=\"00cb79e\" 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><span style=\"color: #666699;\"><em>ISO 2901 : 1993, ISO Roscas de parafuso trapezoidais m\u00e9tricas - Perfil b\u00e1sico e perfil m\u00e1ximo do material<\/em><\/span><\/li><li><span style=\"color: #666699;\"><em>ISO 2902 : 1977, ISO Roscas de parafusos m\u00e9tricos trapezoidais - Plano geral<\/em><\/span><\/li><li><span style=\"color: #666699;\"><em>ISO 2903 : 1993, ISO Roscas m\u00e9tricas de parafusos trapezoidais - Toler\u00e2ncias<\/em><\/span><\/li><li><span style=\"color: #666699;\"><em>ISO 2904: 1977, ISO Roscas de parafusos trapezoidais m\u00e9tricos - Dimens\u00f5es b\u00e1sicas<\/em><\/span><\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e34cd9b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e34cd9b\" 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-17e981f\" data-id=\"17e981f\" 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-b3bdba5 elementor-widget elementor-widget-text-editor\" data-id=\"b3bdba5\" 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\">Sugest\u00e3o\uff1a<\/p><p class=\"translation-block\">N\u00e3o confundir com a toler\u00e2ncia de grau IT que \u00e9 mais utilizada noutras \u00e1reas da engenharia.<\/p><p class=\"translation-block\">Por exemplo, com o grau IT, o \u03a622 H7\/js6 significa de facto:<\/p><ul><li>\u03a622 H7-\u03a622 +0.021\/0 para o buraco;<\/li><li>\u03a622 js7-\u03a622 +\/-0,065 para a haste.<\/li><\/ul><p class=\"translation-block\">No caso dos parafusos de avan\u00e7o, o Tr22*5 7H*7e significa:<\/p><ul><li>7H-19.500~19.875 para D2 (o di\u00e2metro do passo para a porca);<\/li><li>7e-19,114~19,394 para d2 (o di\u00e2metro do passo da haste).<\/li><\/ul><p class=\"translation-block\">Os valores 7H e 7e referem-se \u00e0s faixas de toler\u00e2ncia apenas para o di\u00e2metro do passo (7H para a rosca interna <strong>D<sub>2<\/sub><\/strong> e 7e para a rosca externa <strong>d<sub>2<\/sub><\/strong>). As toler\u00e2ncias para os di\u00e2metros maior e menor s\u00e3o definidas de outras formas. Vamos decomp\u00f4-las aqui:Ti<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-501329e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"501329e\" 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-c047768\" data-id=\"c047768\" 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-0334ab1 elementor-widget elementor-widget-text-editor\" data-id=\"0334ab1\" 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>O di\u00e2metro maior da rosca externa (<strong>d<\/strong>)-sempre 4h<\/li><li>O di\u00e2metro menor da rosca interna (<strong>D<sub>1<\/sub><\/strong>)-sempre 4H<\/li><li>Di\u00e2metro do passo para o exterior (<strong>d<sub>2<\/sub><\/strong>) e Roscas internas (<strong>D<sub>2<\/sub><\/strong>) - existem v\u00e1rias op\u00e7\u00f5es.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-315a9fb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"315a9fb\" 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-5c7bc35\" data-id=\"5c7bc35\" 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-1ffbb0e elementor-widget elementor-widget-text-editor\" data-id=\"1ffbb0e\" 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\"><strong>Classes de toler\u00e2ncia recomendadas para o di\u00e2metro do passo:<\/strong><\/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-21f0449 elementor-widget elementor-widget-image\" data-id=\"21f0449\" 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=\"113\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/recommended-tolerance-class-for-trapezoidal-screw.jpg\" class=\"attachment-large size-large wp-image-3489\" alt=\"classe de toler\u00e2ncia recomendada para parafuso trapezoidal\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/recommended-tolerance-class-for-trapezoidal-screw.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/recommended-tolerance-class-for-trapezoidal-screw-300x57.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-a318a32 elementor-widget elementor-widget-text-editor\" data-id=\"a318a32\" 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\">Aqui, \u201cNormal\u201d e \u201cLongo\u201d referem-se \u00e0 dura\u00e7\u00e3o do compromisso.<\/p><p class=\"translation-block\">\u201cO \u201dm\u00e9dio\u201c pode ser selecionado para a aplica\u00e7\u00e3o habitual. Quando existe dificuldade de maquina\u00e7\u00e3o ou para requisitos de transmiss\u00e3o mais baixos, pode ser selecionado \u201dgrosso\".<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-018cd3f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"018cd3f\" 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-894a5a5\" data-id=\"894a5a5\" 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-298dfb4 elementor-widget elementor-widget-text-editor\" data-id=\"298dfb4\" 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\">Di\u00e2metro principal do parafuso interno (<strong>D<sub>4<\/sub><\/strong>)- apenas \u00e9 definida a dimens\u00e3o m\u00ednima. Isto deve-se provavelmente ao facto de o D<sub>4<\/sub> ser menos importante. Entretanto, como as roscas internas (na porca) s\u00e3o geralmente cortadas por uma m\u00e1quina CNC, a geometria do perfil dos dentes \u00e9 decidida pela forma do cortador, de modo que o D<sub>4<\/sub> n\u00e3o pode ser muito grande sem um limite.<\/p><ul><li>Di\u00e2metro menor do parafuso externo (<strong>d<sub>3<\/sub><\/strong>)-ser\u00e1 o mesmo grau do di\u00e2metro do passo d<sub>2<\/sub>, mas a banda de toler\u00e2ncia ser\u00e1 \u201ch\u201d. Por exemplo, se o valor d<sub>2 <\/sub>\u00e9 8e, ent\u00e3o o d<sub>3 <\/sub>deve ser 8h.<\/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-f507145 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f507145\" 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-382e59b\" data-id=\"382e59b\" 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-1e93677 elementor-widget elementor-widget-text-editor\" data-id=\"1e93677\" 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\">Para cada rosca trapezoidal espec\u00edfica, existe uma <a href=\"https:\/\/amesweb.info\/Screws\/metric-trapezoidal-thread-calculator.aspx\" target=\"_blank\" rel=\"noopener\">calculadora online<\/a> que permite obter mais facilmente as suas toler\u00e2ncias.<\/p>\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-9bbd20a\" data-id=\"9bbd20a\" 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-ed0474c elementor-button-info elementor-widget elementor-widget-button\" data-id=\"ed0474c\" 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-sm\" href=\"https:\/\/amesweb.info\/Screws\/metric-trapezoidal-thread-calculator.aspx\" target=\"_blank\" rel=\"noopener\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-calculator\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Calculadora de rosca trapezoidal m\u00e9trica<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bea17d6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bea17d6\" 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-bc423b7\" data-id=\"bc423b7\" 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-038b000 elementor-widget elementor-widget-heading\" data-id=\"038b000\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Um exemplo: a toler\u00e2ncia para um parafuso e uma porca de acoplamento, Tr20*4-8H*8e (8H para a rosca interior e 8e para a rosca exterior)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1dab8c8 elementor-widget elementor-widget-text-editor\" data-id=\"1dab8c8\" 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\"><strong>Um exemplo: a toler\u00e2ncia para um parafuso e uma porca de acoplamento, Tr20*4-8H*8e (8H para a rosca interna e 8e para a rosca externa)<\/strong><\/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-ea91357 elementor-widget elementor-widget-image\" data-id=\"ea91357\" 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=\"https:\/\/amesweb.info\/Screws\/metric-trapezoidal-thread-calculator.aspx\" target=\"_blank\" rel=\"noopener\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"203\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screw.jpg\" class=\"attachment-large size-large wp-image-3499\" alt=\"toler\u00e2ncias para o parafuso de avan\u00e7o interior e exterior\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screw.jpg 750w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screw-600x162.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screw-300x81.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\">\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6d51337 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6d51337\" 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-1695379\" data-id=\"1695379\" 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-0ed2a76 elementor-widget elementor-widget-image\" data-id=\"0ed2a76\" 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=\"416\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-external-thread.jpg\" class=\"attachment-large size-large wp-image-3501\" alt=\"classe de toler\u00e2ncia para rosca externa\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-external-thread.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-external-thread-300x208.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 barra de parafuso Tr20*4 8e<\/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-bffc0dd elementor-widget elementor-widget-image\" data-id=\"bffc0dd\" 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=\"416\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-internal-thread.jpg\" class=\"attachment-large size-large wp-image-3503\" alt=\"classe de toler\u00e2ncia para rosca interna\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-internal-thread.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerance-class-for-internal-thread-300x208.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 porca Tr20*4 8H<\/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-015ecb9 elementor-widget elementor-widget-text-editor\" data-id=\"015ecb9\" 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\">Agora, se juntarmos as bandas de toler\u00e2ncia para os parafusos exteriores e interiores, elas ter\u00e3o o seguinte aspeto:<\/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-d301e3f elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"d301e3f\" data-element_type=\"widget\" data-settings='{\"slides_to_show\":\"1\",\"navigation\":\"both\",\"autoplay\":\"yes\",\"pause_on_hover\":\"yes\",\"pause_on_interaction\":\"yes\",\"autoplay_speed\":5000,\"infinite\":\"yes\",\"effect\":\"slide\",\"speed\":500}' data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carrossel de imagens\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 de 2\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screws-1.jpg\" alt=\"toler\u00e2ncias para os parafusos de avan\u00e7o interiores e exteriores 1\"><figcaption class=\"elementor-image-carousel-caption\">Toler\u00e2ncias apenas para roscas exteriores e interiores<\/figcaption><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 de 2\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/tolerances-for-inner-and-outer-lead-screws-2.jpg\" alt=\"toler\u00e2ncias para os parafusos de avan\u00e7o interiores e exteriores 2\"><figcaption class=\"elementor-image-carousel-caption\">Toler\u00e2ncias para as roscas exteriores e interiores, bem como para o perfil de base<\/figcaption><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-left\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-right\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\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-76f729f elementor-widget elementor-widget-text-editor\" data-id=\"76f729f\" 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 partir das imagens acima, podemos concluir que:<\/p><ul><li>Existem folgas entre a barra do parafuso e a porca no di\u00e2metro maior, no di\u00e2metro menor e no di\u00e2metro do passo (ou nos flancos);<\/li><li>A folga entre os flancos \u00e9 a mais pequena. Ser\u00e3o os flancos que estar\u00e3o em contacto quando a barra do parafuso for montada com a porca. Isto tamb\u00e9m significa que o di\u00e2metro do passo e os \u00e2ngulos dos flancos s\u00e3o os par\u00e2metros mais cr\u00edticos para o desempenho correto dos parafusos de avan\u00e7o e das porcas.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6526c38 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6526c38\" 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-3109c8b\" data-id=\"3109c8b\" 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-a23ed92 elementor-widget elementor-widget-menu-anchor\" data-id=\"a23ed92\" 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=\"lead_accuracy_straightness\"><\/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-3f4e3cb elementor-widget elementor-widget-heading\" data-id=\"3f4e3cb\" 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=\"Lead_accuracy_and_straightness\"><\/span>Precis\u00e3o e retid\u00e3o do chumbo<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-067adca elementor-widget elementor-widget-text-editor\" data-id=\"067adca\" 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\"><strong>Exatid\u00e3o do avan\u00e7o<\/strong>: A precis\u00e3o do avan\u00e7o ou desvio do avan\u00e7o significa a diferen\u00e7a entre a dist\u00e2ncia linear real e a dist\u00e2ncia linear te\u00f3rica que a h\u00e9lice (ou o parafuso) percorre. \u00c9 normalmente descrita por desvio por metro ou p\u00e9. Por exemplo: 1,2 mm\/metro ou 0,01\u2033\/p\u00e9. Obviamente, quanto maior for a precis\u00e3o do avan\u00e7o, mais preciso ser\u00e1 o movimento linear do parafuso de avan\u00e7o.<\/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-3ec03a8 elementor-widget elementor-widget-image\" data-id=\"3ec03a8\" 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=\"286\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Lead-deviation-for-trapezoidal-screw.jpg\" class=\"attachment-large size-large wp-image-3520\" alt=\"Desvio de avan\u00e7o para parafuso trapezoidal\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Lead-deviation-for-trapezoidal-screw.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Lead-deviation-for-trapezoidal-screw-300x143.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\">Precis\u00e3o do chumbo<\/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\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-5f28fe1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5f28fe1\" 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-de3ba24\" data-id=\"de3ba24\" 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-726889e elementor-widget elementor-widget-text-editor\" data-id=\"726889e\" 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\"><strong>Retid\u00e3o do parafuso de avan\u00e7o<\/strong>: Como a maioria dos parafusos de avan\u00e7o s\u00e3o pe\u00e7as finas e compridas, \u00e9 inevit\u00e1vel que fiquem ligeiramente dobrados. No fabrico de parafusos de avan\u00e7o, \u00e9 necess\u00e1rio especificar a toler\u00e2ncia de retid\u00e3o. Tamb\u00e9m \u00e9 indicada como o desvio por unidade de comprimento (ou o comprimento total da pe\u00e7a). Por exemplo: 1,5 mm\/metro, 0,005\u2033\/p\u00e9, ou 1,2 mm no comprimento total da pe\u00e7a.<\/p><p class=\"translation-block\">A curvatura das barras de parafuso acabadas prov\u00e9m, em parte, das barras de a\u00e7o em bruto e, em parte, do pr\u00f3prio processo de maquinagem. Para melhorar a retid\u00e3o dos parafusos de avan\u00e7o, recomenda-se que se endireitem tanto as barras de a\u00e7o em bruto como os parafusos de avan\u00e7o acabados. Normalmente, \u00e9 poss\u00edvel obter uma retid\u00e3o de 0,15-0,3 mm por metro para a maioria dos processos de maquinagem.<\/p><p class=\"translation-block\">As barras de a\u00e7o em bruto fornecidas em boas condi\u00e7\u00f5es podem ser maquinadas sem pr\u00e9-endireitamento, o que permite poupar muitos custos. \u00c9 importante obter as barras de a\u00e7o de um bom fornecedor.<\/p><p class=\"translation-block\">Quando as barras de a\u00e7o est\u00e3o demasiado dobradas, por exemplo, mais de 1 mm\/metro, provocam tens\u00f5es e calor excessivos no processo de laminagem por parafuso e podem provocar defeitos na superf\u00edcie, como ranhuras e cascas.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b7664fd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b7664fd\" 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-1e9db91\" data-id=\"1e9db91\" 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-62764ff elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"62764ff\" 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-b03df88 elementor-widget elementor-widget-menu-anchor\" data-id=\"b03df88\" 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=\"manufacturing_method\"><\/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-e2126e9 elementor-widget elementor-widget-heading\" data-id=\"e2126e9\" 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=\"Manufacturing_methods_for_lead_screws\"><\/span>M\u00e9todos de fabrico de parafusos de chumbo<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-f9c0832 elementor-widget elementor-widget-heading\" data-id=\"f9c0832\" 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<h4 class=\"elementor-heading-title elementor-size-default\">1. Enrolamento de parafusos<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5d41cf elementor-widget elementor-widget-text-editor\" data-id=\"c5d41cf\" 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 laminagem de parafusos \u00e9 um processo de conforma\u00e7\u00e3o a frio em que 2 rolos (ou, por vezes, 3 rolos) comprimem a barra de a\u00e7o para formar as roscas. \u00c9 o m\u00e9todo de fabrico mais popular para os parafusos de chumbo.<\/p><p class=\"translation-block\">No processo de laminagem por parafuso, o di\u00e2metro maior do parafuso ser\u00e1 maior do que o di\u00e2metro do material em barra (enquanto o di\u00e2metro menor se tornar\u00e1 menor), \u00e9 fundamental que o di\u00e2metro do material em barra seja preciso e se enquadre na toler\u00e2ncia exigida.<\/p><p class=\"translation-block\">Vantagens:<\/p><ol><li>Alta efici\u00eancia e baixo pre\u00e7o. Os dentes do parafuso s\u00e3o normalmente formados por uma passagem, ou por vezes duas passagens, pelo que a produtividade est\u00e1 muito \u00e0 frente de quaisquer outros processos de fabrico.<\/li><li>A superf\u00edcie \u00e9 bastante lisa e \u00e9 endurecida no processo de conforma\u00e7\u00e3o a frio. Os gr\u00e3os da sua microestrutura s\u00e3o mantidos intactos (enquanto o torneamento ou a fresagem cortam os gr\u00e3os), pelo que as roscas laminadas s\u00e3o mais duras, mais fortes e t\u00eam melhor resist\u00eancia ao impacto e ao desgaste.<\/li><li>As matrizes de rolos s\u00e3o resistentes. S\u00e3o normalmente adequadas para milhares de pe\u00e7as de fabrico, o que tamb\u00e9m reduz o custo de fabrico por pe\u00e7a.<\/li><\/ol>\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-55f66a7 elementor-widget elementor-widget-image\" data-id=\"55f66a7\" 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=\"750\" height=\"563\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/surface-finish-by-screw-rolling.jpg\" class=\"attachment-large size-large wp-image-3559\" alt=\"acabamento de superf\u00edcie criado por laminagem de parafusos\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/surface-finish-by-screw-rolling.jpg 750w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/surface-finish-by-screw-rolling-600x450.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/surface-finish-by-screw-rolling-300x225.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">acabamento de superf\u00edcie criado por laminagem de parafusos<\/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-7493669 elementor-widget elementor-widget-image\" data-id=\"7493669\" 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=\"750\" height=\"563\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/cold-rolled-surface-finish-for-lead-screw.jpg\" class=\"attachment-large size-large wp-image-3558\" alt=\"acabamento superficial laminado a frio para parafuso de chumbo\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/cold-rolled-surface-finish-for-lead-screw.jpg 750w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/cold-rolled-surface-finish-for-lead-screw-600x450.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/cold-rolled-surface-finish-for-lead-screw-300x225.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Parafuso de chumbo laminado a frio<\/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-394440e elementor-widget elementor-widget-text-editor\" data-id=\"394440e\" 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\">Desvantagem:<\/p><p style=\"padding-left: 40px;\" class=\"translation-block\">1. A precis\u00e3o do avan\u00e7o \u00e9 inferior \u00e0 de outros processos de maquinagem, mas continua a ser boa para muitas aplica\u00e7\u00f5es.<\/p><p style=\"padding-left: 40px;\" class=\"translation-block\">Ao contr\u00e1rio do torneamento ou do turbilhonamento, na laminagem de roscas, a pe\u00e7a de trabalho \u00e9 efetivamente empurrada para a frente livremente pelo enrolamento das linhas helicoidais das matrizes de rolos, a alimenta\u00e7\u00e3o da pe\u00e7a de trabalho \u00e9 menos precisa. Ao mesmo tempo, a compress\u00e3o provoca uma ligeira deforma\u00e7\u00e3o longitudinal. Mesmo que cada passo esteja 0,1% fora do normal (como 0,004mm num passo de 4mm), o que n\u00e3o parece muito, pode traduzir-se num desvio de 1mm num v\u00e3o de 1 metro.<\/p><p style=\"padding-left: 40px;\" class=\"translation-block\">2. A laminagem por parafuso s\u00f3 pode ser utilizada para a produ\u00e7\u00e3o de grandes quantidades. Devido ao custo inicial mais elevado das ferramentas e ao facto de as barras terem de ter um di\u00e2metro preciso. Por este motivo, recomenda-se a utiliza\u00e7\u00e3o dos tamanhos de roscas que o fabricante est\u00e1 atualmente a produzir.<\/p><p style=\"padding-left: 40px;\" class=\"translation-block\">3. Os ombros nas 2 extremidades (para montagem e liga\u00e7\u00e3o ao veio de acionamento) devem ser mais pequenos do que o di\u00e2metro menor do parafuso. Caso contr\u00e1rio, ficar\u00e3o ranhuras ap\u00f3s a maquinagem das 2 extremidades<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-78925c9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"78925c9\" 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-de10868\" data-id=\"de10868\" 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-2455890 elementor-widget elementor-widget-heading\" data-id=\"2455890\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Giro<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1903425 elementor-widget elementor-widget-text-editor\" data-id=\"1903425\" 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 m\u00e9todo de fabrico mais tradicional, mas eficaz, dos parafusos de chumbo \u00e9 o Turing, que utiliza uma ferramenta de corte formada com a forma dos dentes da rosca para cortar as roscas.<\/p><p class=\"translation-block\">N\u00e3o h\u00e1 limite para o tamanho dos ombros. Quando s\u00e3o maiores do que o parafuso menor do parafuso, recomenda-se a utiliza\u00e7\u00e3o de processos de torneamento ou outros para produzir o parafuso principal.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4844d20 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4844d20\" 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-5db1502\" data-id=\"5db1502\" 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-0a9d183 elementor-widget elementor-widget-heading\" data-id=\"0a9d183\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Fresagem de roscas (fresagem planet\u00e1ria de roscas)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-731f144 elementor-widget elementor-widget-text-editor\" data-id=\"731f144\" 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\">Tal como o processo de torneamento, o turbilhonamento de roscas \u00e9 outro processo de remo\u00e7\u00e3o de metal. O anel de turbilhonamento tem v\u00e1rias pontas de corte montadas no di\u00e2metro interno, roda a uma velocidade elevada e corta as roscas na barra de material (a pe\u00e7a de trabalho) que roda e avan\u00e7a (alimenta) a uma velocidade muito mais lenta. A pe\u00e7a de trabalho avan\u00e7a a uma dist\u00e2ncia de LEAD em cada rota\u00e7\u00e3o.<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-184a580 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"184a580\" 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-29495c8\" data-id=\"29495c8\" 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-25165ef elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"25165ef\" 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-3c4175b elementor-widget elementor-widget-menu-anchor\" data-id=\"3c4175b\" 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=\"inspection_method\"><\/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-4f223cf elementor-widget elementor-widget-heading\" data-id=\"4f223cf\" 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=\"Inspection_methods_for_lead_screws_and_nuts\"><\/span>M\u00e9todos de inspe\u00e7\u00e3o de parafusos e porcas de chumbo<span class=\"ez-toc-section-end\"><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-56e1bc9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"56e1bc9\" 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-44a25c1\" data-id=\"44a25c1\" 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-43a17ea elementor-widget elementor-widget-text-editor\" data-id=\"43a17ea\" 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\">Obviamente, podemos utilizar um paqu\u00edmetro ou um micr\u00f3metro para verificar o di\u00e2metro exterior das barras dos parafusos (d) ou o di\u00e2metro interior das porcas (D<sub>1<\/sub>), mas isso n\u00e3o \u00e9 certamente suficiente. Aqui est\u00e3o os dispositivos de inspe\u00e7\u00e3o e os m\u00e9todos de inspe\u00e7\u00e3o para verificar os parafusos de avan\u00e7o e as porcas:<\/p>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b07f43d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b07f43d\" 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-e766156\" data-id=\"e766156\" 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-37b27ac elementor-widget elementor-widget-heading\" data-id=\"37b27ac\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Medidores Go-No go<\/h4>\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-2370fdb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2370fdb\" 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-cbba4d5\" data-id=\"cbba4d5\" 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-2e6a3d2 elementor-widget elementor-widget-text-editor\" data-id=\"2e6a3d2\" 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 calibres go-no go podem ser utilizados para verificar os di\u00e2metros de passo (d<sub>2 <\/sub>e D<sub>2<\/sub>) tanto das barras de parafusos como das porcas. A sua utiliza\u00e7\u00e3o \u00e9 f\u00e1cil e r\u00e1pida.<\/p><p class=\"translation-block\">No entanto, n\u00e3o podemos obter um resultado quantitativo com medidores go-no go, pelo que n\u00e3o saberemos se as dimens\u00f5es se enquadram na zona optimizada. Entretanto, na pr\u00e1tica, por vezes, tanto d<sub>2 <\/sub>como D<sub>2 <\/sub>podem ser aumentados ou diminu\u00eddos de modo a que continuem a corresponder bem. Quando este \u00e9 o caso, o medidor go-no go n\u00e3o ser\u00e1 muito \u00fatil.<\/p>\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-f2663e3\" data-id=\"f2663e3\" 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-017a495 elementor-widget elementor-widget-image\" data-id=\"017a495\" 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=\"400\" height=\"248\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Go-no-go-gauges-lead-screws.jpg\" class=\"attachment-full size-full wp-image-3572\" alt=\"Medidores Go-No-Go para parafusos de avan\u00e7o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Go-no-go-gauges-lead-screws.jpg 400w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/Go-no-go-gauges-lead-screws-300x186.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Medidores \"go-no go\" para parafusos de avan\u00e7o e porcas<\/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\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d203b7c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d203b7c\" 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-c140989\" data-id=\"c140989\" 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-9ca8011 elementor-widget elementor-widget-heading\" data-id=\"9ca8011\" 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<h4 class=\"elementor-heading-title elementor-size-default\">M\u00e9todo dos 3 fios para medir o di\u00e2metro do passo<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de11f9b elementor-widget elementor-widget-text-editor\" data-id=\"de11f9b\" 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 m\u00e9todo dos 3 fios \u00e9 o m\u00e9todo de medi\u00e7\u00e3o do tipo contacto (o que significa que o dispositivo de medi\u00e7\u00e3o tem contacto direto com o objeto a medir) para verificar o di\u00e2metro do passo dos parafusos. Utiliza um <strong>micr\u00f3metro de disco<\/strong> e <strong>3 fios<\/strong> (ou chamados pinos) para efetuar a medi\u00e7\u00e3o. Estes 3 fios devem ter exatamente o mesmo di\u00e2metro. 2 fios s\u00e3o colocados num lado do parafuso, e o outro fio ser\u00e1 colocado no outro lado. Utilizando o micr\u00f3metro de disco para verificar o valor M, o di\u00e2metro do passo pode ser obtido a partir das seguintes f\u00f3rmulas:<\/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-eca4c64 elementor-widget elementor-widget-image\" data-id=\"eca4c64\" 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=\"750\" height=\"423\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-pin-inspection.jpg\" class=\"attachment-large size-large wp-image-3562\" alt=\"Inspe\u00e7\u00e3o de 3 pinos\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-pin-inspection.jpg 750w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-pin-inspection-600x338.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-pin-inspection-300x169.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\">\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-75011bc elementor-widget elementor-widget-image\" data-id=\"75011bc\" 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=\"354\" height=\"124\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-wire-method-simplified-formula.jpg\" class=\"attachment-full size-full wp-image-3537\" alt=\"F\u00f3rmula simplificada do m\u00e9todo dos 3 fios\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-wire-method-simplified-formula.jpg 354w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/3-wire-method-simplified-formula-300x105.jpg 300w\" sizes=\"(max-width: 354px) 100vw, 354px\">\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-9741562 elementor-widget elementor-widget-text-editor\" data-id=\"9741562\" 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>\u03b1: o \u00e2ngulo de flanco,<\/li><li>P: lan\u00e7amento<\/li><li>d<sub>2 <\/sub>: di\u00e2metro do passo da rosca exterior<\/li><li>d<sub>D:<\/sub>: di\u00e2metro do fio<\/li><\/ul><p class=\"translation-block\">Note-se que d<sub>D <\/sub>n\u00e3o tem de ser o valor exato calculado por esta f\u00f3rmula, desde que sejam suficientemente pr\u00f3ximos, e mais uma vez estes 3 fios t\u00eam de ter precisamente o mesmo di\u00e2metro.<\/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-200fb55 elementor-widget elementor-widget-text-editor\" data-id=\"200fb55\" 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\">Quando calculamos o valor colocando o \u00e2ngulo de flanco (\u03b1\uff09com n\u00fameros espec\u00edficos (60\u00b0\uff0c 30\u00b0 e 29\u00b0), as f\u00f3rmulas podem ser <strong>simplificadas da seguinte forma<\/strong>\uff1a<\/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-046225c elementor-widget elementor-widget-text-editor\" data-id=\"046225c\" 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 width=\"390\"><tbody><tr><td width=\"105\"><strong>\u00e2ngulo de flanco (\u03b1)<\/strong><\/td><td width=\"182\"><strong>F\u00f3rmula<\/strong><\/td><td width=\"103\">\u3000<\/td><\/tr><tr><td>60\u00b0 (n\u00e3o \u00e9 habitual)<\/td><td>M=d<sub>2<\/sub>+3d<sub>D<\/sub>-0.866P<\/td><td>d<sub>D<\/sub>=0.577P<\/td><\/tr><tr><td>30\u00b0 (m\u00e9trica ISO)<\/td><td>M=d<sub>2<\/sub>+4.864d<sub>D<\/sub>-1.886P<\/td><td>d<sub>D<\/sub>=0.518P<\/td><\/tr><tr><td>29\u00b0 (ACME)<\/td><td>M=d<sub>2<\/sub>+4.994d<sub>D<\/sub>-1.933P<\/td><td>d<sub>D<\/sub>=0.516P<\/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-b3b1ae4 elementor-widget elementor-widget-text-editor\" data-id=\"b3b1ae4\" 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\">Aqui est\u00e1 <strong>um exemplo<\/strong> para calcular a medida <strong>para Tr22*5<\/strong>:<\/p><p class=\"translation-block\">O di\u00e2metro do fio (d<sub>D<\/sub>) deve ser 0,518*5=2,59 mm, mas podemos utilizar fios de \u00d82,5 mm.<\/p><p class=\"translation-block\">Como M=d<sub>2<\/sub>+4,864d<sub>D<\/sub>-1,886P, ent\u00e3o d<sub>2<\/sub>=M-4,864d<sub>D<\/sub>+1,886P.<\/p><p class=\"translation-block\">Quando a leitura de <strong>M=22,05<\/strong>, ent\u00e3o <strong>d<sub>2<\/sub>=19,22<\/strong>.<\/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-fcd476e elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"fcd476e\" data-element_type=\"widget\" data-settings='{\"slides_to_show\":\"1\",\"navigation\":\"both\",\"autoplay\":\"yes\",\"pause_on_hover\":\"yes\",\"pause_on_interaction\":\"yes\",\"autoplay_speed\":5000,\"infinite\":\"yes\",\"effect\":\"slide\",\"speed\":500}' data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carrossel de imagens\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 de 2\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/real-example-3-pin-inspecrtion-1.jpg\" alt=\"exemplo real de inspe\u00e7\u00e3o de 3 pinos 1\"><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 de 2\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/real-example-3-pin-inspecrtion-2.jpg\" alt=\"exemplo real de inspe\u00e7\u00e3o de 3 pinos 2\"><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-left\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-right\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\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\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-c258c5b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c258c5b\" 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-4586ccc\" data-id=\"4586ccc\" 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-2df6855 elementor-widget elementor-widget-heading\" data-id=\"2df6855\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Projetor de perfil de parafuso (tamb\u00e9m conhecido como comparador \u00f3tico)<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7adca5 elementor-widget elementor-widget-text-editor\" data-id=\"b7adca5\" 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\">Este \u00e9 um instrumento de inspe\u00e7\u00e3o sem contacto, n\u00e3o podendo ser utilizado para verificar parafusos interiores. Projecta o perfil do parafuso no ecr\u00e3 com uma imagem muito maior, para que possa observar de perto o acabamento da superf\u00edcie e verificar se existem falhas, como riscos, cascas, etc. Tamb\u00e9m \u00e9 poss\u00edvel medir o di\u00e2metro exterior, o passo, o di\u00e2metro interior e o \u00e2ngulo de flanco de um parafuso exterior, mas \u00e9 necess\u00e1rio captar o perfil ponto a ponto manualmente, pelo que o processo \u00e9 bastante moroso e, por vezes, n\u00e3o \u00e9 t\u00e3o exato se n\u00e3o for utilizado corretamente.<\/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-abe0241 elementor-widget elementor-widget-text-editor\" data-id=\"abe0241\" 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\">Para que o perfil dos dentes seja projetado corretamente, o parafuso de avan\u00e7o tem de ser inclinado pelo \u00e2ngulo de h\u00e9lice (\u03b8) para que os dentes fiquem virados verticalmente para a lente da c\u00e2mara. Por este motivo, o projetor de perfil de parafuso \u00e9 um pouco diferente dos outros, na medida em que a cabe\u00e7a do projetor pode ser rodada para o \u00e2ngulo desejado em rela\u00e7\u00e3o \u00e0 mesa de trabalho.<\/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-9e7ad86 elementor-widget elementor-widget-image\" data-id=\"9e7ad86\" 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=\"750\" height=\"409\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/rotate-lead-screw-to-observe-profile.jpg\" class=\"attachment-large size-large wp-image-3546\" alt=\"\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/rotate-lead-screw-to-observe-profile.jpg 750w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/rotate-lead-screw-to-observe-profile-600x327.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/rotate-lead-screw-to-observe-profile-300x164.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">O parafuso de avan\u00e7o tem de ser rodado em \u03b8 para ficar virado para a lente.<\/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\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-35f48f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"35f48f8\" 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-68bb4c8\" data-id=\"68bb4c8\" 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-6314027 elementor-widget elementor-widget-heading\" data-id=\"6314027\" 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<h4 class=\"elementor-heading-title elementor-size-default\">Profil\u00f3metro<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4003df4 elementor-widget elementor-widget-text-editor\" data-id=\"4003df4\" 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 perfil\u00f3metro pode ser utilizado para verificar a rugosidade da superf\u00edcie e tamb\u00e9m pode ser utilizado para verificar os perfis da superf\u00edcie.<\/p><p class=\"translation-block\">Tem uma ponta de diamante que se move para cima e para baixo juntamente com o perfil quando o parafuso de amostragem se move horizontalmente. Regista o seu percurso com dados bidimensionais precisos. Estes dados tamb\u00e9m podem ser representados graficamente para visualizar o resultado da medi\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-f3efe69 elementor-widget elementor-widget-image\" data-id=\"f3efe69\" 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=\"602\" height=\"339\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspection-report-lead-screw.jpg\" class=\"attachment-large size-large wp-image-3575\" alt=\"relat\u00f3rio de inspe\u00e7\u00e3o do perfil\u00f3metro parafuso de avan\u00e7o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspection-report-lead-screw.jpg 602w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspection-report-lead-screw-600x338.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspection-report-lead-screw-300x169.jpg 300w\" sizes=\"(max-width: 602px) 100vw, 602px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Relat\u00f3rio de inspe\u00e7\u00e3o do perfil\u00f3metro para parafusos de chumbo<\/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-e1f52cd elementor-widget elementor-widget-image\" data-id=\"e1f52cd\" 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=\"337\" src=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspecting-lead-screw.jpg\" class=\"attachment-large size-large wp-image-3576\" alt=\"profil\u00f3metro para inspe\u00e7\u00e3o do parafuso de avan\u00e7o\" srcset=\"https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspecting-lead-screw.jpg 600w, https:\/\/boyanmfg.com\/wp-content\/uploads\/2022\/04\/profilometer-inspecting-lead-screw-300x169.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\">A ponta de diamante verifica o perfil dos dentes<\/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\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-eb7552b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"eb7552b\" 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-0ccd667\" data-id=\"0ccd667\" 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-17c57de elementor-widget elementor-widget-text-editor\" data-id=\"17c57de\" 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 pr\u00e1tica da oficina, as folgas entre as roscas exterior e interior s\u00e3o muitas vezes ligeiramente maiores do que as normas ISO. Isto significa que o di\u00e2metro do passo d<sub>2<\/sub> pode ser menor e D<sub>2<\/sub> pode ser maior. Al\u00e9m disso, o di\u00e2metro externo das barras roscadas (d) e o di\u00e2metro interno das porcas (D<sub>4<\/sub>) podem estar um pouco fora das toler\u00e2ncias. Afinal de contas, os di\u00e2metros dos passos s\u00e3o mais cr\u00edticos para o seu desempenho. Tudo depende do seu desempenho na aplica\u00e7\u00e3o real em termos de precis\u00e3o e vida \u00fatil. \u00c9 necess\u00e1rio manter o equil\u00edbrio entre o custo de fabrico e a qualidade, mas n\u00e3o ficar limitado \u00e0s 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-3c40890 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"3c40890\" 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-6ce9171 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ce9171\" 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-top-column elementor-element elementor-element-b021922\" data-id=\"b021922\" 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-0f45511 elementor-widget elementor-widget-text-editor\" data-id=\"0f45511\" 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\">Existem diferentes tipos de fabricantes de parafusos de chumbo no mercado, alguns deles t\u00eam equipamentos de fabrica\u00e7\u00e3o e inspe\u00e7\u00e3o de ponta e s\u00e3o bem gerenciados, enquanto outros s\u00e3o pequenas oficinas, mas <strong>seus pre\u00e7os s\u00e3o 2 a 3 vezes diferentes<\/strong>. Dependendo da quantidade que compra e dos requisitos da sua aplica\u00e7\u00e3o, n\u00e3o precisa de escolher sempre o pre\u00e7o mais elevado. A chave \u00e9 escolher as toler\u00e2ncias adequadas para cada item de controlo. Se n\u00e3o tiver muita experi\u00eancia neste dom\u00ednio, estamos aqui para o ajudar!<\/p>\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-top-column elementor-element elementor-element-536df34\" data-id=\"536df34\" 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-5683e83 elementor-align-center elementor-mobile-align-justify elementor-widget elementor-widget-button\" data-id=\"5683e83\" 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-lg\" href=\"mailto:%20info1@boyanmfg.com\">\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\">solicitar 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<\/div>","protected":false},"excerpt":{"rendered":"<p>Parafuso de Movimento: O Mecanismo Simples que Exige Conhecimentos B\u00e1sicos Quais s\u00e3o os par\u00e2metros b\u00e1sicos para o parafuso de movimento e a porca? Quais s\u00e3o os processos de fabrica\u00e7\u00e3o opcionais para o parafuso de movimento? Como inspecionar o parafuso de movimento e com que m\u00e9tricas? Estas s\u00e3o as quest\u00f5es que pode ter quando come\u00e7a a projetar uma transmiss\u00e3o por parafuso de movimento. O parafuso de movimento...&nbsp;<a href=\"https:\/\/boyanmfg.com\/pt\/lead-screw-manufactruing-inspection\/\" rel=\"bookmark\">Ler mais \u00bb<span class=\"screen-reader-text\">Tudo o que precisa de saber sobre o fabrico de parafusos de chumbo e m\u00e9todos de inspe\u00e7\u00e3o<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":3644,"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":90,"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],"tags":[],"class_list":["post-3470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-manufacturing-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/posts\/3470","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=3470"}],"version-history":[{"count":0,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/posts\/3470\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/media\/3644"}],"wp:attachment":[{"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/media?parent=3470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/categories?post=3470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boyanmfg.com\/pt\/wp-json\/wp\/v2\/tags?post=3470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}