{"id":6156,"date":"2025-04-27T07:06:36","date_gmt":"2025-04-27T07:06:36","guid":{"rendered":"https:\/\/hingesmanufacturers.com\/?p=6156"},"modified":"2026-04-14T08:00:17","modified_gmt":"2026-04-14T08:00:17","slug":"materiais-de-liga-de-zinco","status":"publish","type":"post","link":"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/","title":{"rendered":"Materiais de liga de zinco: Composi\u00e7\u00e3o, processos e utiliza\u00e7\u00f5es"},"content":{"rendered":"<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"543\" height=\"552\" src=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/1-15.png\" alt=\"zinco-liga-material-propriedades-e-aplica\u00e7\u00f5es-de-ferragens-industriais\" class=\"wp-image-6157\" style=\"width:371px;height:auto\" srcset=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/1-15.png 543w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/1-15-295x300.png 295w\" sizes=\"auto, (max-width: 543px) 100vw, 543px\" \/><\/figure>\n\n\n\n<p>A liga de zinco \u00e9 um grupo de materiais de engenharia \u00e0 base de zinco, normalmente utilizados em hardware industrial fundido sob press\u00e3o, devido \u00e0 sua boa capacidade de fundi\u00e7\u00e3o, estabilidade dimensional, compatibilidade de acabamento de superf\u00edcie e efici\u00eancia de custos. No desenvolvimento pr\u00e1tico de produtos, a liga de zinco \u00e9 amplamente utilizada para <a href=\"https:\/\/hingesmanufacturers.com\/pt\/produtos\/dobradicas\/dobradicas-de-zinco\/\">dobradi\u00e7as<\/a>, <a href=\"https:\/\/hingesmanufacturers.com\/pt\/produtos\/puxadores\/pegas-em-liga-de-zinco\/\">pegas<\/a>e <a href=\"https:\/\/hingesmanufacturers.com\/pt\/produtos\/trincos\/fechos-de-portas\/fechos-de-porta-de-congelador-em-liga-de-zinco-a13\/\">trincos<\/a> quando s\u00e3o necess\u00e1rias formas complexas, produ\u00e7\u00e3o em massa consistente e tratamentos de superf\u00edcie decorativos ou protectores.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\" style=\"cursor:inherit\">\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' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#What_Is_Zinc_Alloy\" >O que \u00e9 a liga de zinco?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Why_Zinc_Alloy_Is_Used_in_Industrial_Hardware\" >Porque \u00e9 que a liga de zinco \u00e9 utilizada no hardware industrial<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Composition_and_Classification_of_Zinc_Alloys\" >Composi\u00e7\u00e3o e classifica\u00e7\u00e3o das ligas de zinco<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Physical_and_Mechanical_Properties_of_Zinc_Alloy\" >Propriedades f\u00edsicas e mec\u00e2nicas da liga de zinco<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Zinc_Alloy_Processing_Methods\" >M\u00e9todos de processamento de ligas de zinco<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Surface_Treatment_and_Corrosion_Performance\" >Tratamento de superf\u00edcie e desempenho de corros\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Zinc_Alloy_vs_Other_Common_Hardware_Materials\" >Liga de zinco versus outros materiais de hardware comuns<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Design_and_Selection_Guide_for_Zinc_Alloy_Parts\" >Guia de conce\u00e7\u00e3o e sele\u00e7\u00e3o de pe\u00e7as em liga de zinco<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Typical_Applications_of_Zinc_Alloy_in_Industrial_Hardware\" >Aplica\u00e7\u00f5es t\u00edpicas da liga de zinco em hardware industrial<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#How_to_Choose_Zinc_Alloy_for_Hinges_Handles_and_Latches\" >Como escolher a liga de zinco para dobradi\u00e7as, puxadores e trincos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#FAQ\" >FAQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blog\/zinc-alloy-materials\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<p>Em compara\u00e7\u00e3o com muitos outros materiais de ferragens, a liga de zinco oferece um baixo ponto de fus\u00e3o, um desempenho eficiente de fundi\u00e7\u00e3o sob press\u00e3o, uma boa maquinabilidade para opera\u00e7\u00f5es secund\u00e1rias e uma forte compatibilidade com processos de revestimento e galvaniza\u00e7\u00e3o. No entanto, o grau correto, o tratamento de superf\u00edcie e o ambiente de aplica\u00e7\u00e3o devem ser cuidadosamente selecionados. Este guia explica a composi\u00e7\u00e3o da liga de zinco, graus, propriedades, tratamentos de superf\u00edcie e como a liga de zinco \u00e9 utilizada em produtos de hardware industrial.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-zinc-alloy\"><span class=\"ez-toc-section\" id=\"What_Is_Zinc_Alloy\"><\/span>O que \u00e9 a liga de zinco?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A liga de zinco \u00e9 um material met\u00e1lico baseado principalmente no zinco e ligado a elementos como o alum\u00ednio, o cobre e o magn\u00e9sio para melhorar a for\u00e7a, a capacidade de fundi\u00e7\u00e3o, a resist\u00eancia ao desgaste e o desempenho geral. No fabrico industrial, a liga de zinco \u00e9 mais frequentemente associada a pe\u00e7as fundidas sob press\u00e3o que requerem dimens\u00f5es precisas, sec\u00e7\u00f5es de parede relativamente finas e produ\u00e7\u00e3o eficiente de grandes volumes.<\/p>\n\n\n\n<p>Para os fabricantes de ferragens industriais, a liga de zinco \u00e9 especialmente \u00fatil quando uma pe\u00e7a precisa de combinar fun\u00e7\u00e3o estrutural com qualidade de apar\u00eancia. \u00c9 por isso que \u00e9 habitualmente utilizada em ferragens decorativas e funcionais, tais como acess\u00f3rios para arm\u00e1rios, puxadores, corpos de dobradi\u00e7as, componentes de trincos e acess\u00f3rios para fechaduras.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-zinc-alloy-is-used-in-industrial-hardware\"><span class=\"ez-toc-section\" id=\"Why_Zinc_Alloy_Is_Used_in_Industrial_Hardware\"><\/span>Porque \u00e9 que a liga de zinco \u00e9 utilizada no hardware industrial<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bom desempenho de fundi\u00e7\u00e3o sob press\u00e3o:<\/strong> A liga de zinco flui bem nos moldes e suporta geometrias de pe\u00e7as complexas.<\/li>\n\n\n\n<li><strong>Coer\u00eancia dimensional:<\/strong> \u00c9 adequado para a produ\u00e7\u00e3o repetida de pe\u00e7as de hardware com requisitos de toler\u00e2ncia apertados.<\/li>\n\n\n\n<li><strong>Flexibilidade do acabamento da superf\u00edcie:<\/strong> Funciona bem com cromagem, niquelagem, revestimento em p\u00f3 e outros acabamentos decorativos ou protectores.<\/li>\n\n\n\n<li><strong>Equil\u00edbrio entre custo e desempenho:<\/strong> Em muitas aplica\u00e7\u00f5es de hardware, a liga de zinco oferece um meio-termo pr\u00e1tico entre custo, resist\u00eancia e efici\u00eancia de produ\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong>Adequado para ferragens de carga m\u00e9dia:<\/strong> \u00c9 frequentemente utilizado quando a pe\u00e7a necessita de mais rigidez do que o pl\u00e1stico, mas n\u00e3o requer a margem estrutural total do a\u00e7o inoxid\u00e1vel.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"458\" height=\"464\" src=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/2-8.jpg\" alt=\"material de hardware para fundi\u00e7\u00e3o injectada de liga de zinco\" class=\"wp-image-6158\" style=\"width:370px;height:auto\" srcset=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/2-8.jpg 458w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/2-8-296x300.jpg 296w\" sizes=\"auto, (max-width: 458px) 100vw, 458px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"composition-and-classification-of-zinc-alloys\"><span class=\"ez-toc-section\" id=\"Composition_and_Classification_of_Zinc_Alloys\"><\/span>Composi\u00e7\u00e3o e classifica\u00e7\u00e3o das ligas de zinco<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"core-elements-and-their-role\">Elementos essenciais e sua fun\u00e7\u00e3o<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Elemento<\/th><th>Papel t\u00edpico na liga<\/th><\/tr><\/thead><tbody><tr><td>Alum\u00ednio (Al)<\/td><td>Melhora a resist\u00eancia, a dureza, a fluidez e o desempenho da fundi\u00e7\u00e3o.<\/td><\/tr><tr><td>Cobre (Cu)<\/td><td>Aumenta a for\u00e7a e a resist\u00eancia ao desgaste, mas o excesso de cobre pode reduzir a ductilidade.<\/td><\/tr><tr><td>Magn\u00e9sio (Mg)<\/td><td>Utilizado em pequenas quantidades para o refinamento do gr\u00e3o e estabilidade geral da liga.<\/td><\/tr><tr><td>N\u00edquel (Ni)<\/td><td>Utilizado em algumas qualidades para melhorar o comportamento \u00e0 corros\u00e3o e o desempenho relacionado com a pureza.<\/td><\/tr><tr><td>Oligoelementos<\/td><td>Ajudam a controlar as impurezas e influenciam a capacidade de fundi\u00e7\u00e3o ou a estabilidade a longo prazo.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"common-zinc-alloy-grades\">Graus comuns de liga de zinco<\/h3>\n\n\n\n<p>No fabrico de hardware, as fam\u00edlias mais comuns de ligas de zinco s\u00e3o as seguintes <strong>Zamak<\/strong> e a s\u00e9rie <strong>ZA<\/strong> s\u00e9rie. A classe correta deve ser selecionada com base na complexidade da fundi\u00e7\u00e3o, nos requisitos de resist\u00eancia, nos requisitos de acabamento e no ambiente de servi\u00e7o.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>S\u00e9rie<\/th><th>Grau de representatividade<\/th><th>Carater\u00edstica principal<\/th><th>Utiliza\u00e7\u00e3o t\u00edpica de hardware<\/th><\/tr><\/thead><tbody><tr><td>Zamak<\/td><td>Zamak 3<\/td><td>Desempenho geral equilibrado, amplamente utilizado, comportamento de fundi\u00e7\u00e3o est\u00e1vel<\/td><td>Pe\u00e7as de ferragens gerais, puxadores, corpos de dobradi\u00e7as, acess\u00f3rios decorativos<\/td><\/tr><tr><td>Zamak<\/td><td>Zamak 5<\/td><td>Maior resist\u00eancia e dureza do que o Zamak 3<\/td><td>Hardware que requer um desempenho mec\u00e2nico ligeiramente superior<\/td><\/tr><tr><td>Zamak<\/td><td>Zamak 2<\/td><td>Maior resist\u00eancia ao desgaste e for\u00e7a, menor ductilidade<\/td><td>Pe\u00e7as de desgaste e acess\u00f3rios estruturais mais exigentes<\/td><\/tr><tr><td>Zamak<\/td><td>Zamak 7<\/td><td>Maior pureza e melhor comportamento em termos de corros\u00e3o<\/td><td>Ferragens decorativas e pe\u00e7as fundidas sens\u00edveis \u00e0 qualidade<\/td><\/tr><tr><td>S\u00e9rie ZA<\/td><td>ZA-8<\/td><td>Boa tenacidade e maior potencial de resist\u00eancia<\/td><td>Componentes fundidos para trabalhos mais pesados<\/td><\/tr><tr><td>S\u00e9rie ZA<\/td><td>ZA-12<\/td><td>Propriedades mec\u00e2nicas melhoradas para pe\u00e7as fundidas mais resistentes<\/td><td>Componentes met\u00e1licos de carga mais elevada<\/td><\/tr><tr><td>S\u00e9rie ZA<\/td><td>ZA-27<\/td><td>Resist\u00eancia muito elevada, mas mais exigente em termos de processamento<\/td><td>Pe\u00e7as especializadas de alta resist\u00eancia<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"physical-and-mechanical-properties-of-zinc-alloy\"><span class=\"ez-toc-section\" id=\"Physical_and_Mechanical_Properties_of_Zinc_Alloy\"><\/span>Propriedades f\u00edsicas e mec\u00e2nicas da liga de zinco<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A liga de zinco \u00e9 amplamente selecionada porque fornece um equil\u00edbrio \u00fatil de processabilidade, qualidade de superf\u00edcie e desempenho mec\u00e2nico para hardware fundido sob press\u00e3o. Os valores exactos variam consoante a qualidade, o processo e a geometria da pe\u00e7a, mas as seguintes carater\u00edsticas s\u00e3o t\u00edpicas em discuss\u00f5es de design industrial.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"mechanical-properties\">Propriedades mec\u00e2nicas<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A resist\u00eancia \u00e0 tra\u00e7\u00e3o situa-se normalmente na gama adequada para aplica\u00e7\u00f5es de ferragens m\u00e9dias.<\/li>\n\n\n\n<li>A dureza \u00e9 geralmente suficiente para acess\u00f3rios de arm\u00e1rios, corpos de ferragens e componentes de pegas.<\/li>\n\n\n\n<li>O alongamento e a ductilidade dependem da fam\u00edlia da liga e do n\u00edvel de cobre, o que afecta a toler\u00e2ncia ao impacto e o risco de fissura\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"thermal-and-process-properties\">Propriedades t\u00e9rmicas e de processo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O baixo ponto de fus\u00e3o permite uma fundi\u00e7\u00e3o eficiente e ciclos de produ\u00e7\u00e3o mais curtos em compara\u00e7\u00e3o com alguns metais de temperatura mais elevada.<\/li>\n\n\n\n<li>Uma boa fluidez ajuda a preencher moldes com detalhes de formas complexas.<\/li>\n\n\n\n<li>A expans\u00e3o t\u00e9rmica deve ainda ser considerada ao projetar sistemas de hardware montados com requisitos de ajuste apertados.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"magnetic-and-electrical-characteristics\">Carater\u00edsticas magn\u00e9ticas e el\u00e9ctricas<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A liga de zinco n\u00e3o \u00e9 magn\u00e9tica, o que pode ser \u00fatil em algumas aplica\u00e7\u00f5es de equipamento e hardware relacionado com a eletr\u00f3nica.<\/li>\n\n\n\n<li>A sua condutividade el\u00e9ctrica \u00e9 inferior \u00e0 do cobre, mas continua a ser relevante em algumas pe\u00e7as relacionadas com arm\u00e1rios e conectores.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"455\" height=\"451\" src=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/3-5.png\" alt=\"propriedades mec\u00e2nicas e de transforma\u00e7\u00e3o da liga de zinco\" class=\"wp-image-6159\" style=\"width:368px;height:auto\" srcset=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/3-5.png 455w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/3-5-300x297.png 300w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/3-5-150x150.png 150w\" sizes=\"auto, (max-width: 455px) 100vw, 455px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"zinc-alloy-processing-methods\"><span class=\"ez-toc-section\" id=\"Zinc_Alloy_Processing_Methods\"><\/span>M\u00e9todos de processamento de ligas de zinco<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"die-casting\">Fundi\u00e7\u00e3o injectada<\/h3>\n\n\n\n<p>A fundi\u00e7\u00e3o injectada \u00e9 o processo mais comum para as ferragens em liga de zinco. Permite aos fabricantes produzir pe\u00e7as precisas e repet\u00edveis com geometria complexa e bom acabamento superficial. Esta \u00e9 uma das principais raz\u00f5es pelas quais a liga de zinco \u00e9 t\u00e3o comum em pegas, dobradi\u00e7as, pe\u00e7as de trinco e acess\u00f3rios para arm\u00e1rios.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Suporta paredes finas e geometria detalhada.<\/li>\n\n\n\n<li>Adequado para a produ\u00e7\u00e3o de hardware de grande volume.<\/li>\n\n\n\n<li>Reduz a necessidade de maquina\u00e7\u00e3o extensiva em muitas pe\u00e7as.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"machining-and-secondary-operations\">Maquina\u00e7\u00e3o e opera\u00e7\u00f5es secund\u00e1rias<\/h3>\n\n\n\n<p>As pe\u00e7as em liga de zinco podem ainda necessitar de maquinagem, roscagem, aparagem, polimento ou montagem ap\u00f3s a fundi\u00e7\u00e3o. O processamento secund\u00e1rio deve ser considerado durante o projeto para garantir que a pe\u00e7a final cumpre os requisitos de toler\u00e2ncia, acabamento e montagem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"design-limits-in-processing\">Limites de conce\u00e7\u00e3o no processamento<\/h3>\n\n\n\n<p>Embora a liga de zinco seja f\u00e1cil de fundir, continua a ter limita\u00e7\u00f5es. Os projectistas devem evitar varia\u00e7\u00f5es extremas da espessura da parede, elementos finos mal suportados ou geometria da pe\u00e7a que crie riscos evit\u00e1veis de retra\u00e7\u00e3o, porosidade ou fissura\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"surface-treatment-and-corrosion-performance\"><span class=\"ez-toc-section\" id=\"Surface_Treatment_and_Corrosion_Performance\"><\/span>Tratamento de superf\u00edcie e desempenho de corros\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Uma das maiores vantagens da liga de zinco na produ\u00e7\u00e3o de ferragens \u00e9 a sua compatibilidade com muitos processos de acabamento de superf\u00edcies. Em aplica\u00e7\u00f5es reais, o desempenho da corros\u00e3o depende n\u00e3o s\u00f3 da liga de base, mas tamb\u00e9m da qualidade do acabamento, da espessura do acabamento, do ambiente de servi\u00e7o e das condi\u00e7\u00f5es de manuten\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"common-surface-treatments\">Tratamentos de superf\u00edcie comuns<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tratamento de superf\u00edcie<\/th><th>Benef\u00edcio principal<\/th><th>Utiliza\u00e7\u00e3o t\u00edpica<\/th><\/tr><\/thead><tbody><tr><td>Cromagem<\/td><td>Acabamento decorativo com forte apelo visual e prote\u00e7\u00e3o adicional da superf\u00edcie<\/td><td>Ferragens vis\u00edveis, puxadores decorativos, acess\u00f3rios de qualidade superior<\/td><\/tr><tr><td>Niquelagem<\/td><td>Aspeto equilibrado e resist\u00eancia \u00e0 corros\u00e3o<\/td><td>Ferragens industriais e decorativas em geral<\/td><\/tr><tr><td>Revestimento em p\u00f3<\/td><td>Boa cobertura da superf\u00edcie e flexibilidade da cor<\/td><td>Ferragens industriais com necessidades de personaliza\u00e7\u00e3o de acabamentos<\/td><\/tr><tr><td>Revestimento electrofor\u00e9tico<\/td><td>Revestimento uniforme para aplica\u00e7\u00f5es de prote\u00e7\u00e3o<\/td><td>Hardware com necessidades moderadas de prote\u00e7\u00e3o contra a corros\u00e3o<\/td><\/tr><tr><td>Sistemas de revestimento ep\u00f3xi ou de prote\u00e7\u00e3o<\/td><td>Prote\u00e7\u00e3o ambiental adicional<\/td><td>Componentes industriais ou de arm\u00e1rios selecionados<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-think-about-corrosion-resistance\">Como pensar na resist\u00eancia \u00e0 corros\u00e3o<\/h3>\n\n\n\n<p>A liga de zinco \u00e9 muitas vezes adequada para hardware de interior ou moderadamente exposto, especialmente quando \u00e9 aplicado um bom tratamento de superf\u00edcie. No entanto, para ambientes exteriores severos, mar\u00edtimos, qu\u00edmicos ou de lavagem, o a\u00e7o inoxid\u00e1vel pode continuar a ser a escolha mais segura a longo prazo. Se estiver a comparar estrat\u00e9gias de materiais para produtos de ferragens, consulte a nossa <a href=\"https:\/\/hingesmanufacturers.com\/pt\/blogue\/dobradicas-de-liga-de-zinco-vs-aco-inoxidavel\/\">dobradi\u00e7as de liga de zinco vs a\u00e7o inoxid\u00e1vel<\/a> guia.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"658\" height=\"608\" src=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/4-3.png\" alt=\"tratamento de superf\u00edcies e prote\u00e7\u00e3o contra a corros\u00e3o de ligas de zinco\" class=\"wp-image-6160\" style=\"width:340px;height:auto\" srcset=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/4-3.png 658w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/4-3-300x277.png 300w\" sizes=\"auto, (max-width: 658px) 100vw, 658px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"zinc-alloy-vs-other-common-hardware-materials\"><span class=\"ez-toc-section\" id=\"Zinc_Alloy_vs_Other_Common_Hardware_Materials\"><\/span>Liga de zinco versus outros materiais de hardware comuns<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Material<\/th><th>Vantagem principal<\/th><th>Limita\u00e7\u00e3o principal<\/th><th>Utiliza\u00e7\u00e3o t\u00edpica em hardware<\/th><\/tr><\/thead><tbody><tr><td>Liga de zinco<\/td><td>Excelente efici\u00eancia de fundi\u00e7\u00e3o sob press\u00e3o e flexibilidade de acabamento<\/td><td>Menos adequado do que o a\u00e7o inoxid\u00e1vel para condi\u00e7\u00f5es de corros\u00e3o severas<\/td><td>Puxadores, corpos de dobradi\u00e7as, pe\u00e7as de trinco, ferragens decorativas<\/td><\/tr><tr><td>A\u00e7o inoxid\u00e1vel<\/td><td>Maior resist\u00eancia \u00e0 corros\u00e3o e maior fiabilidade a longo prazo<\/td><td>Maior custo de material e de processamento<\/td><td>Dobradi\u00e7as para exteriores, equipamento higi\u00e9nico, ferragens para trabalhos pesados<\/td><\/tr><tr><td>Liga de alum\u00ednio<\/td><td>Mais leve<\/td><td>Diferentes equil\u00edbrios de resist\u00eancia e desgaste consoante a liga e a conce\u00e7\u00e3o<\/td><td>Acess\u00f3rios e pe\u00e7as de equipamento sens\u00edveis ao peso<\/td><\/tr><tr><td>Pl\u00e1stico de engenharia<\/td><td>Baixo peso e custo<\/td><td>Desempenho estrutural e resist\u00eancia ao calor inferiores<\/td><td>Coberturas ligeiras e componentes n\u00e3o estruturais<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A liga de zinco \u00e9 frequentemente escolhida quando os fabricantes necessitam de uma pe\u00e7a met\u00e1lica fundida sob press\u00e3o econ\u00f3mica com uma qualidade de produ\u00e7\u00e3o est\u00e1vel e boas op\u00e7\u00f5es de acabamento. O a\u00e7o inoxid\u00e1vel \u00e9 normalmente preferido quando a resist\u00eancia \u00e0 corros\u00e3o e a fiabilidade estrutural s\u00e3o a primeira prioridade.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"design-and-selection-guide-for-zinc-alloy-parts\"><span class=\"ez-toc-section\" id=\"Design_and_Selection_Guide_for_Zinc_Alloy_Parts\"><\/span>Guia de conce\u00e7\u00e3o e sele\u00e7\u00e3o de pe\u00e7as em liga de zinco<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"structural-design-principles\">Princ\u00edpios de conce\u00e7\u00e3o estrutural<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utilizar uma espessura de parede relativamente uniforme para reduzir o risco de contra\u00e7\u00e3o e distor\u00e7\u00e3o.<\/li>\n\n\n\n<li>Utilizar raios adequados para reduzir a concentra\u00e7\u00e3o de tens\u00f5es.<\/li>\n\n\n\n<li>Considerar as cargas de montagem, as cargas dos fixadores e o ambiente de utiliza\u00e7\u00e3o real em vez de considerar apenas a forma da pe\u00e7a.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cost-and-performance-balance\">Equil\u00edbrio entre custos e desempenho<\/h3>\n\n\n\n<p>Para muitos produtos de hardware industrial, o Zamak 3 \u00e9 um ponto de partida pr\u00e1tico porque equilibra a estabilidade da fundi\u00e7\u00e3o, o custo e o desempenho mec\u00e2nico geral. Zamak 5 ou fam\u00edlias de ligas mais fortes podem ser preferidas quando a aplica\u00e7\u00e3o exige mais for\u00e7a ou resist\u00eancia ao desgaste.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-to-check-before-final-material-selection\">O que deve ser verificado antes da sele\u00e7\u00e3o final do material<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carga prevista e n\u00edvel de stress<\/li>\n\n\n\n<li>Exposi\u00e7\u00e3o no interior ou no exterior<\/li>\n\n\n\n<li>Risco de corros\u00e3o e requisitos de acabamento<\/li>\n\n\n\n<li>Requisitos de apar\u00eancia<\/li>\n\n\n\n<li>Quantidade de produ\u00e7\u00e3o e estrat\u00e9gia de ferramentas<\/li>\n\n\n\n<li>Se o a\u00e7o inoxid\u00e1vel ou o alum\u00ednio seriam mais adequados para o ambiente de utiliza\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"typical-applications-of-zinc-alloy-in-industrial-hardware\"><span class=\"ez-toc-section\" id=\"Typical_Applications_of_Zinc_Alloy_in_Industrial_Hardware\"><\/span>Aplica\u00e7\u00f5es t\u00edpicas da liga de zinco em hardware industrial<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A liga de zinco \u00e9 utilizada em muitas ind\u00fastrias, mas neste s\u00edtio as aplica\u00e7\u00f5es mais relevantes s\u00e3o hardware e produtos relacionados com arm\u00e1rios, onde a fundi\u00e7\u00e3o sob press\u00e3o e a flexibilidade de acabamento s\u00e3o importantes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hinges\">Dobradi\u00e7as<\/h3>\n\n\n\n<p>A liga de zinco \u00e9 normalmente utilizada em determinados corpos de dobradi\u00e7as e componentes decorativos de dobradi\u00e7as em que o aspeto, a capacidade de fundi\u00e7\u00e3o e a carga estrutural moderada s\u00e3o importantes. Para ambientes mais agressivos, comparar com <a href=\"https:\/\/hingesmanufacturers.com\/pt\/produtos\/dobradicas\/dobradicas-em-aco-inoxidavel\/\">dobradi\u00e7as em a\u00e7o inoxid\u00e1vel<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"handles\">Pegas<\/h3>\n\n\n\n<p>A liga de zinco \u00e9 amplamente utilizada em puxadores e puxadores de arm\u00e1rios porque permite um design de formas complexas e v\u00e1rias op\u00e7\u00f5es de acabamento. Ver a nossa <a href=\"https:\/\/hingesmanufacturers.com\/pt\/produtos\/puxadores\/pegas-em-liga-de-zinco\/\">pegas em liga de zinco<\/a> para exemplos t\u00edpicos de produtos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"latches-and-locking-parts\">Trincos e pe\u00e7as de fecho<\/h3>\n\n\n\n<p>A liga de zinco \u00e9 tamb\u00e9m comum em caixas de trinco, acess\u00f3rios de fechadura e componentes selecionados de fecho de arm\u00e1rios, em que a precis\u00e3o da fundi\u00e7\u00e3o e o acabamento visual s\u00e3o ambos importantes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"decorative-and-functional-fittings\">Acess\u00f3rios decorativos e funcionais<\/h3>\n\n\n\n<p>Devido \u00e0 sua flexibilidade de acabamento, a liga de zinco \u00e9 frequentemente selecionada para ferragens que necessitam tanto de utilidade estrutural como de apar\u00eancia superficial, incluindo acess\u00f3rios de arm\u00e1rios vis\u00edveis, ferragens de puxar e acess\u00f3rios de equipamento.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"458\" height=\"582\" src=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/6-4.png\" alt=\"aplica\u00e7\u00f5es de liga de zinco em hardware industrial\" class=\"wp-image-6161\" style=\"width:308px;height:auto\" srcset=\"https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/6-4.png 458w, https:\/\/hingesmanufacturers.com\/wp-content\/uploads\/2025\/04\/6-4-236x300.png 236w\" sizes=\"auto, (max-width: 458px) 100vw, 458px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-choose-zinc-alloy-for-hinges-handles-and-latches\"><span class=\"ez-toc-section\" id=\"How_to_Choose_Zinc_Alloy_for_Hinges_Handles_and_Latches\"><\/span>Como escolher a liga de zinco para dobradi\u00e7as, puxadores e trincos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Para ferragens decorativas vis\u00edveis:<\/strong> dar prioridade \u00e0 qualidade da fundi\u00e7\u00e3o e \u00e0 compatibilidade do tratamento de superf\u00edcie.<\/li>\n\n\n\n<li><strong>Para hardware de carga m\u00e9dia:<\/strong> verificar o tipo de liga, a espessura da parede e a conce\u00e7\u00e3o da montagem.<\/li>\n\n\n\n<li><strong>Para ambientes corrosivos:<\/strong> avaliar se a prote\u00e7\u00e3o do acabamento \u00e9 suficiente ou se o a\u00e7o inoxid\u00e1vel \u00e9 a melhor op\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong>Para produ\u00e7\u00e3o OEM:<\/strong> analisar conjuntamente o custo das ferramentas, o volume, os requisitos de acabamento e as necessidades de maquinagem a jusante.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1776153510953\"><strong class=\"schema-faq-question\">P: Qual \u00e9 o tipo de liga de zinco mais comum para ferragens?<\/strong> <p class=\"schema-faq-answer\">R: O Zamak 3 \u00e9 um dos tipos mais comuns porque proporciona um equil\u00edbrio pr\u00e1tico entre a capacidade de fundi\u00e7\u00e3o, o custo e o desempenho mec\u00e2nico geral para pe\u00e7as de hardware.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1776153521336\"><strong class=\"schema-faq-question\">P: A liga de zinco \u00e9 boa para dobradi\u00e7as?<\/strong> <p class=\"schema-faq-answer\">R: A liga de zinco pode ser adequada para determinados corpos de dobradi\u00e7as e acess\u00f3rios de ferragens, especialmente em ambientes interiores ou moderadamente expostos. Para uma maior exposi\u00e7\u00e3o \u00e0 corros\u00e3o ou aplica\u00e7\u00f5es mais pesadas, o a\u00e7o inoxid\u00e1vel pode ser a escolha mais segura.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1776153531759\"><strong class=\"schema-faq-question\">Q: A liga de zinco \u00e9 melhor do que o a\u00e7o inoxid\u00e1vel?<\/strong> <p class=\"schema-faq-answer\">R: N\u00e3o universalmente. A liga de zinco \u00e9 frequentemente melhor para a efici\u00eancia da fundi\u00e7\u00e3o sob press\u00e3o, flexibilidade de acabamento e produ\u00e7\u00e3o de hardware sens\u00edvel ao custo. O a\u00e7o inoxid\u00e1vel \u00e9 normalmente melhor para uma maior resist\u00eancia \u00e0 corros\u00e3o e condi\u00e7\u00f5es de servi\u00e7o estrutural mais exigentes.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1776153542311\"><strong class=\"schema-faq-question\">P: A liga de zinco pode enferrujar?<\/strong> <p class=\"schema-faq-answer\">R: A liga de zinco n\u00e3o se comporta exatamente como o a\u00e7o-carbono, mas pode ainda corroer ou degradar-se em ambientes agressivos, especialmente se o acabamento de prote\u00e7\u00e3o estiver danificado ou se o ambiente de aplica\u00e7\u00e3o for severo.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1776153554815\"><strong class=\"schema-faq-question\">P: Que tratamentos de superf\u00edcie s\u00e3o normalmente utilizados em ferragens de liga de zinco?<\/strong> <p class=\"schema-faq-answer\">R: Os tratamentos comuns incluem cromagem, niquelagem, revestimento em p\u00f3 e revestimento electrofor\u00e9tico, dependendo do aspeto, da prote\u00e7\u00e3o contra a corros\u00e3o e dos requisitos de custo.<\/p> <\/div> <\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclus\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A liga de zinco \u00e9 um material importante no fabrico de ferragens industriais porque combina fundi\u00e7\u00e3o eficiente, boa compatibilidade de acabamento e desempenho mec\u00e2nico pr\u00e1tico para muitas aplica\u00e7\u00f5es m\u00e9dias. \u00c9 especialmente valiosa na produ\u00e7\u00e3o de dobradi\u00e7as, pegas, trincos e acess\u00f3rios para arm\u00e1rios, onde a forma consistente, a repetibilidade e o aspeto da superf\u00edcie s\u00e3o importantes.<\/p>\n\n\n\n<p>O tipo correto de liga de zinco deve ser sempre selecionado com base na carga, requisitos de acabamento, ambiente e m\u00e9todo de produ\u00e7\u00e3o. Quando utilizada de forma adequada, a liga de zinco continua a ser uma escolha de material muito pr\u00e1tica para a conce\u00e7\u00e3o e fabrico de hardware industrial moderno.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Zinc alloy is a group of zinc-based engineering materials commonly used in die-cast industrial hardware because of their good castability, dimensional stability, surface finish compatibility, and cost efficiency. In practical product development, zinc alloy is widely used for hinges, handles, and latches where complex shapes, consistent mass production, and decorative or protective surface treatments are [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6159,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-6156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Zinc Alloy Materials: Full Breakdown of Composition, Processes, and Uses - HTAN<\/title>\n<meta name=\"description\" content=\"Zinc alloy offer low melting point, strength, corrosion resistance and versatility; Zamak\/ZA series meet diverse industrial needs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hingesmanufacturers.com\/pt\/blogue\/materiais-de-liga-de-zinco\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zinc Alloy Materials: Full Breakdown of Composition, Processes, and Uses - HTAN\" \/>\n<meta property=\"og:description\" content=\"Zinc alloy offer low melting point, strength, corrosion resistance and versatility; 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Trabalho no sector das dobradi\u00e7as industriais h\u00e1 10 anos! Ao longo deste percurso, tive a oportunidade de trabalhar com mais de 2.000 clientes de 55 pa\u00edses, concebendo e produzindo dobradi\u00e7as para todos os tipos de portas de equipamento. Crescemos em conjunto com os nossos clientes, aprendemos muito e ganh\u00e1mos uma experi\u00eancia valiosa. 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