{"id":46060,"date":"2026-04-13T05:20:00","date_gmt":"2026-04-13T05:20:00","guid":{"rendered":"https:\/\/www.cnshining.com\/?p=46060"},"modified":"2026-04-10T08:47:22","modified_gmt":"2026-04-10T08:47:22","slug":"selecao-de-material-para-junta-de-aerossol-fea-641","status":"publish","type":"post","link":"https:\/\/www.cnshining.com\/pt\/selecao-de-material-para-junta-de-aerossol-fea-641-html","title":{"rendered":"FEA 641: Juntas de Aerossol \u2013 Teste para Sele\u00e7\u00e3o de Material"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Vis\u00e3o geral padr\u00e3o<\/h2>\n\n\n\n<p>A FEA 641 \u00e9 uma norma do setor emitida pela&nbsp;<strong>Federa\u00e7\u00e3o Europeia de Aeross\u00f3is (FEA)<\/strong>&nbsp;que define um&nbsp;<strong>teste de incha\u00e7o em laborat\u00f3rio<\/strong>&nbsp;usado para o&nbsp;<strong>Sele\u00e7\u00e3o de materiais para juntas de v\u00e1lvulas de aerossol<\/strong>.<\/p>\n\n\n\n<p>A norma se concentra exclusivamente em&nbsp;<strong>comportamento dimensional de materiais de juntas<\/strong>&nbsp;Ao ser exposto a uma formula\u00e7\u00e3o completa em aerossol, \u00e9 importante reconhecer que a intera\u00e7\u00e3o qu\u00edmica entre a junta e o produto \u00e9 uma das causas mais frequentes de vazamento em v\u00e1lvulas.<\/p>\n\n\n\n<style>\n  body {\n    margin: auto;\n    font-family: Arial, Helvetica, sans-serif;\n    line-height: 1.7;\n    color: #222;\n  }\n  figure {\n    margin: 34px 0;\n    text-align: center;\n  }\n  figcaption {\n    font-size: 14px;\n    color: #555;\n    margin-top: 6px;\n  }\n  .note {\n    background: #e8f2ff;\n    padding: 14px;\n    border-left: 4px solid #0b5ed7;\n    margin: 24px 0;\n    border-radius:10px;\n    font-style: italic;\n  }\nbuttons {\n  background-color: #0b5ed7; \n  color: #ffffff; \n}\n<\/style>\n<div class=\"note\">\n<strong>Principal conclus\u00e3o:<\/strong> Uma junta que veda perfeitamente quando seca pode falhar completamente ap\u00f3s exposi\u00e7\u00e3o ao produto.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Por que o teste de expans\u00e3o da junta \u00e9 crucial<\/h2>\n\n\n\n<p>As juntas de v\u00e1lvulas s\u00e3o materiais \u00e0 base de pol\u00edmeros que cont\u00eam cargas, plastificantes e sistemas de cura. Quando em contato com uma formula\u00e7\u00e3o em aerossol, elas podem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Incha\u00e7o devido \u00e0 absor\u00e7\u00e3o de solventes ou propelentes.<\/li>\n\n\n\n<li>Encolhimento devido \u00e0 extra\u00e7\u00e3o de plastificantes<\/li>\n\n\n\n<li>Sofrer altera\u00e7\u00f5es irrevers\u00edveis nas propriedades mec\u00e2nicas.<\/li>\n<\/ul>\n\n\n\n<p>Essas altera\u00e7\u00f5es afetam:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For\u00e7a de veda\u00e7\u00e3o<\/li>\n\n\n\n<li>comportamento de atua\u00e7\u00e3o da v\u00e1lvula<\/li>\n\n\n\n<li>Desempenho de vazamento a longo prazo<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Escopo da FEA 641<\/h2>\n\n\n\n<p>A FEA 641 aborda os seguintes t\u00f3picos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Procedimento de teste de incha\u00e7o<\/li>\n\n\n\n<li>Avalia\u00e7\u00e3o do comportamento de equil\u00edbrio<\/li>\n\n\n\n<li>Classifica\u00e7\u00e3o e nomenclatura de materiais<\/li>\n<\/ul>\n\n\n\n<p>Sim, faz.&nbsp;<strong>n\u00e3o<\/strong>&nbsp;avaliar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Degrada\u00e7\u00e3o qu\u00edmica do produto<\/li>\n\n\n\n<li>Estabilidade do perfume<\/li>\n\n\n\n<li>Mudan\u00e7a de cor ou precipita\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<div class=\"note\">\n<strong>Importante:<\/strong> A compatibilidade do produto deve sempre ser avaliada em paralelo com o inchamento da junta.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Teste de expans\u00e3o \u2013 Interpreta\u00e7\u00e3o de engenharia<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Princ\u00edpio de Medi\u00e7\u00e3o<\/h3>\n\n\n\n<p>O inchamento da junta \u00e9 avaliado comparando-se a espessura original da junta com a espessura ap\u00f3s a exposi\u00e7\u00e3o \u00e0 formula\u00e7\u00e3o em aerossol.<\/p>\n\n\n\n<p>As medi\u00e7\u00f5es s\u00e3o realizadas utilizando:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Man\u00f4metro de mostrador com aproximadamente&nbsp;<strong>carga de mola constante de 50 g<\/strong><\/li>\n\n\n\n<li>Medindo a superf\u00edcie da bigorna de aproximadamente&nbsp;<strong>50 mm\u00b2<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Medi\u00e7\u00e3o inicial (D1)<\/h3>\n\n\n\n<p>A espessura original (D1) \u00e9 medida com uma precis\u00e3o de \u00b10,01 mm, seja:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Em tr\u00eas juntas individuais e somadas, ou<\/li>\n\n\n\n<li>Em um conjunto de tr\u00eas juntas empilhadas<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Exposi\u00e7\u00e3o a formula\u00e7\u00f5es em aerossol<\/h3>\n\n\n\n<p>Tr\u00eas juntas do mesmo material s\u00e3o colocadas em um recipiente adequado, preenchido com a formula\u00e7\u00e3o completa do aerossol e pressurizado com o propelente apropriado.<\/p>\n\n\n\n<p>Intervalos de exposi\u00e7\u00e3o recomendados:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3 dias<\/li>\n\n\n\n<li>7 dias<\/li>\n\n\n\n<li>2 semanas<\/li>\n\n\n\n<li>4 semanas<\/li>\n\n\n\n<li>8 semanas<\/li>\n<\/ul>\n\n\n\n<p>As amostras s\u00e3o armazenadas \u00e0 temperatura ambiente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Medi\u00e7\u00e3o final (D2)<\/h3>\n\n\n\n<p>Ap\u00f3s cada intervalo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O recipiente foi aberto com seguran\u00e7a.<\/li>\n\n\n\n<li>As juntas s\u00e3o removidas e medidas.&nbsp;<strong>em 5 segundos<\/strong><\/li>\n\n\n\n<li>N\u00e3o \u00e9 permitido secar ou limpar com um pano.<\/li>\n<\/ul>\n\n\n\n<div class=\"note\">\n<strong>Regra fundamental:<\/strong> A medi\u00e7\u00e3o tardia permite a evapora\u00e7\u00e3o do solvente e falsifica os resultados.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1lculo da porcentagem de incha\u00e7o<\/h2>\n\n\n\n<p>O percentual de incha\u00e7o \u00e9 calculado da seguinte forma:<\/p>\n\n\n\n<p><strong>(3D2 \u2212 3D1) \u00d7 100 \/ 3D1<\/strong><\/p>\n\n\n\n<p>Onde:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D1 = espessura original da junta<\/li>\n\n\n\n<li>D2 = espessura ap\u00f3s exposi\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Comportamento de equil\u00edbrio e sele\u00e7\u00e3o de materiais<\/h2>\n\n\n\n<p>Um material de junta adequado deve atingir um&nbsp;<strong>equil\u00edbrio est\u00e1vel<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Curva X:<\/strong>&nbsp;Equil\u00edbrio est\u00e1vel \u2013 aceit\u00e1vel<\/li>\n\n\n\n<li><strong>Curva Y:<\/strong>&nbsp;Incha\u00e7o seguido de retra\u00e7\u00e3o \u2013 alto risco<\/li>\n\n\n\n<li><strong>Curva Z:<\/strong>&nbsp;Incha\u00e7o cont\u00ednuo \u2013 inaceit\u00e1vel<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"562\" src=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves.webp\" alt=\"Gr\u00e1fico de equil\u00edbrio de expans\u00e3o de juntas FEA 641 mostrando tr\u00eas comportamentos distintos do material: equil\u00edbrio est\u00e1vel (X), expans\u00e3o seguida de contra\u00e7\u00e3o (Y) e expans\u00e3o cont\u00ednua (Z) ao longo de v\u00e1rios dias.\" class=\"wp-image-46693\" title=\"\" srcset=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves.webp 1000w, https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Figura 1: Compara\u00e7\u00e3o dos comportamentos t\u00edpicos de expans\u00e3o de juntas de aerossol.<\/figcaption><\/figure>\n\n\n\n<div class=\"note\">\n<strong>Vis\u00e3o t\u00e9cnica em engenharia:<\/strong> O incha\u00e7o cont\u00ednuo indica a degrada\u00e7\u00e3o do pol\u00edmero e a inevit\u00e1vel falha da v\u00e1lvula.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Estrat\u00e9gia de avalia\u00e7\u00e3o recomendada<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Me\u00e7a o incha\u00e7o ap\u00f3s 3 ou 7 dias.<\/li>\n\n\n\n<li>Repita a consulta ap\u00f3s 2 semanas.<\/li>\n\n\n\n<li>Se est\u00e1vel, o equil\u00edbrio \u00e9 confirmado.<\/li>\n\n\n\n<li>Caso contr\u00e1rio, continue nas semanas 4 e 8.<\/li>\n<\/ul>\n\n\n\n<p>Caso o equil\u00edbrio n\u00e3o seja atingido ap\u00f3s 8 semanas, a combina\u00e7\u00e3o de formula\u00e7\u00e3o\/junta deve ser rejeitada.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nomenclatura de Materiais (ISO 1629)<\/h2>\n\n\n\n<div class=\"table-wrap\">\n<table>\n  <thead>\n    <tr>\n      <th>Aula<\/th>\n      <th>Denomina\u00e7\u00e3o<\/th>\n      <th>Nome comum<\/th>\n      <th>F\u00f3rmula qu\u00edmica (simplificada)<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr><td>BR<\/td><td>Borracha de butadieno<\/td><td>Polibutadieno<\/td><td>(\u2013CH\u2082\u2013CH=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>NBR<\/td><td>Borracha de nitrilo-butadieno<\/td><td>Nitrila<\/td><td>(\u2013CH\u2082\u2013CH(CN)\u2013)n<\/td><\/tr>\n    <tr><td>SBR<\/td><td>Borracha de estireno-butadieno<\/td><td>Estireno-butadieno<\/td><td>(\u2013CH\u2082\u2013CH(Ph)\u2013)n<\/td><\/tr>\n    <tr><td>EPDM<\/td><td>Borracha de etileno-propileno-dieno<\/td><td>EPDM<\/td><td>(\u2013CH\u2082\u2013CH\u2082\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>IR<\/td><td>Borracha de isopreno<\/td><td>Poli-isopreno<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>IIR<\/td><td>Borracha de isobutileno-isopreno<\/td><td>Butilo<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)\u2082\u2013)n<\/td><\/tr>\n    <tr><td>CR<\/td><td>Borracha de cloropreno<\/td><td>Policloropreno<\/td><td>(\u2013CH\u2082\u2013CCl=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>CIIR<\/td><td>Cloro-isobutileno-isopreno<\/td><td>Clorobutil<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)\u2082\u2013)n<\/td><\/tr>\n    <tr><td>FPM<\/td><td>Borracha fluorocarbonada<\/td><td>FKM \/ Fluoro<\/td><td>(\u2013CF\u2082\u2013CF\u2082\u2013)n<\/td><\/tr>\n    <tr><td>PU<\/td><td>Borracha de poli\u00e9ster<\/td><td>Poliuretano<\/td><td>\u2013NH\u2013CO\u2013O\u2013<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Rela\u00e7\u00e3o com outras normas<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.cnshining.com\/pt\/medicao-de-paralelismo-fea-405-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">FEA 405<\/a><\/strong>&nbsp;\u2013 Teste de vazamento de v\u00e1lvulas<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group download-standard-box is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h6 class=\"wp-block-heading\"><strong>Baixe o PDF padr\u00e3o<\/strong><\/h6>\n\n\n\n<p><strong>FEA 641<\/strong> Norma que descreve um m\u00e9todo de teste para selecionar materiais adequados para juntas de v\u00e1lvulas de aerossol. Ela descreve os procedimentos para medir o inchamento da junta quando exposta a formula\u00e7\u00f5es completas de aerossol, ajudando a avaliar a compatibilidade do material e a garantir o desempenho adequado da veda\u00e7\u00e3o da v\u00e1lvula.<\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-168ce233 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/\/www.cnshining.com\/download\/FEA641.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Baixe o FEA 641 (PDF)<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.cnshining.com\/pt\/fabricante-de-latas-de-aerossol-de-aluminio\/\" target=\"_blank\" rel=\"noreferrer noopener\">Veja as embalagens de aerossol.<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Perguntas frequentes \u2013 Engenharia e Compras<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">1. A disciplina FEA 641 \u00e9 obrigat\u00f3ria?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>N\u00e3o, mas \u00e9 amplamente utilizado como um m\u00e9todo de boas pr\u00e1ticas para selecionar materiais de juntas compat\u00edveis durante o desenvolvimento.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">2. Incha\u00e7o \u00e9 sempre ruim?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>N\u00e3o. O inchamento controlado pode melhorar a veda\u00e7\u00e3o, mas apenas se o equil\u00edbrio for est\u00e1vel e estiver dentro dos limites de projeto da v\u00e1lvula.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">3. Por que a medi\u00e7\u00e3o deve ser feita em at\u00e9 5 segundos?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>A evapora\u00e7\u00e3o do solvente come\u00e7a imediatamente. Atrasos levam a valores de intumescimento artificialmente baixos.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-5&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-5-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-5\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">4. Este teste consegue prever vazamentos a longo prazo?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-5\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-5-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>\u00c9 um forte indicador, mas deve ser combinado com testes funcionais de vazamento de v\u00e1lvulas.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-6&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-6-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-6\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">5. Os limites de expans\u00e3o da junta devem ser acordados com os fornecedores de v\u00e1lvulas?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-6\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-6-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Sim. Diferentes designs de v\u00e1lvulas toleram diferentes n\u00edveis de press\u00e3o.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\t\t<div data-elementor-type=\"container\" data-elementor-id=\"45061\" class=\"elementor elementor-45061\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c370fa5 e-flex e-con-boxed e-con e-parent\" data-id=\"c370fa5\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-0c8b7c0 e-con-full e-flex e-con e-child\" data-id=\"0c8b7c0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f5ac074 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f5ac074\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\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<div class=\"elementor-element elementor-element-0836143 e-con-full e-flex e-con e-child\" data-id=\"0836143\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-dba680a e-con-full e-flex e-con e-child\" data-id=\"dba680a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-87d0a39 elementor-widget elementor-widget-image\" data-id=\"87d0a39\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/elementor\/thumbs\/CEO-Pony-rl92dlnb7ws10luyx873mcxf7ywgvs77xv5lzan74g.webp\" title=\"CEO Pony\" alt=\"CEO Pony\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5930664 e-con-full e-flex e-con e-child\" data-id=\"5930664\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-f907e4b e-con-full e-flex e-con e-child\" data-id=\"f907e4b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4639852 elementor-widget elementor-widget-heading\" data-id=\"4639852\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Pony Ma | CEO<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96f59b6 elementor-widget elementor-widget-text-editor\" data-id=\"96f59b6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"7\">Com <b data-path-to-node=\"7\" data-index-in-node=\"5\">25 anos<\/b> Com experi\u00eancia em embalagens met\u00e1licas, dedicamo-nos a fornecer... <b data-path-to-node=\"7\" data-index-in-node=\"106\">solu\u00e7\u00f5es de embalagens sustent\u00e1veis<\/b> por meio de tecnologias inovadoras de alum\u00ednio. E compartilho regularmente insights sobre inova\u00e7\u00e3o em materiais e estrat\u00e9gias de fornecimento global para ajudar as marcas a se manterem competitivas.<\/p><p data-path-to-node=\"8\">Seja bem-vindo(a) ao nosso canal de conex\u00e3o! <a href=\"http:\/\/www.linkedin.com\/in\/bottle\" target=\"_blank\" rel=\"noopener nofollow\"><b data-path-to-node=\"8\" data-index-in-node=\"30\">LinkedIn<\/b><\/a> Para discutir as \u00faltimas tend\u00eancias do setor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Guia pr\u00e1tico de engenharia para a disciplina FEA 641, explicando testes de expans\u00e3o de juntas, avalia\u00e7\u00e3o de equil\u00edbrio e sele\u00e7\u00e3o de materiais para garantir a confiabilidade da veda\u00e7\u00e3o de v\u00e1lvulas de aerossol.<\/p>","protected":false},"author":1,"featured_media":47211,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[],"class_list":["post-46060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aerosol-packaging"],"_links":{"self":[{"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/posts\/46060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/comments?post=46060"}],"version-history":[{"count":2,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/posts\/46060\/revisions"}],"predecessor-version":[{"id":46694,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/posts\/46060\/revisions\/46694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/media\/47211"}],"wp:attachment":[{"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/media?parent=46060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/categories?post=46060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnshining.com\/pt\/wp-json\/wp\/v2\/tags?post=46060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}