{"id":2340,"date":"2026-07-14T14:00:00","date_gmt":"2026-07-14T14:00:00","guid":{"rendered":"https:\/\/swesd.com\/blog\/high-temperature-esd-magazine-rack-reflow-guide\/"},"modified":"2026-08-24T08:11:47","modified_gmt":"2026-08-24T08:11:47","slug":"high-temperature-esd-magazine-rack-reflow-guide","status":"publish","type":"post","link":"https:\/\/swesd.com\/pt\/blog\/high-temperature-esd-magazine-rack-reflow-guide\/","title":{"rendered":"Que papel desempenham os dispensadores de revistas na prepara\u00e7\u00e3o para refluxo?"},"content":{"rendered":"<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Os suportes de revistas ESD de alta temperatura protegem as placas de circuito impresso em buffers quentes ap\u00f3s a refus\u00e3o \u2014 mas a classe t\u00e9rmica deve corresponder ao tempo de perman\u00eancia e \u00e0 temperatura m\u00e1xima da placa, e n\u00e3o a r\u00f3tulos de marketing como \u201cresistente ao calor\u201d.\u201d<\/strong><\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Este guia destina-se a engenheiros de processos SMT, coordenadores de ESD e compradores de EMS que especificam <a href=\"https:\/\/swesd.com\/pt\/esd-magazine-rack\/\">suportes para revistas ESD<\/a> perto das sa\u00eddas de refluxo. Para coloca\u00e7\u00e3o em buffer geral, consulte a <a href=\"https:\/\/swesd.com\/pt\/blog\/anti-static-magazine-rack\/\">guia de amortecimento para estante de revistas antiest\u00e1tica<\/a>. Para a rigidez da placa de base, consultar a <a href=\"https:\/\/swesd.com\/pt\/blog\/esd-magazine-rack-metal-base-vs-plastic-base\/\">compara\u00e7\u00e3o entre base de metal e base de pl\u00e1stico<\/a>.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"High-temperature ESD magazine rack for reflow-adjacent PCB staging on SMT lines\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/03\/ESD-Magazine-Rack05-1.webp\" \/><\/p>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 style=\"margin:42px 0 14px\">Conte\u00fado<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"#part-1-what-role-do-magazine-racks-play-in-reflow-staging\">Parte 1. Que papel desempenham os dispensadores de revistas na prepara\u00e7\u00e3o para o refluxo?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-2-how-do-160-c-standard-and-200-c-optional-grades-differ\">Parte 2. Em que diferem os graus standard de 160\u00b0C e opcional de 200\u00b0C?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-3-how-should-buyers-map-dwell-time-and-queue-placement\">Parte 3. Como devem os compradores mapear o tempo de perman\u00eancia e a coloca\u00e7\u00e3o na fila?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-4-which-materials-resist-warpage-in-warm-zones\">Parte 4. Que materiais resistem ao empenamento em zonas quentes?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-5-when-should-resistance-be-re-tested-after-heat-exposure\">Parte 5. Quando deve a resist\u00eancia ser testada novamente ap\u00f3s a exposi\u00e7\u00e3o ao calor?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-6-what-heat-fields-belong-in-an-rfq\">Parte 6. Que campos de calor pertencem a um RFQ?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#part-7-which-sanwei-racks-fit-reflow-adjacent-buffers\">Parte 7. Quais prateleiras Sanwei encaixam em acumuladores adjacentes \u00e0 refus\u00e3o?<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px\" id=\"part-1-what-role-do-magazine-racks-play-in-reflow-staging\">Parte 1. Que papel desempenham os dispensadores de revistas na prepara\u00e7\u00e3o para o refluxo?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Ap\u00f3s a reflux\u00e3o, os pain\u00e9is deslocam-se frequentemente atrav\u00e9s <strong>inspe\u00e7\u00e3o, arrefecimento e manuseamento manual<\/strong> antes da etapa SMT seguinte. Os suportes de carregadores armazenam esses movimentos em buffer enquanto mant\u00eam as placas em ranhuras dissipativas.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Distin\u00e7\u00e3o cr\u00edtica para compras:<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Cen\u00e1rio<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Fun\u00e7\u00e3o t\u00edpica de rack<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Foco na especifica\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Fila quente imediatamente ap\u00f3s a sa\u00edda do forno<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Mant\u00e9m placas quentes durante minutos, n\u00e3o horas<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Classe de guia de calor + estabilidade de ranhura<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">tamp\u00e3o \u00e0 temperatura ambiente a jusante<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">As guias dissipativas standard muitas vezes bastam<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Registos de footprint e de \u03a9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">No interior de um forno de refus\u00e3o ativo<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\"><strong>N\u00e3o predefinido para suportes de revistas<\/strong><\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Requer classifica\u00e7\u00e3o expl\u00edcita do fornecedor para utiliza\u00e7\u00e3o no forno \u2014 n\u00e3o assumir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Sanwei lista forno de soldadura por onda \/ forno de refluxo <strong>transportadoras<\/strong> entre as aplica\u00e7\u00f5es na sua <a href=\"https:\/\/swesd.com\/pt\/solutions\/esd-magazine-rack\/\">P\u00e1gina de solu\u00e7\u00e3o de estantes ESD para revistas<\/a>\u2014 interprete isso como a adequa\u00e7\u00e3o ao n\u00edvel do programa para ambientes t\u00e9rmicos SMT e, em seguida, confirme <strong>temperatura de servi\u00e7o cont\u00ednuo e tempo de perman\u00eancia<\/strong> sobre a cota\u00e7\u00e3o exata do SKU.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Para a fase t\u00e9rmica a quente (hot staging) ao n\u00edvel de componentes em tabuleiros em vez de em placas de circuito impresso (PCBs) em ranhuras, compare o <a href=\"https:\/\/swesd.com\/pt\/blog\/heat-resistant-esd-box\/\">guia de prepara\u00e7\u00e3o de caixas ESD resistentes ao calor<\/a>.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-2-how-do-160-c-standard-and-200-c-optional-grades-differ\">Parte 2. Em que diferem os graus standard de 160\u00b0C e opcional de 200\u00b0C?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A Sanwei publica <strong>resistente ao calor at\u00e9 160\u00b0C<\/strong> com um <strong>grau opcional de 200\u00b0C<\/strong> na sua p\u00e1gina de solu\u00e7\u00f5es, juntamente com o comp\u00f3sito de liga PBT\/PET para baixo empenamento.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Classifica\u00e7\u00e3o (publicada pela Sanwei)<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Quando normalmente se ajusta<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Quando \u00e9 excessivamente especificado<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">160\u00b0C standard<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Filas quentes com tempo de perman\u00eancia curto; placas a arrefecer em dire\u00e7\u00e3o \u00e0 temperatura ambiente<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Tampones de temperatura ambiente prolongada apenas<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">200\u00b0C opcional<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Filas quentes sustentadas, pilhas multicamadas mais pesadas perto do forno<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Linhas onde as placas nunca excedem o ambiente + margem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Dica:<\/strong> Forno <strong>perfil de pico<\/strong> (por exemplo, pico na placa a 245\u00b0C) n\u00e3o \u00e9 o mesmo que <strong>temperatura de servi\u00e7o cont\u00ednuo da cremalheira<\/strong>. O RFQ deve indicar <strong>temperatura da placa na inser\u00e7\u00e3o<\/strong> e <strong>minutos na zona quente<\/strong>. \u2014 Fonte: p\u00e1gina de graus de aquecimento da solu\u00e7\u00e3o Sanwei; confirme com o perfil do OEM do seu forno.<\/p>\n<\/blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\">Combine o grau de aquecimento com o mecanismo de largura quando as linhas forem de alta variedade \u2014 consulte o <a href=\"https:\/\/swesd.com\/pt\/blog\/handle-adjustable-esd-magazine-rack-rfq-guide\/\">Guia de RFQ para porta-revistas com pega ajust\u00e1vel<\/a>.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-3-how-should-buyers-map-dwell-time-and-queue-placement\">Parte 3. Como devem os compradores mapear o tempo de perman\u00eancia e a coloca\u00e7\u00e3o na fila?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A engenharia de processos deve documentar:<\/p>\n<ol style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><strong>Dist\u00e2ncia desde a sa\u00edda do forno<\/strong> (metros) e o ponto de defini\u00e7\u00e3o do HVAC ambiente.  <\/li>\n<li style=\"margin:0 0 8px\"><strong>M\u00e1ximo de placas por bastidor<\/strong> durante a ponta do turno.  <\/li>\n<li style=\"margin:0 0 8px\"><strong>Minutos at\u00e9 a superf\u00edcie da placa descer abaixo do seu limite interno<\/strong> (muitos sites utilizam limites de manuseamento de 50\u201360\u00b0C \u2013 confirme o seu).  <\/li>\n<li style=\"margin:0 0 8px\"><strong>Se os operadores tocam nas guias<\/strong> durante a inser\u00e7\u00e3o (transfer\u00eancia de calor da luva).<\/li>\n<\/ol>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Padr\u00e3o de fila<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Risco de calor<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Mitiga\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Prateleira \u00fanica, tempo de perman\u00eancia de 2\u20135 min<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Moderado<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">guias da classe 160\u00b0C; verificar a integridade do bloqueio<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Fileira de bastidores no corredor quente<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Alto<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">grau de 200\u00b0C; base met\u00e1lica por <a href=\"https:\/\/swesd.com\/pt\/blog\/esd-magazine-rack-metal-base-vs-plastic-base\/\">guia de compara\u00e7\u00e3o de bases<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Turno de inspe\u00e7\u00e3o atrasado<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Elevado calor acumulado<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Reduzir o n\u00famero de ranhuras por bastidor; rodar os bastidores<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Apenas \u00e0 temperatura ambiente ap\u00f3s mais de 10 min de arrefecimento<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Inferior<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">A nota padr\u00e3o poder\u00e1 ser suficiente<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Disposi\u00e7\u00e3o da fila de fotografias ao pedir conselhos sobre materiais aos fornecedores\u2014os \u00edcones de calor do cat\u00e1logo n\u00e3o s\u00e3o dados de processo.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-4-which-materials-resist-warpage-in-warm-zones\">Parte 4. Que materiais resistem ao empenamento em zonas quentes?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Cita\u00e7\u00f5es de Sanwei <strong>comp\u00f3sito de liga PBT\/PET patenteado<\/strong> com arestas lisas e sem rebarbas na respetiva p\u00e1gina de solu\u00e7\u00e3o. O empenamento manifesta-se como <strong>desalinhamento de ranhuras<\/strong>\u2014avarias de automa\u00e7\u00e3o mesmo quando as leituras de \u00f3mega parecem corretas na rece\u00e7\u00e3o.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Componente<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Pergunta da zona quente<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Ajustar limite<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Guias laterais<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Servi\u00e7o cont\u00ednuo vs toque intermitente<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">N\u00e3o use guias exclusivas para temperatura ambiente em bancos quentes<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Placa de base<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Flex\u00e3o de metal vs pl\u00e1stico quando aquecido<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ver compara\u00e7\u00e3o de bases de metal\/pl\u00e1stico<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Passo da ranhura<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Expans\u00e3o t\u00e9rmica ao longo de 50 ranhuras<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Reverificar tom ap\u00f3s a primeira semana de produ\u00e7\u00e3o<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lote de cor\/material<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Encolhimento de molde de lote para lote<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Congelar o n\u00famero do molde no pacote de QA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">A cor preta por si s\u00f3 n\u00e3o comprova a classifica\u00e7\u00e3o t\u00e9rmica \u2014 pedido <strong>carta de classifica\u00e7\u00e3o t\u00e9rmica do fornecedor<\/strong> atrelado ao n\u00famero do molde.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-5-when-should-resistance-be-re-tested-after-heat-exposure\">Parte 5. Quando deve a resist\u00eancia ser testada novamente ap\u00f3s a exposi\u00e7\u00e3o ao calor?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Programas alinhados com <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/62391\" rel=\"nofollow noopener\" target=\"_blank\">IEC 61340-5-1<\/a> e <a href=\"https:\/\/www.esdassociation.org\/standards\/\" rel=\"nofollow noopener\" target=\"_blank\">ANSI\/ESD S20.20<\/a> exigir dissipa\u00e7\u00e3o verificada e n\u00e3o suposi\u00e7\u00f5es ap\u00f3s ciclagen t\u00e9rmica.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">A Sanwei publica <strong>10\u2076\u201310\u2079 \u03a9<\/strong> na respetiva p\u00e1gina de solu\u00e7\u00e3o. Ap\u00f3s a implementa\u00e7\u00e3o da *warm-queue*:<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">guias de amostra e base na rece\u00e7\u00e3o;<\/li>\n<li style=\"margin:0 0 8px\">reamostrar ap\u00f3s <strong>primeira semana de produ\u00e7\u00e3o<\/strong> na zona de perigo;<\/li>\n<li style=\"margin:0 0 8px\">m\u00e9todo de sondagem de registo e instala\u00e7\u00e3o RH;<\/li>\n<li style=\"margin:0 0 8px\">substituir guias que mostram desvio para al\u00e9m dos seus limites internos.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7\">O calor pode alterar temporariamente as leituras; um desvio permanente indica uma classe de material errada ou contamina\u00e7\u00e3o qu\u00edmica.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-6-what-heat-fields-belong-in-an-rfq\">Parte 6. Que campos de calor pertencem a um RFQ?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Adicionar um anexo t\u00e9rmico aos pacotes de RFQ dimensionais:<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Campo<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Exemplo<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Propriet\u00e1rio<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Temperatura m\u00e1xima da placa na inser\u00e7\u00e3o no bastidor<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">superf\u00edcie a 85\u00b0C (pistola IV)<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Processo<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Tempo de perman\u00eancia na zona quente<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">m\u00e9dia de 3 min<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Produ\u00e7\u00e3o<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ambiente perto da fila<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">corredor a 28\u00b0C<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Instala\u00e7\u00f5es<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Grau Sanwei requerido<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">160\u00b0C standard vs 200\u00b0C opcional<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Qualidade<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contacto no forno (sim\/n\u00e3o)<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">N\u00e3o \u2014 apenas o buffer<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Engenharia<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Intervalo de reteste<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Weekly sample<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">ESD coordinator<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Omission<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u201cNear reflow\u201d without minutes<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Wrong guide material<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Assuming in-oven use<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Safety and warranty risk<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">No re-test plan<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Audit failure after months<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"margin:42px 0 14px\" id=\"part-7-which-sanwei-racks-fit-reflow-adjacent-buffers\">Parte 7. Quais prateleiras Sanwei encaixam em acumuladores adjacentes \u00e0 refus\u00e3o?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"Sanwei ESD magazine rack product line for SMT PCB buffering\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/04\/ESD-Magazine-Rack.webp\" \/><\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Review Sanwei\u2019s <a href=\"https:\/\/swesd.com\/pt\/esd-magazine-rack\/\">ESD Magazine Rack category<\/a> with heat annex attached.<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><strong>Mid-size high-mix with warm queue:<\/strong> <a href=\"https:\/\/swesd.com\/pt\/product\/esd-magazine-rack-355-l-320-w-h-mm\/\">355(L)\u00d7320(W) mm gear-adjust listing<\/a> when width changes and hot dwell coexist.<\/li>\n<li style=\"margin:0 0 8px\"><strong>Very wide panels:<\/strong> <a href=\"https:\/\/swesd.com\/pt\/product\/esd-magazine-rack-630l530wh-mm\/\">630(L)\u00d7530(W) mm SKU<\/a>\u2014confirm mass and hot flex with supplier.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" alt=\"ESD magazine rack alternate view for heat-rated SMT staging evaluation\" src=\"https:\/\/swesd.com\/wp-content\/uploads\/2026\/03\/ESD-Magazine-Rack03-4.webp\" \/><\/p>\n<h3 style=\"margin:28px 0 12px\">Fit Boundary<\/h3>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Buyer situation<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Reasonable path<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Avoid<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Short warm dwell after reflow<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">160\u00b0C standard grade + re-test plan<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">200\u00b0C grade without data<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Hot rack banks in aisle<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">200\u00b0C optional + rigid base<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Room-temp plastic guides<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">In-oven carrier function<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Stop\u2014request explicit supplier oven rating<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Assuming magazine = oven tray<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Room-temp-only downstream<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Standard grade<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Paying premium heat markup unused<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Send process diagrams through <a href=\"https:\/\/swesd.com\/pt\/contact-us\/\">Contacte-nos<\/a> or <a href=\"https:\/\/swesd.com\/pt\/oem-odm\/\">OEM\/ODM<\/a> when slot pitch or heat grade differs from catalog defaults.<\/p>\n<h2 style=\"margin:42px 0 14px\">FAQ<\/h2>\n<h3 style=\"margin:28px 0 12px\">What temperature can ESD magazine racks withstand?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Sanwei publishes up to 160\u00b0C standard service with optional 200\u00b0C grade on its solution page\u2014verify against your dwell and board temperature data.<\/p>\n<h3 style=\"margin:28px 0 12px\">Can PCB magazine racks go through reflow ovens?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Magazine racks typically buffer boards <strong>after<\/strong> exit unless the supplier explicitly rates in-oven use. Default assumption: <strong>buffer only<\/strong>.<\/p>\n<h3 style=\"margin:28px 0 12px\">What material is used for heat-resistant ESD racks?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Sanwei cites anti-static PP \/ PBT alloy \/ permanent anti-static compound on its solution page\u2014confirm the exact formulation on your PO line item.<\/p>\n<h3 style=\"margin:28px 0 12px\">What is the difference between 160\u00b0C and 200\u00b0C grades?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">200\u00b0C optional grades target longer or hotter dwell in warm queues; 160\u00b0C standard fits shorter post-reflow buffering when supplier data matches your process.<\/p>\n<h3 style=\"margin:28px 0 12px\">How do you store PCBs after reflow without ESD damage?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use dissipative racks in grounded EPAs, limit hot dwell, and verify \u03a9 on guides after thermal exposure\u2014pair with facility wrist\/foot grounding as required.<\/p>\n<h3 style=\"margin:28px 0 12px\">How does this relate to heat-resistant ESD boxes?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Boxes suit component and kit staging; magazine racks suit <strong>PCB slot buffering<\/strong>\u2014see the <a href=\"https:\/\/swesd.com\/pt\/blog\/heat-resistant-esd-box\/\">guia de prepara\u00e7\u00e3o de caixas ESD resistentes ao calor<\/a> for bin workflows.<\/p>\n<h3 style=\"margin:28px 0 12px\">Should buyers re-test resistance after heat exposure?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Yes\u2014sample after first week in the warm zone and on audit cadence defined by your ESD program.<\/p>\n<h3 style=\"margin:28px 0 12px\">When is standard 160\u00b0C grade enough?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">When boards cool quickly and dwell in the warm zone stays short\u2014document minutes and peak board temp to justify the grade.<\/p>\n<h2 style=\"margin:42px 0 14px\">References<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/62391\" rel=\"nofollow noopener\" target=\"_blank\">IEC 61340-5-1 \u2014 Electrostatics (ESD control program)<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/www.esdassociation.org\/standards\/\" rel=\"nofollow noopener\" target=\"_blank\">ANSI\/ESD S20.20 \u2014 ESD Association program standard<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/hawkerrichardson.com.au\/product\/cab-pcb-magazines-600-700-series\/\" rel=\"nofollow noopener\" target=\"_blank\">Cab PCB Magazines 600\/700 series product summary (Hawker Richardson)<\/a> \u2014 third-party SMT magazine context only<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>High-temperature ESD magazine racks protect PCBs in warm buffers after reflow\u2014but heat class must match dwell time and peak board temperature, not marketing labels like \u201cheat resistant.\u201d This guide is for SMT process engineers, ESD coordinators, and EMS buyers specifying ESD magazine racks near reflow exits. For general buffering, see the anti-static magazine rack buffering [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":1035,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"acf":[],"_links":{"self":[{"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/posts\/2340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/comments?post=2340"}],"version-history":[{"count":1,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/posts\/2340\/revisions"}],"predecessor-version":[{"id":2605,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/posts\/2340\/revisions\/2605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/media\/1035"}],"wp:attachment":[{"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/media?parent=2340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/categories?post=2340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swesd.com\/pt\/wp-json\/wp\/v2\/tags?post=2340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}