{"id":1884,"date":"2023-11-08T13:17:18","date_gmt":"2023-11-08T13:17:18","guid":{"rendered":"https:\/\/www.mintecinno.com\/?p=1884"},"modified":"2023-11-08T13:25:50","modified_gmt":"2023-11-08T13:25:50","slug":"how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process","status":"publish","type":"post","link":"https:\/\/www.mintecinno.com\/pt_br\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/","title":{"rendered":"Como evitar o empenamento da PCB na fabrica\u00e7\u00e3o de PCBA durante o processo SMT?"},"content":{"rendered":"<h1>Como evitar o empenamento da PCB na fabrica\u00e7\u00e3o de PCBA durante o processo SMT<\/h1>\n<p>Durante a tecnologia de montagem em superf\u00edcie <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">(SMT<\/a>), placas de circuito impresso (<a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCBs<\/a>) podem sofrer empenamento, levando a v\u00e1rios defeitos, como desalinhamento de componentes e tombamento. Neste artigo, discutiremos os m\u00e9todos eficazes empregados pela Shenzhen <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCBA<\/a> fabricantes para evitar o empenamento da placa de circuito impresso durante <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCBA<\/a> fabrica\u00e7\u00e3o:<\/p>\n<h2>1. Controle de temperatura:<\/h2>\n<p>O gerenciamento da temperatura \u00e9 vital porque \u00e9 a principal fonte de estresse para os PCBs. Reduzir a temperatura no forno de refluxo ou ajustar as taxas de aquecimento e resfriamento durante o processo de refluxo pode atenuar significativamente <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCB<\/a> deforma\u00e7\u00e3o. No entanto, essa abordagem deve ser cuidadosamente equilibrada, pois temperaturas mais baixas podem levar a problemas como a forma\u00e7\u00e3o de pontes de solda.<\/p>\n<h2>2. Materiais de alta Tg:<\/h2>\n<p>A Tg, ou temperatura de transi\u00e7\u00e3o v\u00edtrea, representa o ponto em que um material passa de um estado s\u00f3lido e v\u00edtreo para um estado emborrachado. Os materiais com valores de Tg mais baixos amolecem mais rapidamente durante o refluxo e permanecem em um estado de borracha por um per\u00edodo mais longo. Isso pode resultar em deforma\u00e7\u00f5es mais graves na placa. Para aumentar a capacidade de uma placa de circuito impresso de resistir \u00e0 deforma\u00e7\u00e3o induzida por estresse, os fabricantes podem optar por materiais com valores de Tg mais altos, embora essa escolha possa ter um custo mais alto.<\/p>\n<h2>3. Aumento da espessura da placa:<\/h2>\n<p>Muitos dispositivos eletr\u00f4nicos buscam designs finos, resultando em <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCB<\/a> espessuras t\u00e3o baixas quanto 1,0 mm, 0,8 mm ou at\u00e9 0,6 mm. Essas placas ultrafinas s\u00e3o mais suscet\u00edveis \u00e0 deforma\u00e7\u00e3o durante a soldagem por refluxo. Se a finura n\u00e3o for um requisito rigoroso, \u00e9 recomend\u00e1vel usar PCBs com espessura de 1,6 mm. Isso reduz significativamente o risco de <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCB<\/a> empenamento e deforma\u00e7\u00e3o.<\/p>\n<h2>4. Gerenciamento de dimens\u00e3o e paineliza\u00e7\u00e3o:<\/h2>\n<p>Como a maioria dos fornos de refus\u00e3o usa transportadores de corrente para transportar <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCBs,<\/a> Placas maiores s\u00e3o mais propensas a se curvar ou deformar devido ao seu pr\u00f3prio peso. Para minimizar a deforma\u00e7\u00e3o, recomenda-se orientar o lado mais longo da placa paralelamente \u00e0 corrente do transportador. Al\u00e9m disso, reduzir o n\u00famero de pain\u00e9is durante a soldagem por refluxo, posicionando os lados estreitos perpendicularmente \u00e0 dire\u00e7\u00e3o do transportador, ajuda a minimizar a deforma\u00e7\u00e3o.<\/p>\n<h2>5. Suportes ou acess\u00f3rios para solda por refluxo:<\/h2>\n<p>Quando outros m\u00e9todos se mostram desafiadores, o uso de suportes ou acess\u00f3rios de solda por refluxo pode ser a solu\u00e7\u00e3o para minimizar a deforma\u00e7\u00e3o da PCB. Esses acess\u00f3rios, geralmente constru\u00eddos com materiais como liga de alum\u00ednio ou pedra sint\u00e9tica, s\u00e3o conhecidos por sua resist\u00eancia a altas temperaturas. Eles estabilizam a PCB durante a expans\u00e3o em alta temperatura e o resfriamento subsequente, preservando a <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCB<\/a>at\u00e9 que a temperatura caia abaixo do ponto Tg. Nesse est\u00e1gio, o <a href=\"https:\/\/www.cenpcba.com\/\">PCB<\/a> recupera sua rigidez. Nos casos em que os acess\u00f3rios de camada \u00fanica s\u00e3o insuficientes, os acess\u00f3rios de camada dupla com uma tampa podem reduzir ainda mais a deforma\u00e7\u00e3o da PCB. No entanto, vale a pena observar que esses acess\u00f3rios podem ser caros e requerem m\u00e3o de obra adicional para instala\u00e7\u00e3o e remo\u00e7\u00e3o.<\/p>\n<h2>6. Roteador para desanexa\u00e7\u00e3o:<\/h2>\n<p>Como o corte em V pode enfraquecer a integridade estrutural de PCBs em pain\u00e9is, \u00e9 recomend\u00e1vel evitar o corte em V ou minimizar sua profundidade.<\/p>\n<p>Esses m\u00e9todos desempenham um papel fundamental para ajudar os fabricantes de PCBs a evitar problemas de empenamento de PCBs durante o processo de fabrica\u00e7\u00e3o de SMT, garantindo a produ\u00e7\u00e3o de conjuntos de placas de circuito impresso de alta qualidade (<a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">PCBAs<\/a>). Para obter mais informa\u00e7\u00f5es. Entre em contato com <a href=\"https:\/\/www.mintecinno.com\/pt_br\/\">MTI PCBA<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>How to Prevent PCB Warping in PCBA Manufacturing during SMT Process During the Surface Mount Technology (SMT) manufacturing process, Printed Circuit Boards (PCBs) can experience warping, leading to various defects such as component misalignment and tombstoning. In this article, we will discuss effective methods employed by Shenzhen PCBA manufacturers to prevent PCB warping during PCBA [&hellip;]<\/p>","protected":false},"author":3,"featured_media":1849,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner<\/title>\n<meta name=\"description\" content=\"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mintecinno.com\/pt_br\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner\" \/>\n<meta property=\"og:description\" content=\"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mintecinno.com\/pt_br\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/\" \/>\n<meta property=\"og:site_name\" content=\"MTI PCBA\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-08T13:17:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-08T13:25:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"administrator\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"administrator\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/\",\"url\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/\",\"name\":\"Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner\",\"isPartOf\":{\"@id\":\"https:\/\/www.mintecinno.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png\",\"datePublished\":\"2023-11-08T13:17:18+00:00\",\"dateModified\":\"2023-11-08T13:25:50+00:00\",\"author\":{\"@id\":\"https:\/\/www.mintecinno.com\/#\/schema\/person\/5165da83d54c7e4dccc90cbb37d02b71\"},\"description\":\"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA\",\"breadcrumb\":{\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage\",\"url\":\"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png\",\"contentUrl\":\"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.mintecinno.com\/home\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Prevent PCB Warping in PCBA Manufacturing during SMT Process?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.mintecinno.com\/#website\",\"url\":\"https:\/\/www.mintecinno.com\/\",\"name\":\"MTI PCBA\",\"description\":\"Electronic Manufacturing Service\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.mintecinno.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.mintecinno.com\/#\/schema\/person\/5165da83d54c7e4dccc90cbb37d02b71\",\"name\":\"administrator\",\"sameAs\":[\"http:\/\/www.mintecinno.com\"],\"url\":\"https:\/\/www.mintecinno.com\/pt_br\/author\/administrator\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner","description":"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.mintecinno.com\/pt_br\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/","og_locale":"pt_BR","og_type":"article","og_title":"Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner","og_description":"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA","og_url":"https:\/\/www.mintecinno.com\/pt_br\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/","og_site_name":"MTI PCBA","article_published_time":"2023-11-08T13:17:18+00:00","article_modified_time":"2023-11-08T13:25:50+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png","type":"image\/png"}],"author":"administrator","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"administrator","Est. tempo de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/","url":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/","name":"Shenzhen PCB Assembly SMT Assembly MTI PCBA EMS Partner","isPartOf":{"@id":"https:\/\/www.mintecinno.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage"},"image":{"@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage"},"thumbnailUrl":"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png","datePublished":"2023-11-08T13:17:18+00:00","dateModified":"2023-11-08T13:25:50+00:00","author":{"@id":"https:\/\/www.mintecinno.com\/#\/schema\/person\/5165da83d54c7e4dccc90cbb37d02b71"},"description":"Learn how Shenzhen PCBA manufacturers avoid PCB warping during SMT assembly. Discover effective methods, from temperature control to high Tg materials, ensuring high-quality PCBA","breadcrumb":{"@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#primaryimage","url":"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png","contentUrl":"https:\/\/www.mintecinno.com\/wp-content\/uploads\/2023\/10\/Industrial-PCBA-2.png","width":800,"height":800},{"@type":"BreadcrumbList","@id":"https:\/\/www.mintecinno.com\/how-to-prevent-pcb-warping-in-pcba-manufacturing-during-smt-process\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.mintecinno.com\/home\/"},{"@type":"ListItem","position":2,"name":"How to Prevent PCB Warping in PCBA Manufacturing during SMT Process?"}]},{"@type":"WebSite","@id":"https:\/\/www.mintecinno.com\/#website","url":"https:\/\/www.mintecinno.com\/","name":"MTI PCBA","description":"Servi\u00e7o de fabrica\u00e7\u00e3o eletr\u00f4nica","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.mintecinno.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Person","@id":"https:\/\/www.mintecinno.com\/#\/schema\/person\/5165da83d54c7e4dccc90cbb37d02b71","name":"administrador","sameAs":["http:\/\/www.mintecinno.com"],"url":"https:\/\/www.mintecinno.com\/pt_br\/author\/administrator\/"}]}},"_links":{"self":[{"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/posts\/1884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/comments?post=1884"}],"version-history":[{"count":3,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/posts\/1884\/revisions"}],"predecessor-version":[{"id":1887,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/posts\/1884\/revisions\/1887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/media\/1849"}],"wp:attachment":[{"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/media?parent=1884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/categories?post=1884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mintecinno.com\/pt_br\/wp-json\/wp\/v2\/tags?post=1884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}