{"id":86,"date":"2021-12-13T11:28:24","date_gmt":"2021-12-13T03:28:24","guid":{"rendered":"https:\/\/akhdiecasting.com\/?p=86"},"modified":"2022-08-15T15:19:08","modified_gmt":"2022-08-15T07:19:08","slug":"difference-between-pickling-and-passivation","status":"publish","type":"post","link":"https:\/\/akhdiecasting.com\/pt\/blog\/difference-between-pickling-and-passivation\/","title":{"rendered":"Diferen\u00e7a entre decapagem e passiva\u00e7\u00e3o"},"content":{"rendered":"

1\u3001 Natureza diferente
\n1. Decapagem: um m\u00e9todo de limpeza de \u00f3xidos e ferrugem em superf\u00edcies met\u00e1licas com uma solu\u00e7\u00e3o \u00e1cida
\n2. Passiva\u00e7\u00e3o: o processo no qual um metal \u00e9 oxidado por um oxidante forte ou m\u00e9todo eletroqu\u00edmico para tornar sua superf\u00edcie inativa, ou seja, passiva.<\/p>\n

2\u3001 Princ\u00edpios diferentes
\n1. Decapagem: De um modo geral, as pe\u00e7as s\u00e3o imersas em algumas solu\u00e7\u00f5es aquosas \u00e1cidas, como \u00e1cido sulf\u00farico, para remover \u00f3xidos ou outros filmes em sua superf\u00edcie. \u00c9 o processo de prepara\u00e7\u00e3o de pe\u00e7as de metal antes de outro tratamento de superf\u00edcie (como revestimento) ou a etapa intermedi\u00e1ria do tratamento de superf\u00edcie.
\n2. Passiva\u00e7\u00e3o: ap\u00f3s a forma\u00e7\u00e3o de uma camada de filme de \u00f3xido ou hidr\u00f3xido na superf\u00edcie do metal, o aumento da tens\u00e3o aplicada n\u00e3o afeta a corrente, a dissolu\u00e7\u00e3o dos \u00edons met\u00e1licos \u00e9 interrompida e possui resist\u00eancia \u00e0 corros\u00e3o.<\/p>\n

3\u3001 processo diferente
\n1. Decapagem: Geralmente, a\u00e7o tratado termicamente\u2014\u2192decapagem\u2014\u2192lavagem com \u00e1gua\u2014\u2192dipping sulfato de cobre\u2014\u2192lavagem\u2014\u2192neutraliza\u00e7\u00e3o\u2014\u2192secagem.
\n2. Passiva\u00e7\u00e3o: antes da decapagem e passiva\u00e7\u00e3o de pe\u00e7as met\u00e1licas, verifique se suas superf\u00edcies est\u00e3o limpas. Se houver manchas ou graxa, eles precisam ser limpos mecanicamente com os solventes org\u00e2nicos correspondentes. Porque as manchas e graxa na superf\u00edcie afetar\u00e3o a qualidade da decapagem e passiva\u00e7\u00e3o.<\/p>\n

\u00c9 importante selecionar o processo de tratamento de superf\u00edcie apropriado para pe\u00e7as personalizadas, o que afetar\u00e1 n\u00e3o apenas o efeito geral do produto, mas tamb\u00e9m afetar\u00e1 o custo do projeto. Portanto, engenheiros profissionais podem fornecer conhecimento correto e eficaz.<\/p>","protected":false},"excerpt":{"rendered":"

1\u3001 Different nature 1. Pickling: a method of cleaning oxides and rust on metal surfaces with an acid solution 2. Passivation: the process in which a metal is oxidized by a strong oxidant or electrochemical method to make its surface inactive, i.e. passive. 2\u3001 Different principles 1. Pickling: Generally speaking, parts are immersed in some […]<\/p>","protected":false},"author":3,"featured_media":88,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"iawp_total_views":0,"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/posts\/86"}],"collection":[{"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/comments?post=86"}],"version-history":[{"count":1,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/posts\/86\/revisions"}],"predecessor-version":[{"id":89,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/posts\/86\/revisions\/89"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/media\/88"}],"wp:attachment":[{"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/media?parent=86"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/categories?post=86"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/akhdiecasting.com\/pt\/wp-json\/wp\/v2\/tags?post=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}