{"id":5504,"date":"2020-10-12T08:40:33","date_gmt":"2020-10-12T08:40:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5504"},"modified":"2020-10-12T08:40:33","modified_gmt":"2020-10-12T08:40:33","slug":"metallurgical-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/metallurgical-filter\/","title":{"rendered":"Filtro metal\u00fargico"},"content":{"rendered":"

O filtro metal\u00fargico s\u00f3 consegue remover as inclus\u00f5es que j\u00e1 se encontram na corrente l\u00edquida, e apenas as impurezas infus\u00edveis podem ser removidas por meio do filtro de metal fundido. A ideia de reduzir as inclus\u00f5es nas pe\u00e7as fundidas \u00e9 t\u00e3o antiga quanto a pr\u00f3pria fundi\u00e7\u00e3o. Nas d\u00e9cadas de 1920 e 1930, utilizou-se um sistema de canais de alimenta\u00e7\u00e3o para projetar um saco de esc\u00f3ria destinado a capturar inclus\u00f5es em metais ferrosos com grande diferen\u00e7a de densidade nas inclus\u00f5es met\u00e1licas. O canal de alimenta\u00e7\u00e3o plano \u00e9 utilizado para aumentar a capacidade do canal de capturar inclus\u00f5es e \u00e9 eficaz para inclus\u00f5es de filme de \u00f3xido. O elemento filtrante foi projetado na d\u00e9cada de 1960 para capturar part\u00edculas grossas. Filtros de espuma cer\u00e2mica<\/a> come\u00e7ou a ser utilizado em aplica\u00e7\u00f5es industriais na d\u00e9cada de 1970, principalmente em ligas de alum\u00ednio. Desde a d\u00e9cada de 1980, tem sido aplicado em ferro fundido, e sua aplica\u00e7\u00e3o em a\u00e7o fundido surgiu posteriormente para substituir o complicado projeto do canal de fundi\u00e7\u00e3o por um filtro, com melhores resultados.<\/p>\n

Mecanismo de filtragem do filtro metal\u00fargico<\/h2>\n

O mecanismo de filtragem por tela faz com que a parte frontal (entrada) do filtro retenha part\u00edculas de grande porte, maiores do que sua abertura.<\/p>\n

O mecanismo de filtragem em camadas \u00e9 formado pelas inclus\u00f5es inicialmente retidas na superf\u00edcie do filtro. As inclus\u00f5es menores s\u00e3o retidas pelas inclus\u00f5es maiores.<\/p>\n

O mecanismo de filtragem profunda ocorre em todo o volume do filtro. O princ\u00edpio se baseia na ades\u00e3o das impurezas \u00e0 parede do filtro cer\u00e2mico e na ades\u00e3o m\u00fatua entre as pr\u00f3prias impurezas.<\/p>\n

\"Filtro<\/p>\n

O filtro de espuma cer\u00e2mica baseia-se em um sistema de estrutura celular penta\u00e9drica interconectada. O filtro de espuma \u00e9 fabricado por imers\u00e3o de espuma de poliuretano em uma suspens\u00e3o cer\u00e2mica adequada. Ap\u00f3s a queima da espuma, obt\u00e9m-se a estrutura do filtro cer\u00e2mico. Sua porosidade \u00e9 determinada pela porosidade da espuma utilizada. A porosidade \u00e9 avaliada pelo n\u00famero de poros por polegada (254 mm), definido como ppi (poros por polegada, ou seja, o n\u00famero de poros por polegada). Na fundi\u00e7\u00e3o, geralmente s\u00e3o utilizados filtros com porosidade de 20, 30 e 50 ppi. O valor de ppi n\u00e3o \u00e9 o valor real; trata-se apenas de um c\u00f3digo. O valor real de ppi \u00e9 inferior ao valor indicado.<\/p>\n

O fluxo de metal no canal de alimenta\u00e7\u00e3o costuma ser turbulento. A turbul\u00eancia causa a eros\u00e3o da parede do perfil e a oxida\u00e7\u00e3o do metal, resultando no aumento de inclus\u00f5es e no aprisionamento de g\u00e1s. O padr\u00e3o de fluxo depende do tipo de liga, da forma do sistema de alimenta\u00e7\u00e3o, da mudan\u00e7a na dire\u00e7\u00e3o do fluxo do metal e da velocidade do fluxo. Ao passar pelo filtro, o fluxo se torna calmo \u2014 o fluxo turbulento se transforma em fluxo laminar. Ap\u00f3s uma certa dist\u00e2ncia, a turbul\u00eancia reaparece, mas geralmente em menor grau do que antes do filtro. Isso \u00e9 muito importante para a fundi\u00e7\u00e3o de ligas de alum\u00ednio.<\/p>","protected":false},"excerpt":{"rendered":"

The metallurgical filter can only remove the inclusions that are already in the liquid stream, and only the infusible impurities can be removed through the…<\/p>","protected":false},"author":1,"featured_media":5505,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-5504","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"\nMetallurgical Filter for Purifying Molten Metal | Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"Metallurgical filter can only remove the inclusions that are already in the liquid stream, and only the infusible impurities can be removed.\" \/>\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.alalloycasting.com\/pt\/metallurgical-filter\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Metallurgical Filter for Purifying Molten Metal | Ceramic Foam Filter\" \/>\n<meta property=\"og:description\" content=\"Metallurgical filter can only remove the inclusions that are already in the liquid stream, and only the infusible impurities can be removed.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alalloycasting.com\/pt\/metallurgical-filter\/\" \/>\n<meta property=\"og:site_name\" content=\"alalloycasting\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-12T08:40:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"AdTech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"AdTech\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/\"},\"author\":{\"name\":\"AdTech\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#\\\/schema\\\/person\\\/431d9c832111002d5e0bf6dc57a33c20\"},\"headline\":\"Metallurgical Filter\",\"datePublished\":\"2020-10-12T08:40:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/\"},\"wordCount\":443,\"publisher\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/Metallurgical-Filter.jpg\",\"articleSection\":[\"SEO\"],\"inLanguage\":\"pt-BR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/\",\"url\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/\",\"name\":\"Metallurgical Filter for Purifying Molten Metal | Ceramic Foam Filter\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/Metallurgical-Filter.jpg\",\"datePublished\":\"2020-10-12T08:40:33+00:00\",\"description\":\"Metallurgical filter can only remove the inclusions that are already in the liquid stream, and only the infusible impurities can be removed.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/Metallurgical-Filter.jpg\",\"contentUrl\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2020\\\/10\\\/Metallurgical-Filter.jpg\",\"width\":500,\"height\":400,\"caption\":\"Metallurgical Filter\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/metallurgical-filter\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.alalloycasting.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Metallurgical Filter\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#website\",\"url\":\"https:\\\/\\\/www.alalloycasting.com\\\/\",\"name\":\"AdTech China\",\"description\":\"AdTech Metallurgical Materials Co., Ltd\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.alalloycasting.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#organization\",\"name\":\"AdTech China\",\"url\":\"https:\\\/\\\/www.alalloycasting.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-adtech-logo-1-4.jpg\",\"contentUrl\":\"https:\\\/\\\/www.alalloycasting.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-adtech-logo-1-4.jpg\",\"width\":111,\"height\":111,\"caption\":\"AdTech China\"},\"image\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#\\\/schema\\\/person\\\/431d9c832111002d5e0bf6dc57a33c20\",\"name\":\"AdTech\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g\",\"caption\":\"AdTech\"},\"sameAs\":[\"https:\\\/\\\/www.alalloycasting.com\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Filtro metal\u00fargico para purifica\u00e7\u00e3o de metal fundido | Filtro de espuma cer\u00e2mica","description":"O filtro metal\u00fargico s\u00f3 consegue remover as inclus\u00f5es que j\u00e1 se encontram na corrente l\u00edquida, e apenas as impurezas infus\u00edveis podem ser removidas.","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.alalloycasting.com\/pt\/metallurgical-filter\/","og_locale":"pt_BR","og_type":"article","og_title":"Metallurgical Filter for Purifying Molten Metal | Ceramic Foam Filter","og_description":"Metallurgical filter can only remove the inclusions that are already in the liquid stream, and only the infusible impurities can be removed.","og_url":"https:\/\/www.alalloycasting.com\/pt\/metallurgical-filter\/","og_site_name":"alalloycasting","article_published_time":"2020-10-12T08:40:33+00:00","og_image":[{"width":500,"height":400,"url":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg","type":"image\/jpeg"}],"author":"AdTech","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"AdTech","Est. tempo de leitura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#article","isPartOf":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/"},"author":{"name":"AdTech","@id":"https:\/\/www.alalloycasting.com\/#\/schema\/person\/431d9c832111002d5e0bf6dc57a33c20"},"headline":"Metallurgical Filter","datePublished":"2020-10-12T08:40:33+00:00","mainEntityOfPage":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/"},"wordCount":443,"publisher":{"@id":"https:\/\/www.alalloycasting.com\/#organization"},"image":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#primaryimage"},"thumbnailUrl":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg","articleSection":["SEO"],"inLanguage":"pt-BR"},{"@type":"WebPage","@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/","url":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/","name":"Filtro metal\u00fargico para purifica\u00e7\u00e3o de metal fundido | Filtro de espuma cer\u00e2mica","isPartOf":{"@id":"https:\/\/www.alalloycasting.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#primaryimage"},"image":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#primaryimage"},"thumbnailUrl":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg","datePublished":"2020-10-12T08:40:33+00:00","description":"O filtro metal\u00fargico s\u00f3 consegue remover as inclus\u00f5es que j\u00e1 se encontram na corrente l\u00edquida, e apenas as impurezas infus\u00edveis podem ser removidas.","breadcrumb":{"@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.alalloycasting.com\/metallurgical-filter\/"]}]},{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#primaryimage","url":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg","contentUrl":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Metallurgical-Filter.jpg","width":500,"height":400,"caption":"Metallurgical Filter"},{"@type":"BreadcrumbList","@id":"https:\/\/www.alalloycasting.com\/metallurgical-filter\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.alalloycasting.com\/"},{"@type":"ListItem","position":2,"name":"Metallurgical Filter"}]},{"@type":"WebSite","@id":"https:\/\/www.alalloycasting.com\/#website","url":"https:\/\/www.alalloycasting.com\/","name":"AdTech China","description":"AdTech Metallurgical Materials Co., Ltd","publisher":{"@id":"https:\/\/www.alalloycasting.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.alalloycasting.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/www.alalloycasting.com\/#organization","name":"AdTech China","url":"https:\/\/www.alalloycasting.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/www.alalloycasting.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2026\/06\/cropped-adtech-logo-1-4.jpg","contentUrl":"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2026\/06\/cropped-adtech-logo-1-4.jpg","width":111,"height":111,"caption":"AdTech China"},"image":{"@id":"https:\/\/www.alalloycasting.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.alalloycasting.com\/#\/schema\/person\/431d9c832111002d5e0bf6dc57a33c20","name":"AdTech","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/secure.gravatar.com\/avatar\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/260cf9357f35fc676d5fc89811dc976b08eee83dda7e1da206a3c58afae13e29?s=96&d=mm&r=g","caption":"AdTech"},"sameAs":["https:\/\/www.alalloycasting.com\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/posts\/5504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/comments?post=5504"}],"version-history":[{"count":1,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/posts\/5504\/revisions"}],"predecessor-version":[{"id":5508,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/posts\/5504\/revisions\/5508"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/media\/5505"}],"wp:attachment":[{"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/media?parent=5504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/categories?post=5504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alalloycasting.com\/pt\/wp-json\/wp\/v2\/tags?post=5504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}