{"id":9506,"date":"2021-07-09T03:02:45","date_gmt":"2021-07-09T03:02:45","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9506"},"modified":"2021-07-09T03:52:37","modified_gmt":"2021-07-09T03:52:37","slug":"cff-aluminum-melt-filtration","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/cff-aluminum-melt-filtration\/","title":{"rendered":"Filtra\u00e7\u00e3o de alum\u00ednio fundido CFF"},"content":{"rendered":"

A filtragem de alum\u00ednio fundido com CFF (Filtro de Espuma Cer\u00e2mica) n\u00e3o s\u00f3 remove inclus\u00f5es f\u00edsicas por meio da intercepta\u00e7\u00e3o superficial e da adsor\u00e7\u00e3o, como tamb\u00e9m tem o efeito de purifica\u00e7\u00e3o do solvente. O filtro de espuma cer\u00e2mica (CFF) \u00e9 atualmente o filtro mais utilizado para a filtragem de alum\u00ednio fundido. Suas vantagens s\u00e3o alta porosidade, alta efici\u00eancia de filtragem, substitui\u00e7\u00e3o pr\u00e1tica, baixo custo, forte adaptabilidade, al\u00e9m de poder filtrar inclus\u00f5es s\u00f3lidas e separar algumas inclus\u00f5es l\u00edquidas.<\/p>\n

A filtra\u00e7\u00e3o de alum\u00ednio fundido da CFF \u00e9 capaz de remover com efic\u00e1cia diversas inclus\u00f5es presentes no alum\u00ednio fundido destinado \u00e0 fundi\u00e7\u00e3o de barras, lingotes e chapas de alum\u00ednio, al\u00e9m de melhorar a pureza do alum\u00ednio l\u00edquido. Dessa forma, melhora a qualidade das barras, lingotes e chapas de alum\u00ednio, reduzindo custos e aumentando a produtividade.<\/p>\n

Filtro cer\u00e2mico de espuma<\/a> \u00c9 um tipo de produto cer\u00e2mico poroso com porosidade que varia de 70% a 90%, apresentando uma estrutura de rede tridimensional e poros interpenetrados. \u00c9 amplamente utilizado para a filtra\u00e7\u00e3o de metal fundido em ligas n\u00e3o ferrosas, ferro fundido e a\u00e7o fundido. O processo de produ\u00e7\u00e3o \u00e9 o seguinte: utiliza-se espuma pl\u00e1stica como esqueleto, que \u00e9 revestida com pasta cer\u00e2mica e queimada em altas temperaturas.<\/p>\n

\"Material<\/p>\n

Como a espuma cer\u00e2mica possui uma estrutura de rede tridimensional, seu mecanismo de filtragem \u00e9 o seguinte:<\/strong><\/p>\n

Ao selecionar cer\u00e2micas espumosas com tamanho de poro adequado, \u00e9 poss\u00edvel remover, por meio de m\u00e9todos mec\u00e2nicos de peneiramento e filtragem, um grande n\u00famero de inclus\u00f5es de \u00f3xidos, esc\u00f3ria e outras impurezas de grande porte presentes no metal fundido.<\/p>\n

Com o aumento do n\u00famero de inclus\u00f5es retidas, forma-se um \u201cbolo de filtra\u00e7\u00e3o\u201d composto por grandes inclus\u00f5es na superf\u00edcie da entrada da tela de filtragem, a fim de potencializar o efeito de filtragem.<\/p>\n

O filtro de espuma cer\u00e2mica possui uma grande \u00e1rea de superf\u00edcie interna, o que favorece a adsor\u00e7\u00e3o de um grande n\u00famero de impurezas finas. Ao mesmo tempo, ap\u00f3s passar pela espuma cer\u00e2mica, o metal l\u00edquido passa de um fluxo turbulento para um fluxo laminar, o que altera o estado do fluxo e torna o enchimento mais est\u00e1vel.<\/p>\n

Portanto, ele pode, de forma eficaz, reduzir os defeitos decorrentes de inclus\u00f5es de esc\u00f3ria, diminuir o teor de gases e elementos nocivos no metal fundido, melhorar a estrutura, aprimorar as propriedades mec\u00e2nicas e aumentar o rendimento geral e a qualidade da superf\u00edcie das pe\u00e7as fundidas.<\/p>","protected":false},"excerpt":{"rendered":"

CFF (Ceramic Foam Filter) aluminum melt filtration can not only remove physical inclusions through surface interception and adsorption, but also has the effect of solvent…<\/p>","protected":false},"author":1,"featured_media":9507,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9506","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nCFF Aluminum Melt Filtration, Ceramic Foam Filter Filtering Mechanism<\/title>\n<meta name=\"description\" content=\"CFF (Ceramic Foam Filter) aluminum melt filtration can not only remove physical inclusions through surface interception and adsorption...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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