{"id":11207,"date":"2021-11-14T08:46:50","date_gmt":"2021-11-14T08:46:50","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11207"},"modified":"2021-11-12T08:51:15","modified_gmt":"2021-11-12T08:51:15","slug":"refining-molten-aluminium","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/refining-molten-aluminium\/","title":{"rendered":"Refinamento de alum\u00ednio fundido"},"content":{"rendered":"

Para melhorar a qualidade do alum\u00ednio fundido e remover de forma eficaz as inclus\u00f5es, como hidrog\u00eanio e \u00f3xido de alum\u00ednio, o segredo est\u00e1 no processo de refino.<\/p>\n

Devido ao fato de ser um material leve, n\u00e3o t\u00f3xico, inodoro, que bloqueia a luz, \u00e0 prova de umidade, resistente \u00e0 corros\u00e3o, com altas propriedades de barreira, resist\u00eancia aos raios UV, f\u00e1cil de dobrar durante o processamento e a utiliza\u00e7\u00e3o, com excelente ades\u00e3o e selabilidade a quente, al\u00e9m de bom desempenho na impress\u00e3o de superf\u00edcies. \u00c9 amplamente utilizado nas ind\u00fastrias de cigarros, medicamentos, alimentos, eletr\u00f4nicos, produtos qu\u00edmicos de uso di\u00e1rio e outras. Durante o uso, a espessura da folha de alum\u00ednio \u201cduplo zero\u201d atinge \u201cduplo zero cinco\u201d e \u201cduplo zero seis\u201d, ou at\u00e9 mesmo mais fina. Portanto, as propriedades mec\u00e2nicas e o grau de porosidade da folha de alum\u00ednio \u201cduplo zero\u201d apresentam requisitos mais elevados. No entanto, durante o processo de fundi\u00e7\u00e3o do alum\u00ednio derretido, devido \u00e0 presen\u00e7a de inclus\u00f5es como hidrog\u00eanio e \u00f3xido de alum\u00ednio, a folha de alum\u00ednio \u201cduplo zero\u201d frequentemente n\u00e3o atinge o desempenho exigido e chega a gerar res\u00edduos, o que afeta gravemente os benef\u00edcios econ\u00f4micos da empresa.<\/p>\n

Os m\u00e9todos de refino do alum\u00ednio fundido podem ser divididos em duas categorias:<\/p>\n

Um deles \u00e9 o m\u00e9todo de adsor\u00e7\u00e3o<\/a>, principalmente por meio do contato entre o adsorvente e a massa fundida, de modo que o adsorvente e as impurezas presentes na massa fundida tenham intera\u00e7\u00f5es f\u00edsicas, qu\u00edmicas ou mec\u00e2nicas, com o objetivo de remover o hidrog\u00eanio e as impurezas.<\/p>\n

\"Fluxo<\/p>\n

O segundo \u00e9 o m\u00e9todo de n\u00e3o adsor\u00e7\u00e3o, que altera o estado de equil\u00edbrio do sistema composto por metal, g\u00e1s e inclus\u00f5es por meio de efeitos f\u00edsicos, como v\u00e1cuo, ultrassom e diferen\u00e7a de densidade, a fim de separar o g\u00e1s e as impurezas do alum\u00ednio fundido. Embora o m\u00e9todo de tratamento a v\u00e1cuo tenha suas pr\u00f3prias vantagens, o equipamento \u00e9 caro e oneroso, e ainda n\u00e3o tem sido amplamente utilizado.<\/p>\n

No processo de produ\u00e7\u00e3o propriamente dito, o m\u00e9todo de n\u00e3o adsor\u00e7\u00e3o raramente \u00e9 utilizado, sendo empregado principalmente em pesquisas te\u00f3ricas em laborat\u00f3rio. Nos \u00faltimos anos, o tratamento ultrass\u00f4nico e a tecnologia de purifica\u00e7\u00e3o eletromagn\u00e9tica tornaram-se um tema em destaque no estudo da purifica\u00e7\u00e3o de metais fundidos. No processo de fundi\u00e7\u00e3o, o m\u00e9todo mais amplamente utilizado \u00e9 o de adsor\u00e7\u00e3o. O m\u00e9todo de adsor\u00e7\u00e3o inclui duas categorias: o m\u00e9todo de filtra\u00e7\u00e3o CFF e o m\u00e9todo de flota\u00e7\u00e3o. Como o m\u00e9todo de flota\u00e7\u00e3o \u00e9 relativamente simples de operar e n\u00e3o produz riscos secund\u00e1rios, ele \u00e9 a tecnologia de refino mais amplamente utilizada.<\/p>","protected":false},"excerpt":{"rendered":"

How to improve the quality of the molten aluminium and effectively remove the inclusions such as hydrogen and aluminum oxide, the key is the refining…<\/p>","protected":false},"author":1,"featured_media":11209,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-11207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nRefining Molten Aluminium, Adsorption Method and Floatation Method<\/title>\n<meta name=\"description\" content=\"How to improve the quality of the molten aluminium and effectively remove the inclusions, the key is the refining process.\" \/>\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\/refining-molten-aluminium\/\" \/>\n<meta property=\"og:locale\" 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