{"id":9705,"date":"2021-07-29T07:56:15","date_gmt":"2021-07-29T07:56:15","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9705"},"modified":"2021-07-29T07:56:15","modified_gmt":"2021-07-29T07:56:15","slug":"aluminum-recovery","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-recovery\/","title":{"rendered":"Recupera\u00e7\u00e3o de alum\u00ednio"},"content":{"rendered":"<p>No processo de recupera\u00e7\u00e3o de alum\u00ednio, a filtra\u00e7\u00e3o CFF do alum\u00ednio fundido \u00e9 o \u00faltimo processo de purifica\u00e7\u00e3o pr\u00f3ximo \u00e0 fundi\u00e7\u00e3o e \u00e0 moldagem. Anteriormente, o refinamento, a eleva\u00e7\u00e3o e a desgaseifica\u00e7\u00e3o eram realizados fora do forno. Embora as inclus\u00f5es e os gases tenham sido removidos nas faixas de 60% a 80%, as impurezas mais finas ainda permanecem dispersas na massa fundida, e novas inclus\u00f5es ser\u00e3o geradas durante os processos de refino e fluxo. Antes da fundi\u00e7\u00e3o, essas fases finas devem se agregar, crescer e se separar. Em compara\u00e7\u00e3o com outros m\u00e9todos de purifica\u00e7\u00e3o, o <a href=\"http:\/\/www.alalloycasting.com\/pt\/cff-filtration\/\">Filtragem CFF<\/a> Esse m\u00e9todo tornou-se o processo preferido para a remo\u00e7\u00e3o final de impurezas devido \u00e0s suas vantagens, como baixo consumo de energia, opera\u00e7\u00e3o simples, baixa intensidade de m\u00e3o de obra, alta efici\u00eancia na remo\u00e7\u00e3o de impurezas e baixo n\u00edvel de polui\u00e7\u00e3o.<\/p>\n<p>No atual processo de produ\u00e7\u00e3o de algumas fundi\u00e7\u00f5es, o teor de alum\u00ednio na esc\u00f3ria residual varia geralmente entre 40% e 80%. \u00c9 importante dar aten\u00e7\u00e3o \u00e0 recupera\u00e7\u00e3o do alum\u00ednio da esc\u00f3ria residual, pois a fundi\u00e7\u00e3o pode reciclar o alum\u00ednio.<\/p>\n<p>O alum\u00ednio possui excelentes propriedades e quase n\u00e3o sofre corros\u00e3o durante o uso. \u00c9 amplamente utilizado em aplica\u00e7\u00f5es civis e militares. Possui alta capacidade de reciclagem e \u00e9 de grande import\u00e2ncia na recupera\u00e7\u00e3o de recursos secund\u00e1rios.<\/p>\n<p>O papel fundamental do alum\u00ednio na transforma\u00e7\u00e3o ecol\u00f3gica e na prote\u00e7\u00e3o ambiental \u00e9 um fato. A produ\u00e7\u00e3o de alum\u00ednio prim\u00e1rio requer energia est\u00e1vel: para obter alum\u00ednio a partir de sucata\/reciclagem, basta 5% da energia necess\u00e1ria para produzir alum\u00ednio prim\u00e1rio.<\/p>\n<p>Por diversos motivos, a reciclagem do alum\u00ednio \u00e9 uma escolha acertada. A produ\u00e7\u00e3o de alum\u00ednio a partir de sucata continua apresentando alto desempenho em termos de efici\u00eancia, descarburiza\u00e7\u00e3o e sustentabilidade; isso \u00e9 poss\u00edvel porque a sucata \u00e9 refundida com elementos qu\u00edmicos para produzir ligas de alto desempenho e pureza, semelhantes aos lingotes de alum\u00ednio reciclado provenientes do alum\u00ednio prim\u00e1rio.<\/p>\n<p>As caracter\u00edsticas das sucatas de alum\u00ednio reciclado e de ligas de alum\u00ednio s\u00e3o: origens complexas, formas diversas, frequentemente com incrusta\u00e7\u00f5es, misturadas e revestidas com alguns metais e n\u00e3o-metais que n\u00e3o s\u00e3o de alum\u00ednio; a composi\u00e7\u00e3o varia amplamente e a superf\u00edcie n\u00e3o est\u00e1 limpa. Se essas subst\u00e2ncias n\u00e3o forem removidas antes da fundi\u00e7\u00e3o, isso causar\u00e1 a inala\u00e7\u00e3o de grandes quantidades do metal fundido, resultando em poros, porosidade e outros defeitos no processo de solidifica\u00e7\u00e3o subsequente. Al\u00e9m disso, a mistura de alguns metais que n\u00e3o s\u00e3o de alum\u00ednio tamb\u00e9m tornar\u00e1 a composi\u00e7\u00e3o do material inadequada e prejudicar\u00e1 o desempenho. A mistura de v\u00e1rios minerais n\u00e3o met\u00e1licos causar\u00e1 inclus\u00f5es n\u00e3o met\u00e1licas, o que tamb\u00e9m reduzir\u00e1 o desempenho e a qualidade do material.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the aluminum recovery process, CFF aluminum melt filtration is the last purification process close to smelting and casting. Previously, the furnace was refining, lifting,&hellip;<\/p>","protected":false},"author":1,"featured_media":9718,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9705","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Recovery Process with CFF Aluminum Melt Filtration<\/title>\n<meta name=\"description\" content=\"In the aluminum recovery process, CFF aluminum melt filtration is the last purification process close to smelting and casting.\" \/>\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\/aluminum-recovery\/\" \/>\n<meta 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