{"id":5659,"date":"2020-10-16T03:30:19","date_gmt":"2020-10-16T03:30:19","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5659"},"modified":"2021-02-23T02:11:30","modified_gmt":"2021-02-23T02:11:30","slug":"fluxes-refining-process","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/fluxes-refining-process\/","title":{"rendered":"Processo de refino de fluxos"},"content":{"rendered":"

Com o desenvolvimento da ci\u00eancia e da tecnologia, os setores automotivo, de constru\u00e7\u00e3o naval, de avia\u00e7\u00e3o, aeroespacial e outras ind\u00fastrias de manufatura apresentam exig\u00eancias de qualidade cada vez mais elevadas para pe\u00e7as fundidas de liga de alum\u00ednio. Al\u00e9m de garantir a composi\u00e7\u00e3o qu\u00edmica, as propriedades mec\u00e2nicas e a precis\u00e3o dimensional, as pe\u00e7as fundidas n\u00e3o podem apresentar porosidade, retra\u00e7\u00e3o nem defeitos como orif\u00edcios. A fundi\u00e7\u00e3o da liga de alum\u00ednio \u00e9 um processo de grande import\u00e2ncia no ciclo de produ\u00e7\u00e3o das pe\u00e7as fundidas. Anos de experi\u00eancia em produ\u00e7\u00e3o comprovaram que, quando o processo de refino com fundentes n\u00e3o \u00e9 rigorosamente controlado, as pe\u00e7as fundidas ficam sujeitas a defeitos como poros min\u00fasculos, inclus\u00f5es de esc\u00f3ria oxidada e retra\u00e7\u00e3o, o que afeta diretamente a qualidade das pe\u00e7as. Portanto, para se obter pe\u00e7as fundidas de liga de alum\u00ednio de alta qualidade, o processo de fus\u00e3o deve ser rigorosamente controlado.<\/p>\n

O objetivo do processo de refino com fluxos de alum\u00ednio \u00e9 reduzir a complexidade da opera\u00e7\u00e3o, melhorar o efeito de refino da liga de alum\u00ednio fundida, aumentar a taxa de utiliza\u00e7\u00e3o do agente de refino e garantir um tratamento de refino pr\u00e9-forno est\u00e1vel da liga de alum\u00ednio fundida.<\/p>\n

\"Processo<\/p>\n

Processo de refino de fluxos<\/h2>\n

O principal objetivo do refinamento da liga de alum\u00ednio \u00e9 remover gases e inclus\u00f5es n\u00e3o met\u00e1licas da massa fundida, al\u00e9m de uniformizar a composi\u00e7\u00e3o da liga. O refinamento \u00e9 um processo extremamente importante na fundi\u00e7\u00e3o. O agente de refinamento deve ser selecionado corretamente e a quantidade adicionada deve ser controlada. AdTech fluxo granular<\/a> \u00c9 preparado pela mistura de diversos sais inorg\u00e2nicos em determinada propor\u00e7\u00e3o, ap\u00f3s um tratamento de secagem. \u00c9 utilizado principalmente para remover o hidrog\u00eanio e a esc\u00f3ria oxidada flutuante do interior do alum\u00ednio l\u00edquido. Geralmente, deve-se adicionar 0,5% a 0,7% da massa da liga. Controle a temperatura de refino, que geralmente \u00e9 mantida entre 700 e 720 \u00b0C. No processo de refino, utilize uma camp\u00e2nula para pressionar o agente de refino em lotes at\u00e9 cerca de 2\/3 abaixo da superf\u00edcie do metal fundido e gire-a no sentido hor\u00e1rio de maneira uniforme e lenta. A velocidade deve ser lenta e o movimento deve ser est\u00e1vel para evitar grande agita\u00e7\u00e3o do metal fundido, de modo a impedir o aumento do teor de hidrog\u00eanio e a forma\u00e7\u00e3o de inclus\u00f5es.<\/p>","protected":false},"excerpt":{"rendered":"

With the development of science and technology, automotive, shipbuilding, aviation, aerospace, and other manufacturing industries have increasingly higher quality requirements for aluminum alloy castings. In…<\/p>","protected":false},"author":1,"featured_media":5661,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5659","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nFluxes Refining Process | Molten Aluminum Refining<\/title>\n<meta name=\"description\" content=\"Fluxes refining process is not strictly controlled, and castings are prone to defects such as pinholes, oxidized slag inclusions...\" \/>\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\/fluxes-refining-process\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fluxes Refining Process | Molten Aluminum 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