{"id":9990,"date":"2021-08-20T06:16:46","date_gmt":"2021-08-20T06:16:46","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9990"},"modified":"2021-08-20T06:16:46","modified_gmt":"2021-08-20T06:16:46","slug":"aluminum-fluxes-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-fluxes-refining\/","title":{"rendered":"Refinamento de fundentes de alum\u00ednio"},"content":{"rendered":"

O m\u00e9todo de refino com fundentes de alum\u00ednio apresenta bons resultados na remo\u00e7\u00e3o de inclus\u00f5es n\u00e3o met\u00e1licas. O grau de purifica\u00e7\u00e3o proporcionado pelo fluxo para remover inclus\u00f5es n\u00e3o met\u00e1licas da massa fundida n\u00e3o est\u00e1 relacionado apenas \u00e0s propriedades f\u00edsicas e qu\u00edmicas do fluxo, mas tamb\u00e9m depende, em grande medida, das condi\u00e7\u00f5es do processo de refinamento, tais como a quantidade de fluxo, o tempo de contato entre o fluxo e a massa fundida, a \u00e1rea de contato, as condi\u00e7\u00f5es de mistura, a temperatura, etc.<\/p>\n

Para a refina\u00e7\u00e3o de ligas de alum\u00ednio fundidas, centenas de fundentes foram desenvolvidos, sendo que os fundentes \u00e0 base de cloretos de s\u00f3dio e pot\u00e1ssio s\u00e3o os mais amplamente utilizados. Para ligas de alum\u00ednio com baixo teor de magn\u00e9sio, os fundentes \u00e0 base de cloretos de s\u00f3dio e pot\u00e1ssio agentes de refino<\/a> s\u00e3o amplamente utilizados. No caso de ligas de alum\u00ednio com alto teor de magn\u00e9sio, para evitar a fragilidade causada pelo s\u00f3dio, s\u00e3o utilizados fluxos de refino \u00e0 base de carnallita, sem s\u00f3dio.<\/p>\n

Na fundi\u00e7\u00e3o de sucata de ligas de alum\u00ednio, a qualidade da sucata varia, e a quantidade de agente de cobertura e de refinamento tamb\u00e9m difere. A quantidade de agente de refinamento tamb\u00e9m varia de acordo com as diferentes ligas de alum\u00ednio e os diferentes produtos.<\/p>\n

\"\"<\/p>\n

Os seguintes m\u00e9todos s\u00e3o comumente utilizados na produ\u00e7\u00e3o de ligas de alum\u00ednio por meio da fundi\u00e7\u00e3o e do refinamento com fundentes de alum\u00ednio:<\/p>\n

O metal fundido \u00e9 refinado na panela de fundi\u00e7\u00e3o. Primeiro, coloque um pacote de fundente na panela, depois injete o metal fundido e mexa bem para aumentar a \u00e1rea de contato entre os dois.
\nA massa fundida \u00e9 refinada em um forno de indu\u00e7\u00e3o. O fundente \u00e9 introduzido no forno de indu\u00e7\u00e3o, e o fundente e a massa fundida s\u00e3o totalmente misturados por meio do efeito de agita\u00e7\u00e3o do campo magn\u00e9tico de indu\u00e7\u00e3o, a fim de alcan\u00e7ar o objetivo de refinamento.
\n\u00c9 refinado com um misturador na concha ou no forno para dispersar mecanicamente o fundente na massa fundida.
\nA massa fundida \u00e9 refinada em um dispositivo de agita\u00e7\u00e3o por campo magn\u00e9tico. Esse m\u00e9todo utiliza a for\u00e7a eletromagn\u00e9tica para conduzir continuamente a massa fundida at\u00e9 a interface entre o fluxo e o metal, a fim de obter um contato ativo entre a massa fundida de alum\u00ednio e o fluxo. Quanto maior a velocidade de rota\u00e7\u00e3o da massa fundida, melhor \u00e9 o efeito de refinamento.
\nRefinamento por fluxo el\u00e9trico. Nesse m\u00e9todo, a massa fundida \u00e9 passada por uma camada de fluxo \u00e0 qual \u00e9 aplicado um campo el\u00e9trico (na interface metal-fluxo) para o refinamento cont\u00ednuo.<\/p>","protected":false},"excerpt":{"rendered":"

The aluminum fluxes refining method has a good effect on discharging non-metallic inclusions. The degree of purification by the flux to remove non-metallic inclusions in…<\/p>","protected":false},"author":1,"featured_media":9991,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12389,688],"class_list":["post-9990","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-fluxes-refining","tag-molten-aluminum-purification"],"yoast_head":"\nAluminum Fluxes Refining, Molten Aluminum Purification<\/title>\n<meta name=\"description\" content=\"The aluminum fluxes refining method has a good effect on discharging non-metallic inclusions. 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