{"id":3242,"date":"2020-08-01T06:54:51","date_gmt":"2020-08-01T06:54:51","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=3242"},"modified":"2020-10-19T08:38:02","modified_gmt":"2020-10-19T08:38:02","slug":"aluminum-alloy-refining-process","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-alloy-refining-process\/","title":{"rendered":"Processo de refino de ligas de alum\u00ednio"},"content":{"rendered":"

O processo de refino de ligas de alum\u00ednio fundido utiliza compostos qu\u00edmicos adicionados ao alum\u00ednio fundido para desgaseificar e remover a esc\u00f3ria. O processo de refino de ligas de alum\u00ednio \u00e9 uma etapa importante que n\u00e3o pode ser omitida no processo de fundi\u00e7\u00e3o de ligas de alum\u00ednio. Ele desempenha a fun\u00e7\u00e3o de desgaseificar, purificar e refinar a liga de alum\u00ednio.<\/p>\n

A liga de alum\u00ednio possui propriedades qu\u00edmicas relativamente ativas. Durante a fundi\u00e7\u00e3o e a fus\u00e3o, ela tende a reagir facilmente com o vapor de \u00e1gua, oxidando-se e absorvendo hidrog\u00eanio, o que leva \u00e0 forma\u00e7\u00e3o de defeitos, como inclus\u00f5es e poros, quando o alum\u00ednio l\u00edquido se solidifica, formando pe\u00e7as fundidas de alum\u00ednio. Esses defeitos afetam as propriedades mec\u00e2nicas das pe\u00e7as fundidas de alum\u00ednio.<\/p>\n

Existem duas op\u00e7\u00f5es atuais m\u00e9todos de refino<\/a>:<\/p>\n

1. M\u00e9todo de refino por adsor\u00e7\u00e3o: inclui principalmente o m\u00e9todo com solvente, o m\u00e9todo de flota\u00e7\u00e3o e o m\u00e9todo de filtra\u00e7\u00e3o;<\/p>\n

2. M\u00e9todo de refino sem adsor\u00e7\u00e3o: tratamento a v\u00e1cuo e tratamento ultrass\u00f4nico<\/p>\n

Na fundi\u00e7\u00e3o de ligas de alum\u00ednio, independentemente do m\u00e9todo de refino utilizado, o objetivo \u00e9 realizar uma melhor desgaseifica\u00e7\u00e3o, purifica\u00e7\u00e3o e refino da liga de alum\u00ednio, a fim de obter pe\u00e7as fundidas de alum\u00ednio de alta qualidade e em conformidade com as especifica\u00e7\u00f5es.<\/p>\n

O agente refinador \u00e9 um p\u00f3 branco ou fluxo granular, obtido a partir da mistura e formula\u00e7\u00e3o, em determinada propor\u00e7\u00e3o, de diversos sais inorg\u00e2nicos ap\u00f3s um tratamento de secagem. \u00c9 utilizado principalmente para remover o hidrog\u00eanio e a esc\u00f3ria oxidada flutuante do alum\u00ednio l\u00edquido. Seu principal elemento constituinte \u00e9 o alum\u00ednio.<\/p>\n

A quais problemas se deve prestar aten\u00e7\u00e3o ao utilizar um agente refinador?<\/p>\n

\u00c2mbito de aplica\u00e7\u00e3o: adequado para os tipos comuns de ligas de alum\u00ednio (ligas com alto teor de magn\u00e9sio e ligas de alum\u00ednio-magn\u00e9sio n\u00e3o podem ser utilizadas), bem como na fundi\u00e7\u00e3o de alum\u00ednio puro, no refinamento por desgaseifica\u00e7\u00e3o e na remo\u00e7\u00e3o de esc\u00f3ria.<\/p>\n

Modo de uso: Polvilhe o agente refinador sobre a superf\u00edcie do l\u00edquido, pressione-o rapidamente contra o alum\u00ednio fundido, mexa bem e deixe repousar para a remo\u00e7\u00e3o das esc\u00f3rias; por exemplo, com a ajuda de um pulverizador, pulverize o agente refinador no alum\u00ednio fundido com g\u00e1s inerte para obter melhores resultados.<\/p>\n

Requisitos de embalagem: produto em p\u00f3, embalagem \u00e0 prova de umidade e deve estar seco no local de destino.<\/p>","protected":false},"excerpt":{"rendered":"

The cast aluminum alloy refining process uses chemical compounds added to molten aluminum to degas and remove slag. Aluminum Alloy Refining Process is an important…<\/p>","protected":false},"author":1,"featured_media":3282,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[1764],"class_list":["post-3242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-alloy-refining-process"],"yoast_head":"\nAluminum Alloy Refining Process,How To Degas Aluminum<\/title>\n<meta name=\"description\" content=\"Aluminum Alloy Refining Process is an important process step that cannot be missed in the aluminum alloy casting 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\/aluminum-alloy-refining-process\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" 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