{"id":6570,"date":"2020-11-19T09:10:45","date_gmt":"2020-11-19T09:10:45","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6570"},"modified":"2020-11-19T09:10:45","modified_gmt":"2020-11-19T09:10:45","slug":"refining-and-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/refining-and-degassing\/","title":{"rendered":"Refinamento e desgaseifica\u00e7\u00e3o"},"content":{"rendered":"

A temperatura de refino e desgaseifica\u00e7\u00e3o situa-se entre 720 e 750 \u2103.<\/p>\n

A quantidade de agente refinador<\/a> \u00e9 calculado de acordo com 0,1%-0,2% da massa total do alum\u00ednio fundido. Coloque-o no tanque de refino, ligue o interruptor do pulverizador de p\u00f3 e deixe entrar g\u00e1s nitrog\u00eanio. Quando o jato sair pelo tubo de refino, voc\u00ea pode inseri-lo, de modo que 3\/4 do alum\u00ednio fundido no forno se mova lentamente. Procure manter a estabilidade, n\u00e3o deixe pontos mortos e n\u00e3o permita que o jato toque no fundo do forno. A altura do jato deve ser mantida abaixo de 15 mm e o tempo de aplica\u00e7\u00e3o deve ser superior a 15 minutos.<\/p>\n

Refinamento, desgaseifica\u00e7\u00e3o e forma\u00e7\u00e3o de esc\u00f3ria; deixe repousar por 20 a 30 minutos antes de colocar o alum\u00ednio fundido para a fundi\u00e7\u00e3o.<\/p>\n

Depois que a esc\u00f3ria de alum\u00ednio for retirada do forno, ela deve ser rapidamente transferida para o recipiente de esc\u00f3ria, e o agente de escorifica\u00e7\u00e3o deve ser espalhado sobre a esc\u00f3ria de alum\u00ednio de acordo com a dosagem de 1 a 2 kg do agente por forno; a escorifica\u00e7\u00e3o deve ser realizada imediatamente, Para separar o metal da esc\u00f3ria de alum\u00ednio, despeje o alum\u00ednio l\u00edquido no molde de ferro fundido e deixe solidificar em lingotes de alum\u00ednio para uso.<\/p>\n

Ao refinar, desligue a pistola de \u00f3leo do queimador e interrompa o aquecimento.<\/p>\n

Na produ\u00e7\u00e3o cont\u00ednua, ap\u00f3s o enchimento de um forno com alum\u00ednio fundido, a v\u00e1lvula de drenagem de alum\u00ednio \u00e9 fechada, e o processo de fus\u00e3o do forno inferior \u00e9 realizado.<\/p>\n

Caso o efeito de refino e desgaseifica\u00e7\u00e3o n\u00e3o seja melhor, a Adtech oferece uma solu\u00e7\u00e3o online unidade de desgaseifica\u00e7\u00e3o<\/a> e filtro de espuma cer\u00e2mica<\/a>\u00a0sistema de filtragem para purifica\u00e7\u00e3o de alum\u00ednio fundido.<\/p>\n

\"Purifica\u00e7\u00e3o<\/p>\n

Unidade de desgaseifica\u00e7\u00e3o online<\/strong> \u00c9 utilizado principalmente para a remo\u00e7\u00e3o de hidrog\u00eanio (H) e esc\u00f3rias do alum\u00ednio fundido. Funciona com base no princ\u00edpio da flota\u00e7\u00e3o a g\u00e1s. O rotor injeta g\u00e1s inerte ou uma mistura de cloro e g\u00e1s inerte no alum\u00ednio fundido e fragmenta o g\u00e1s em min\u00fasculas bolhas dispersas; as bolhas sobem at\u00e9 a superf\u00edcie do alum\u00ednio fundido e, ao mesmo tempo, concluem a remo\u00e7\u00e3o das impurezas. O sistema de filtragem CFF \u00e9 utilizado para a filtragem e purifica\u00e7\u00e3o do alum\u00ednio fundido, em combina\u00e7\u00e3o com o filtro de espuma cer\u00e2mica. Ele \u00e9 capaz de filtrar as inclus\u00f5es e as part\u00edculas min\u00fasculas presentes no alum\u00ednio fundido.<\/p>","protected":false},"excerpt":{"rendered":"

The refining and degassing temperature is between 720-750\u2103. The amount of refining agent is calculated according to 0.1%-0.2% of the total mass of the aluminum…<\/p>","protected":false},"author":1,"featured_media":6585,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nRefining and Degassing Process for Molten Aluminum<\/title>\n<meta name=\"description\" content=\"The refining and degassing temperature is between 720-750\u2103.The amount of refining agent is calculated according to the aluminum melt.\" \/>\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-and-degassing\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" 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