{"id":6380,"date":"2020-11-12T09:11:52","date_gmt":"2020-11-12T09:11:52","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6380"},"modified":"2020-11-12T09:11:52","modified_gmt":"2020-11-12T09:11:52","slug":"molten-aluminum-purification-method","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/molten-aluminum-purification-method\/","title":{"rendered":"M\u00e9todo de purifica\u00e7\u00e3o de alum\u00ednio fundido"},"content":{"rendered":"

O m\u00e9todo geral atual de purifica\u00e7\u00e3o do alum\u00ednio fundido \u00e9 o seguinte: ap\u00f3s o forno de fus\u00e3o, conecta-se a caixa de desgaseifica\u00e7\u00e3o e a caixa de filtragem por meio do canal de vazamento e, em seguida, transfere-se para a placa de moldagem para a fundi\u00e7\u00e3o. Nesse processo, o canal de vazamento \u00e9 longo, e o alum\u00ednio fundido gera esc\u00f3ria e g\u00e1s ao passar pelo canal e pela placa de moldagem, o que afeta a qualidade do alum\u00ednio fundido.<\/p>\n

O m\u00e9todo de purifica\u00e7\u00e3o do alum\u00ednio fundido integra um dispositivo de desgaseifica\u00e7\u00e3o e filtragem para reduzir a dura\u00e7\u00e3o do canal de fluxo<\/a> tanto quanto poss\u00edvel, alcan\u00e7ando assim o objetivo de reduzir a contamina\u00e7\u00e3o do alum\u00ednio fundido. O alum\u00ednio fundido entra no unidade de desgaseifica\u00e7\u00e3o<\/a> pelo canal de fluxo. Quando o alum\u00ednio fundido atinge uma determinada altura na caixa de desgaseifica\u00e7\u00e3o, o nitrog\u00eanio entra na massa de alum\u00ednio fundido atrav\u00e9s dos tijolos de ventila\u00e7\u00e3o, e a opera\u00e7\u00e3o de desgaseifica\u00e7\u00e3o e refino tem in\u00edcio.<\/p>\n

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

Ap\u00f3s a desgaseifica\u00e7\u00e3o, o teor de hidrog\u00eanio da massa fundida pode ser significativamente reduzido. Ap\u00f3s a desgaseifica\u00e7\u00e3o, o alum\u00ednio fundido flui para a c\u00e2mara de filtragem, localizada ao lado da c\u00e2mara de desgaseifica\u00e7\u00e3o. Coloque a placa filtrante de cer\u00e2mica espumosa na caixa de filtragem. Sob a a\u00e7\u00e3o da press\u00e3o hidrost\u00e1tica, ele passa pela placa filtrante e, ap\u00f3s a conclus\u00e3o da primeira filtragem, entra no tanque de fluxo pela sa\u00edda de \u00e1gua. Para evitar a agita\u00e7\u00e3o e a forma\u00e7\u00e3o de esc\u00f3ria no alum\u00ednio fundido em caso de queda acentuada, n\u00e3o se utiliza o m\u00e9todo de inclina\u00e7\u00e3o excessiva e \u00e2ngulo de canto da calha at\u00e9 o molde, mas sim o m\u00e9todo da calha, e o tubo-guia \u00e9 perfurado na extremidade da calha. O alum\u00ednio l\u00edquido flui para a calha a partir do tubo de vazamento, e a sa\u00edda do tubo fica submersa sob a superf\u00edcie l\u00edquida da calha para evitar oxida\u00e7\u00e3o e forma\u00e7\u00e3o de esc\u00f3ria. O alum\u00ednio fundido \u00e9 filtrado pela placa filtrante por a\u00e7\u00e3o da gravidade. Em duas etapas Filtragem CFF<\/a> pode remover impurezas com tamanho superior a 10 \u03bcm e purificar o alum\u00ednio fundido. At\u00e9 aqui, a opera\u00e7\u00e3o de desgaseifica\u00e7\u00e3o e filtragem est\u00e1 conclu\u00edda. Ap\u00f3s a realiza\u00e7\u00e3o das etapas acima mencionadas, \u00e9 poss\u00edvel obter uma barra fundida com alto grau de purifica\u00e7\u00e3o.<\/p>","protected":false},"excerpt":{"rendered":"

The current general molten aluminum purification method is: after the smelting furnace, connect the degassing box and the filter box through the launder, and then…<\/p>","protected":false},"author":1,"featured_media":6381,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6380","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nMolten Aluminum Purification Method Integrates Degassing and Filtering<\/title>\n<meta name=\"description\" content=\"The molten aluminum purification method is: after the smelting furnace, connect the degassing box and the filter box through the launder.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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