{"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\/fr\/molten-aluminum-purification-method\/","title":{"rendered":"Proc\u00e9d\u00e9 de purification de l'aluminium fondu"},"content":{"rendered":"

La m\u00e9thode courante de purification de l'aluminium fondu consiste \u00e0 relier, \u00e0 la sortie du four de fusion, la chambre de d\u00e9gazage et la chambre de filtration par un canal de coul\u00e9e, puis \u00e0 transf\u00e9rer le m\u00e9tal vers la plaque de moulage pour la coul\u00e9e. Dans ce processus, la goulotte est longue, et l'aluminium fondu g\u00e9n\u00e8re des scories et des gaz lorsqu'il traverse la goulotte et la plaque de moulage, ce qui affecte la qualit\u00e9 de l'aluminium fondu.<\/p>\n

Le proc\u00e9d\u00e9 de purification de l'aluminium fondu int\u00e8gre un dispositif de d\u00e9gazage et de filtration afin de r\u00e9duire la dur\u00e9e du goutti\u00e8re<\/a> autant que possible, ce qui permet d'atteindre l'objectif de r\u00e9duction de la contamination de l'aluminium fondu. L'aluminium fondu p\u00e9n\u00e8tre dans le unit\u00e9 de d\u00e9gazage<\/a> par la goulotte d'\u00e9coulement. Lorsque l'aluminium fondu remplit le bac de d\u00e9gazage jusqu'\u00e0 une certaine hauteur, l'azote p\u00e9n\u00e8tre dans le bain d'aluminium fondu \u00e0 travers les briques de ventilation, et l'op\u00e9ration de d\u00e9gazage et d'affinage commence.<\/p>\n

\"Purification<\/p>\n

Apr\u00e8s le d\u00e9gazage, la teneur en hydrog\u00e8ne de la masse fondue peut \u00eatre consid\u00e9rablement r\u00e9duite. Apr\u00e8s le d\u00e9gazage, l'aluminium fondu s'\u00e9coule vers la chambre de filtration situ\u00e9e \u00e0 c\u00f4t\u00e9 de la chambre de d\u00e9gazage. Placez la plaque filtrante en c\u00e9ramique alv\u00e9ol\u00e9e dans le caisson de filtration. Sous l'effet de la pression hydrostatique, il traverse la plaque filtrante et, une fois la premi\u00e8re filtration termin\u00e9e, il p\u00e9n\u00e8tre dans le r\u00e9servoir d'\u00e9coulement par la sortie d'eau. Afin d\u2019\u00e9viter le tourbillonnement et la formation de scories de l\u2019aluminium fondu en cas de chute importante, on n\u2019utilise pas la m\u00e9thode consistant \u00e0 cr\u00e9er une inclinaison excessive et un angle d\u2019angle entre la goulotte et le moule, mais on recourt \u00e0 la m\u00e9thode de la goulotte, et le tube de guidage est perc\u00e9 \u00e0 l\u2019extr\u00e9mit\u00e9 de celle-ci. L\u2019aluminium liquide s\u2019\u00e9coule dans la goulotte depuis le tuyau de refoulement, dont la sortie est immerg\u00e9e sous la surface du liquide dans la goulotte afin d\u2019\u00e9viter l\u2019oxydation et la formation de scories. L\u2019aluminium fondu est filtr\u00e9 \u00e0 travers la plaque filtrante par gravit\u00e9. En deux \u00e9tapes Filtration CFF<\/a> Il permet d'\u00e9liminer les impuret\u00e9s de taille sup\u00e9rieure \u00e0 10 \u03bcm et de purifier l'aluminium fondu. \u00c0 ce stade, les op\u00e9rations de d\u00e9gazage et de filtration sont termin\u00e9es. Une fois les \u00e9tapes susmentionn\u00e9es effectu\u00e9es, on obtient une barre coul\u00e9e pr\u00e9sentant un haut degr\u00e9 de purification.<\/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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