{"id":5055,"date":"2020-09-25T04:04:22","date_gmt":"2020-09-25T04:04:22","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5055"},"modified":"2020-09-25T05:34:55","modified_gmt":"2020-09-25T05:34:55","slug":"aluminum-purification-treatment","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-purification-treatment\/","title":{"rendered":"Traitement de purification de l'aluminium"},"content":{"rendered":"

Comme nous le savons tous, le traitement de purification de l\u2019aluminium se divise g\u00e9n\u00e9ralement en deux cat\u00e9gories : la purification en four et la purification en ligne, selon la chronologie de ce traitement. L\u2019affinage en four d\u00e9signe le processus par lequel la masse fondue d\u2019alliage d\u2019aluminium est affin\u00e9e dans un four afin d\u2019obtenir un effet de purification de cette masse fondue. Son principe de fonctionnement est le suivant : le gaz et les impuret\u00e9s pr\u00e9sents dans la masse fondue d\u2019alliage d\u2019aluminium r\u00e9agissent chimiquement afin d\u2019\u00e9liminer les impuret\u00e9s et de purifier le liquide. Les m\u00e9thodes utilis\u00e9es comprennent principalement la d\u00e9sa\u00e9ration en ligne et la filtration en ligne (telles que le syst\u00e8me de d\u00e9gazage rotatif et Syst\u00e8me de filtrage CFF<\/a>).<\/p>\n

Traitement de purification de l'aluminium<\/h2>\n

L'obtention d'un bain m\u00e9tallurgique de haute qualit\u00e9 avant sa solidification n\u00e9cessite une bonne coordination entre la purification en four et la purification en ligne. Il convient toutefois de noter que la purification en ligne de l'aluminium fondu est un processus continu. Le temps de s\u00e9jour de l\u2019aluminium fondu dans l\u2019\u00e9quipement de purification est limit\u00e9, ce qui se traduit par une marge de man\u0153uvre r\u00e9duite pour le contr\u00f4le de la qualit\u00e9 du liquide d\u2019aluminium, et rend l\u2019efficacit\u00e9 de la purification excessivement d\u00e9pendante de l\u2019\u00e9quipement. Parall\u00e8lement, ce proc\u00e9d\u00e9 pr\u00e9sente \u00e9galement un goulot d\u2019\u00e9tranglement au niveau du d\u00e9bit d\u2019aluminium fondu. De plus, la purification en ligne est plus sensible \u00e0 la purification effectu\u00e9e dans le four. Si le degr\u00e9 de purification de l\u2019aluminium fondu dans le four ne r\u00e9pond pas aux exigences du processus en aval, cela aura un impact consid\u00e9rable sur la purification en ligne. L\u2019efficacit\u00e9 de la purification en ligne de l\u2019aluminium fondu s\u2019en trouve consid\u00e9rablement r\u00e9duite, et la qualit\u00e9 m\u00e9tallurgique de la billette issue de la coul\u00e9e en aval ne peut \u00eatre garantie.<\/p>\n

\"Traitement<\/p>\n

De plus, une purification incompl\u00e8te dans le four r\u00e9duira la capacit\u00e9 de traitement de l'aluminium liquide par unit\u00e9 du dispositif de purification en ligne, et l'efficacit\u00e9 de la purification ne pourra pas \u00eatre garantie. Par ailleurs, la purification en four et la purification en ligne ont chacune leurs propres priorit\u00e9s en termes d'objets trait\u00e9s. Du point de vue de la taille des inclusions, la purification en four vise g\u00e9n\u00e9ralement les inclusions de grande taille, dont la taille des particules est sup\u00e9rieure \u00e0 40 \u03bcm. La purification en ligne concerne principalement les inclusions \u00e0 petites particules. Une purification en four efficace est tr\u00e8s b\u00e9n\u00e9fique pour la dur\u00e9e de vie et l\u2019efficacit\u00e9 de purification du dispositif de purification en ligne. Par cons\u00e9quent, une purification en four hautement efficace constitue un processus cl\u00e9 dans la purification de l\u2019aluminium fondu, et elle peut \u00e9galement cr\u00e9er des conditions favorables \u00e0 la purification en ligne qui suit. La purification en ligne est un compl\u00e9ment efficace \u00e0 la purification en four et permet de purifier davantage l\u2019aluminium fondu. Les deux processus s\u2019influencent et interagissent l\u2019un avec l\u2019autre.<\/p>","protected":false},"excerpt":{"rendered":"

As we all know, aluminum purification treatment is generally divided into furnace purification and online purification according to the time sequence of its purification treatment.…<\/p>","protected":false},"author":1,"featured_media":5104,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminum Purification Treatment by Furnace and Online Purification<\/title>\n<meta name=\"description\" content=\"Aluminum purification treatment generally divides into furnace purification and online purification according to the time sequence.\" \/>\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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