{"id":9797,"date":"2021-08-05T02:59:35","date_gmt":"2021-08-05T02:59:35","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9797"},"modified":"2021-08-05T02:59:35","modified_gmt":"2021-08-05T02:59:35","slug":"metal-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/metal-refining\/","title":{"rendered":"Affinage des m\u00e9taux"},"content":{"rendered":"

La m\u00e9thode d'affinage du m\u00e9tal en fusion consiste \u00e0 utiliser des fondants pour obtenir un affinage efficace. Le processus d'affinage du m\u00e9tal transforme certaines impuret\u00e9s ou certains oxydes en compos\u00e9s et les s\u00e9pare du m\u00e9tal en fusion par vaporisation, projection ou flottation. Dans ce cas, \u00e0 mesure que l'affinage progresse, la teneur en impuret\u00e9s du m\u00e9tal en fusion devient tr\u00e8s faible. Nous fournissons flux de raffinage<\/a>, comprenant des fondants, des fondants \u00e0 scories et des fondants granul\u00e9s destin\u00e9s \u00e0 l'affinage du m\u00e9tal en fusion.<\/p>\n

Au cours de l'affinage, les composants vaporis\u00e9s se condensent partiellement et adh\u00e8rent \u00e0 la surface libre de la paroi du four d'affinage sous forme d'\u00e9cume. D'autres impuret\u00e9s non vaporis\u00e9es de l'\u00e9cume sont s\u00e9par\u00e9es et flottent \u00e0 la surface du m\u00e9tal en fusion. Lorsque le four est inclin\u00e9 pour d\u00e9verser le m\u00e9tal en fusion, le flux de m\u00e9tal en fusion emporte une partie de ces d\u00e9p\u00f4ts adh\u00e9rents et de ces \u00e9l\u00e9ments flottants, qui sont ainsi r\u00e9introduits dans la masse fondue. De plus, si le mat\u00e9riau r\u00e9fractaire ou le rev\u00eatement destin\u00e9 \u00e0 recevoir le m\u00e9tal en fusion n\u2019est pas suffisamment chauff\u00e9 avant l\u2019arriv\u00e9e du m\u00e9tal en fusion, celui-ci peut \u00eatre contamin\u00e9 par les composants gazeux actifs adsorb\u00e9s dans le rev\u00eatement. La partie du rev\u00eatement r\u00e9agit avec le m\u00e9tal en fusion activ\u00e9 par l\u2019affinage, ou est corrod\u00e9e par celui-ci. Le m\u00e9tal en fusion peut alors \u00eatre contamin\u00e9 par des produits de corrosion.<\/p>\n

Afin d'\u00e9viter la formation de tels d\u00e9p\u00f4ts et de tels objets flottants, il est n\u00e9cessaire de vidanger le m\u00e9tal en fusion par le fond du r\u00e9cipient d'affinage et de laisser une partie du m\u00e9tal en fusion dans le r\u00e9cipient pour emp\u00eacher que les impuret\u00e9s flottantes ne s'y m\u00e9langent \u00e0 nouveau.<\/p>\n

\"Filtre<\/p>\n

Une fois que le m\u00e9tal en fusion a \u00e9t\u00e9 d\u00e9vers\u00e9 du r\u00e9cipient, un filtre en mousse c\u00e9ramique<\/a> est utilis\u00e9 pour \u00e9liminer les inclusions non m\u00e9talliques fines. Ces m\u00e9thodes n'\u00e9tant pas efficaces pour tous les polluants r\u00e9import\u00e9s, elles doivent \u00eatre combin\u00e9es afin de traiter chacune des substances r\u00e9import\u00e9es \u00e9num\u00e9r\u00e9es ci-dessus.<\/p>\n

Les filtres en mousse c\u00e9ramique AdTech sont fabriqu\u00e9s \u00e0 partir de mousse Portiforium de qualit\u00e9 et de c\u00e9ramique de haute puret\u00e9. Ils permettent d'\u00e9liminer efficacement les impuret\u00e9s solides non m\u00e9talliques pr\u00e9sentes dans l'aluminium fondu et les alliages d'aluminium, au sein de votre industrie de la fonderie d'aluminium. L'utilisation de mat\u00e9riaux adapt\u00e9s aux hautes temp\u00e9ratures aura un impact positif sur votre productivit\u00e9 !<\/p>","protected":false},"excerpt":{"rendered":"

The method of molten metal refining is to use fluxes for effective refining. The metal refining process converts certain impurities or oxides into compounds and…<\/p>","protected":false},"author":1,"featured_media":9798,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nMetal Refining by Using Refining Flux or Granular Flux<\/title>\n<meta name=\"description\" content=\"The method of molten metal refining is to use fluxes for effective refining. 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