{"id":7014,"date":"2020-12-15T06:32:47","date_gmt":"2020-12-15T06:32:47","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7014"},"modified":"2020-12-15T06:32:47","modified_gmt":"2020-12-15T06:32:47","slug":"refining-process-for-molten-metal","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/refining-process-for-molten-metal\/","title":{"rendered":"Proc\u00e9d\u00e9 d'affinage du m\u00e9tal en fusion"},"content":{"rendered":"

Dans les m\u00e9taux et alliages obtenus par fusion, en raison du choix des mat\u00e9riaux utilis\u00e9s, on trouve souvent, outre les composants m\u00e9talliques n\u00e9cessaires, des m\u00e9taux et des composants non m\u00e9talliques nocifs ou ind\u00e9sirables. Comme chacun le sait, les impuret\u00e9s pr\u00e9sentes dans le m\u00e9tal en fusion, telles que le soufre, l\u2019oxyg\u00e8ne, l\u2019hydrog\u00e8ne, l\u2019azote, etc., ont une incidence consid\u00e9rable sur la qualit\u00e9 du produit final. C\u2019est pourquoi on proc\u00e8de souvent \u00e0 un processus d\u2019affinage secondaire, qui consiste \u00e0 purifier davantage le m\u00e9tal en fusion pr\u00e9lev\u00e9 du four.<\/p>\n

Le pr\u00e9sent proc\u00e9d\u00e9 de raffinage permet d'\u00e9liminer m\u00eame les traces de composants m\u00e9talliques et non m\u00e9talliques (\u00e9l\u00e9ments) nocifs et superflus gr\u00e2ce \u00e0 un raffinage en atmosph\u00e8re inerte, associ\u00e9 \u00e0 un chauffage par \u00e9lectrode et \u00e0 une agitation forc\u00e9e.<\/p>\n

Pour atteindre cet objectif, l'\u00e9tape de raffinage comprend les \u00e9tapes suivantes :<\/p>\n

    \n
  1. Versez le m\u00e9tal en fusion \u00e0 affiner avec flux de raffinage<\/a>\u00a0dans une cuve de raffinage \u00e9quip\u00e9e d'au moins une \u00e9lectrode de chauffage et d'un dispositif d'injection de gaz inerte ;<\/li>\n
  2. Le premier proc\u00e9d\u00e9 d'affinage, qui consiste \u00e0 faire r\u00e9agir le m\u00e9tal en fusion avec le fondant en chauffant ce dernier \u00e0 l'aide d'une \u00e9lectrode chauffante, tout en maintenant l'int\u00e9rieur du r\u00e9cipient d'affinage sous atmosph\u00e8re inerte ;<\/li>\n
  3. Un deuxi\u00e8me processus d'affinage, qui consiste notamment \u00e0 incliner la cuve d'affinage afin de plonger le tube d'injection du dispositif d'injection de gaz inerte dans le m\u00e9tal en fusion, puis \u00e0 y injecter du gaz inerte ;<\/li>\n
  4. Le m\u00e9tal en fusion ainsi raffin\u00e9 est retir\u00e9 du r\u00e9cipient de raffinage.<\/li>\n<\/ol>\n

    Pour mener \u00e0 bien ce processus d'affinage, on utilise un r\u00e9cipient d'affinage basculant, adapt\u00e9 au chargement du m\u00e9tal en fusion et du fondant \u00e0 affiner, et un nombre appropri\u00e9 d'\u00e9lectrodes est dispos\u00e9 sur la partie sup\u00e9rieure du r\u00e9cipient. Le r\u00e9cipient d'affinage sert \u00e0 chauffer le m\u00e9tal en fusion qu'il contient et est \u00e9quip\u00e9 d'un dispositif d'injection de gaz inerte. La buse d'injection n'est pas immerg\u00e9e dans le m\u00e9tal en fusion lors du chargement de celui-ci, mais ne l'est que lorsque le r\u00e9cipient est inclin\u00e9 en vue de l'injection.<\/p>","protected":false},"excerpt":{"rendered":"

    In the metals and alloys obtained by melting, due to the selection of materials used, in addition to the necessary metal components, harmful or unnecessary…<\/p>","protected":false},"author":1,"featured_media":7015,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nRefining Process for Molten Metal Purification | Flux Refining<\/title>\n<meta name=\"description\" content=\"In the refining process for molten metal, refining flux can react the impurities contained in molten metal, and achieve the purification.\" \/>\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\/fr\/refining-process-for-molten-metal\/\" 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