{"id":10681,"date":"2021-10-20T02:38:30","date_gmt":"2021-10-20T02:38:30","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10681"},"modified":"2021-10-20T02:38:30","modified_gmt":"2021-10-20T02:38:30","slug":"online-metal-degassing-device","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/online-metal-degassing-device\/","title":{"rendered":"Dispositif de d\u00e9gazage des m\u00e9taux en ligne"},"content":{"rendered":"

La masse d'aluminium en fusion est filtr\u00e9e par le dispositif de d\u00e9gazage en ligne et le dispositif de filtration, puis s'\u00e9coule dans le bac avant en vue de la coul\u00e9e et du laminage. Le dispositif de traitement en ligne de la masse d'aluminium en fusion se compose principalement d'un dispositif de d\u00e9gazage en ligne, d'un dispositif de filtration, d'un syst\u00e8me de commande \u00e9lectrique, d'un syst\u00e8me hydraulique, d'une armoire de commande du gaz raffin\u00e9 et d'une goulotte de raccordement.<\/p>\n

Le dispositif de d\u00e9gazage en continu des m\u00e9taux est utilis\u00e9 pour le d\u00e9gazage en continu et l'\u00e9limination des scories \u00e0 l'ext\u00e9rieur du four de la masse d'aluminium en fusion. \u00c0 la sortie du dispositif de d\u00e9gazage en continu, la teneur en hydrog\u00e8ne de la masse d'aluminium en fusion r\u00e9pond aux exigences du processus de coul\u00e9e.<\/p>\n

Proc\u00e9d\u00e9 de d\u00e9gazage des m\u00e9taux en ligne<\/strong><\/p>\n

Un certain d\u00e9bit de gaz inerte est inject\u00e9 dans l'aluminium fondu. Un m\u00e9canisme rotatif disperse le gaz inject\u00e9 en minuscules bulles, qui se diffusent uniform\u00e9ment et remontent dans l'aluminium fondu, \u00e9liminant ainsi efficacement l'hydrog\u00e8ne pr\u00e9sent dans celui-ci. Parall\u00e8lement, lors de la remont\u00e9e des petites bulles, la tension superficielle de celles-ci permet \u00e9galement d'extraire certaines inclusions de la masse fondue. Gr\u00e2ce \u00e0 l'agitation provoqu\u00e9e par la t\u00eate de jet rotative dans la masse fondue, la r\u00e9partition des \u00e9l\u00e9ments d'alliage dans celle-ci peut \u00eatre rendue plus homog\u00e8ne.<\/p>\n

\"\"<\/p>\n

Structure d'un dispositif de d\u00e9gazage des m\u00e9taux en ligne<\/strong><\/p>\n

Le corps de la bo\u00eete du site en ligne unit\u00e9 de d\u00e9gazage<\/a> Il est compos\u00e9 d'une coque en acier, d'un rev\u00eatement en b\u00e9ton de coul\u00e9e \u00e0 haute teneur en aluminium et haute performance, etc. Il r\u00e9siste \u00e0 l'\u00e9rosion par l'aluminium liquide, ne colle pas \u00e0 l'aluminium et ne r\u00e9agit pas chimiquement avec celui-ci.<\/p>\n

On utilise la m\u00e9thode de chauffage par immersion. La tige en carbure de silicium est plac\u00e9e dans un manchon de protection en mat\u00e9riau sp\u00e9cial, et l'ensemble est install\u00e9 dans la cuve du four afin de chauffer et de maintenir l'aluminium fondu par convection ; il n'est donc pas n\u00e9cessaire de vidanger l'aluminium fondu lors de l'arr\u00eat de la machine.<\/p>\n

L'ensemble rotor en graphite est compos\u00e9 d'une buse rotative et d'un arbre rotatif fabriqu\u00e9s en graphite de haute puret\u00e9 r\u00e9sistant \u00e0 l'oxydation. Sa structure particuli\u00e8re est ing\u00e9nieusement adapt\u00e9e \u00e0 une chambre de raffinage sp\u00e9cialement con\u00e7ue, de sorte que les bulles g\u00e9n\u00e9r\u00e9es pr\u00e9sentent une meilleure dispersibilit\u00e9 et permettent de ralentir leur vitesse de remont\u00e9e, d\u2019augmenter la probabilit\u00e9 que les bulles pi\u00e9gent l\u2019hydrog\u00e8ne et les impuret\u00e9s, tout en \u00e9vitant la formation de tourbillons \u00e0 la surface de la masse fondue, afin d\u2019obtenir un d\u00e9gazage, une \u00e9limination des scories et une r\u00e9duction des m\u00e9taux alcalins efficaces.<\/p>\n

Le four de raffinage est divis\u00e9 en une chambre de raffinage \u00e0 deux \u00e9tages et une chambre de conservation de la chaleur par une cloison dot\u00e9e d'une excellente conductivit\u00e9 thermique ; chaque chambre est \u00e9quip\u00e9e d'une porte de d\u00e9chargement des scories mobile et pratique, permettant d'\u00e9vacuer les scories \u00e0 tout moment.<\/p>\n

Le dispositif de levage \u00e0 v\u00e9rin hydraulique permet de soulever s\u00e9par\u00e9ment l'ensemble rotor en graphite et de le faire pivoter de 180 degr\u00e9s, ce qui facilite l'entretien et le remplacement du rotor en graphite. L'\u00e9l\u00e9ment chauffant et son manchon de protection peuvent \u00eatre soulev\u00e9s d'un seul bloc \u00e0 l'aide d'une force externe, puis remplac\u00e9s.<\/p>","protected":false},"excerpt":{"rendered":"

The aluminum melt is filtered by the online metal degassing device and the filtering device, and then flows into the front box for casting and…<\/p>","protected":false},"author":1,"featured_media":10682,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nOnline Metal Degassing Device -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The aluminum melt is filtered by the online metal degassing device and filtering device, then flows into the front box for casting.\" \/>\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\/online-metal-degassing-device\/\" \/>\n<meta property=\"og:locale\" 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