{"id":10523,"date":"2021-10-11T06:24:12","date_gmt":"2021-10-11T06:24:12","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10523"},"modified":"2021-10-11T06:24:12","modified_gmt":"2021-10-11T06:24:12","slug":"aluminum-alloy-slab-casting","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-alloy-slab-casting\/","title":{"rendered":"Coul\u00e9e de brames en alliage d'aluminium"},"content":{"rendered":"

Nous proposons des flux, des goulottes et des bacs en c\u00e9ramique, un syst\u00e8me de d\u00e9gazage en ligne, une unit\u00e9 de filtration CFF, une gamme de dispositifs de r\u00e9gulation de d\u00e9bit, ainsi que des accessoires pour plateformes de coul\u00e9e destin\u00e9s \u00e0 la production de brames en alliage d'aluminium.<\/p>\n

Les principales \u00e9tapes de la production de brames en alliage d'aluminium comprennent le dosage, la fusion, le maintien \u00e0 temp\u00e9rature, l'affinage, la coul\u00e9e et le recuit d'uniformisation des lingots.<\/p>\n

Le processus de base de la coul\u00e9e de brames en alliage d'aluminium se d\u00e9roule comme suit :<\/strong><\/p>\n

    \n
  1. Conform\u00e9ment aux exigences sp\u00e9cifiques relatives \u00e0 la composition chimique de l'alliage, on utilise de l'aluminium brut \u00e9lectrolytique liquide, un alliage interm\u00e9diaire et des d\u00e9chets de retour pour r\u00e9aliser le dosage, puis on proc\u00e8de \u00e0 la fusion dans le four de fusion, avant d'effectuer les op\u00e9rations de d\u00e9gazage et d'\u00e9limination des scories, d'agitation, de formation de scories et d'analyse par \u00e9chantillonnage.<\/li>\n
  2. Une fois la composition du mat\u00e9riau valid\u00e9e, l'aluminium en fusion est transf\u00e9r\u00e9 dans le four statique, o\u00f9 sont effectu\u00e9s les traitements correspondants de maintien de la temp\u00e9rature, de repos et d'affinage par d\u00e9gazage.<\/li>\n
  3. Par la suite, l'agent d'affinage du grain \u00e0 base de fil d'aluminium-titane-bore a \u00e9t\u00e9 ajout\u00e9 en continu dans la goulotte, et le traitement d'affinage du grain en ligne a \u00e9t\u00e9 lanc\u00e9.<\/li>\n
  4. Utiliser en ligne \u00e9quipement de d\u00e9gazage rotatif<\/a>\u00a0et CFF \u00e0 deux \u00e9tages filtre en c\u00e9ramique alv\u00e9ol\u00e9e<\/a> \u00e9quipements de d\u00e9gazage et de filtration en continu. Ensuite, l'aluminium liquide fini est recueilli par le cristalliseur, et la production de lingots s'effectue selon un proc\u00e9d\u00e9 de coul\u00e9e enti\u00e8rement automatis\u00e9, pour aboutir finalement \u00e0 l'obtention de brames.<\/li>\n<\/ol>\n

    Les brames d'alliage d'aluminium produites par les entreprises pr\u00e9sentent souvent des probl\u00e8mes de qualit\u00e9 tels que des fissures, des inclusions de scories, de la porosit\u00e9 et un grain grossier, ce qui a une incidence n\u00e9gative sur la transformation et la qualit\u00e9 des produits en alliage d'aluminium. C'est pourquoi il est d'une grande importance pratique de se pencher sur les processus de fusion et de coul\u00e9e des brames d'alliage d'aluminium, d'optimiser le contr\u00f4le des param\u00e8tres de production et d'am\u00e9liorer la qualit\u00e9 de coul\u00e9e de ces brames.<\/p>\n

    Le traitement de purification en continu de l'aluminium fondu avant la coul\u00e9e est appel\u00e9 \u00ab traitement de purification hors four \u00bb, \u00e9galement appel\u00e9 \u00ab traitement de purification en ligne de la masse fondue \u00bb. Par rapport au traitement en four, la purification en ligne offre un bon rendement de purification, le m\u00e9tal fondu est exempt de pollution secondaire, l'intensit\u00e9 du travail est faible et il n'y a pas de pollution. Associ\u00e9e \u00e0 la coul\u00e9e continue ou \u00e0 la coul\u00e9e et au laminage continus, elle permet de mettre en place une production de coul\u00e9e continue et automatis\u00e9e.<\/p>\n

    D'apr\u00e8s des statistiques incompl\u00e8tes : 99% du syst\u00e8me de purification en ligne situ\u00e9 \u00e0 l'ext\u00e9rieur du four est un dispositif de d\u00e9gazage rotatif sous la forme d'un d\u00e9gazeur, et plus de 95% du syst\u00e8me de filtration des scories utilise des plaques filtrantes en c\u00e9ramique alv\u00e9ol\u00e9e CFF.<\/p>","protected":false},"excerpt":{"rendered":"

    We offer fluxes, ceramic launder and trough, online degassing system, CFF filtering unit, flow control series, casting platform accessories for aluminum alloy slab production. 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