{"id":10045,"date":"2021-08-24T08:33:10","date_gmt":"2021-08-24T08:33:10","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10045"},"modified":"2021-08-24T08:33:10","modified_gmt":"2021-08-24T08:33:10","slug":"metal-burning-loss","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/metal-burning-loss\/","title":{"rendered":"Perte par combustion des m\u00e9taux"},"content":{"rendered":"

Au cours du processus de coul\u00e9e, la perte par combustion de l'aluminium fondu est in\u00e9vitable, mais la perte d'aluminium m\u00e9tallique qui en r\u00e9sulte ne peut \u00eatre n\u00e9glig\u00e9e. La r\u00e9duction des pertes par oxydation du m\u00e9tal en fusion devient donc un enjeu crucial. Il est n\u00e9cessaire de contr\u00f4ler rigoureusement la temp\u00e9rature de l\u2019aluminium en fusion, de r\u00e9duire les perturbations subies par celui-ci en am\u00e9liorant la m\u00e9thode de m\u00e9lange, d\u2019organiser la production de mani\u00e8re raisonnable et compacte, de raccourcir le temps de contact de l\u2019aluminium fondu avec l\u2019air, de renforcer l\u2019entretien des \u00e9quipements de coul\u00e9e, de maintenir les conditions de fonctionnement de ces derniers et d\u2019optimiser le processus de coul\u00e9e. Le mouvement de contre-courant de l\u2019alliage d\u2019aluminium aura un effet significatif sur la r\u00e9duction efficace des pertes par combustion de l\u2019aluminium fondu au cours du processus de coul\u00e9e.<\/p>\n

Comment r\u00e9duire les pertes par combustion du m\u00e9tal ?<\/strong><\/p>\n

Contr\u00f4ler rigoureusement et r\u00e9guler rapidement la temp\u00e9rature de l'aluminium liquide brut afin de r\u00e9pondre aux besoins de la production de pi\u00e8ces moul\u00e9es. Une fois que l\u2019aluminium fondu \u00e0 haute temp\u00e9rature a \u00e9t\u00e9 inject\u00e9 dans le four de m\u00e9lange, le mat\u00e9riau froid est ajout\u00e9 en temps voulu afin de ramener la temp\u00e9rature de l\u2019aluminium fondu \u00e0 730 \u2103, ce qui permet de r\u00e9duire efficacement l\u2019influence de la temp\u00e9rature sur la combustion par oxydation.<\/p>\n

Renforcer la gestion de agents de raffinage<\/a>, les alliages-ma\u00eetres et autres mat\u00e9riaux de charge, emp\u00eachent les impuret\u00e9s de se m\u00e9langer aux mat\u00e9riaux de charge, garantissent la propret\u00e9 de ces derniers et r\u00e9duisent la formation d'oxydes m\u00e9talliques et non m\u00e9talliques pendant le processus de fusion.<\/p>\n

\"Affinage<\/p>\n

Am\u00e9liorer la m\u00e9thode d'agitation de l'aluminium fondu. Lors de la mise en \u0153uvre de l'op\u00e9ration d\u201c\u201d agitation \u00e0 porte ferm\u00e9e \u00bb, le niveau de perturbation de l'aluminium fondu est bien moindre que celui de l'agitation m\u00e9canique, ce qui r\u00e9duit le contact entre l'aluminium fondu et l'air pendant l'agitation. Cela permet non seulement de r\u00e9duire la r\u00e9action d'oxydation entre l'air et l'aluminium fondu, mais aussi de limiter l'absorption d'hydrog\u00e8ne par l'aluminium fondu et de maintenir la solubilit\u00e9 de l'hydrog\u00e8ne dans l'aluminium fondu \u00e0 un niveau minimal. Cela contribue non seulement \u00e0 l'am\u00e9lioration de la qualit\u00e9 du produit, mais permet \u00e9galement de r\u00e9duire efficacement les pertes par combustion de l'aluminium fondu.<\/p>\n

Utilisation blanchisseries DC<\/a> Dans la mesure du possible, r\u00e9duisez les coudes superflus et raccourcissez au maximum la longueur de la conduite de travail des canaux. Recouvrez la cellule de d\u00e9bit d'un panneau en fibres de silicate d'aluminium.<\/p>\n

La r\u00e9cup\u00e9ration et le tri en temps opportun des d\u00e9chets, des projections d'aluminium et des r\u00e9sidus d'aluminium pr\u00e9sents dans les scories oxyd\u00e9es g\u00e9n\u00e9r\u00e9es au cours du processus de production, ainsi que leur introduction de mani\u00e8re appropri\u00e9e dans le four de m\u00e9lange en vue d'une refonte, constituent \u00e9galement un moyen de r\u00e9duire les pertes par combustion du m\u00e9tal.<\/p>","protected":false},"excerpt":{"rendered":"

During the casting process, the metal burning loss of molten aluminum is inevitable, but the resulting loss of metallic aluminum cannot be ignored. How to…<\/p>","protected":false},"author":1,"featured_media":10046,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12497,12496],"class_list":["post-10045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-casting-production-process","tag-metal-burning-loss"],"yoast_head":"\nMetal Burning Loss, Aluminum Casting Production Process<\/title>\n<meta name=\"description\" content=\"During the casting process, the metal burning loss of molten aluminum is inevitable, but the resulting loss cannot be ignored.\" \/>\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\/metal-burning-loss\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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