flux<\/a>, des scories ou divers gaz, etc., sont introduits dans le bain de fusion, et ces corps \u00e9trangers auront un impact n\u00e9gatif sur les performances du mat\u00e9riau lors du processus de solidification qui suit. Il convient donc de les \u00e9liminer autant que possible au cours de l'op\u00e9ration de fusion secondaire de l'aluminium.<\/p>\n(3) La temp\u00e9rature est ad\u00e9quate. Lors de la fusion de l'aluminium et des alliages d'aluminium, ceux-ci, qui se pr\u00e9sentent sous forme solide \u00e0 temp\u00e9rature ambiante, sont chauff\u00e9s \u00e0 une temp\u00e9rature sup\u00e9rieure \u00e0 leur point de fusion afin de provoquer un changement de phase et de les transformer en \u00e9tat liquide. \u00c0 haute temp\u00e9rature, l\u2019aluminium et les alliages d\u2019aluminium, ainsi que leur environnement, subissent divers effets dus \u00e0 l\u2019augmentation de l\u2019activit\u00e9 chimique, ce qui entra\u00eene une contamination de la masse fondue ; ces changements sont irr\u00e9versibles et ont un impact n\u00e9gatif sur les performances de l\u2019aluminium et des alliages d\u2019aluminium. Par cons\u00e9quent, au cours du processus de fusion, la temp\u00e9rature doit \u00eatre contr\u00f4l\u00e9e de mani\u00e8re \u00e0 la r\u00e9duire autant que possible, tout en respectant les exigences de solidification ult\u00e9rieures, afin de limiter l\u2019impact sur la qualit\u00e9 de la masse fondue.<\/p>","protected":false},"excerpt":{"rendered":"
The secondary aluminium smelting is to add a certain proportion of aluminum and aluminum alloy scraps into the smelting furnace, and after rapid melting, the…<\/p>","protected":false},"author":1,"featured_media":10298,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10297","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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