flux de raffinage<\/a> Il convient d'ajouter cet agent d'affinage au cours du processus de fusion afin de garantir que les \u00e9l\u00e9ments chimiques pr\u00e9sents dans l'alliage d'aluminium fondu r\u00e9pondent aux exigences sp\u00e9cifi\u00e9es. En r\u00e8gle g\u00e9n\u00e9rale, la proportion d'agent d'affinage ajout\u00e9e est comprise entre 10% et 15% du poids de la perte au feu. Par exemple, il convient d\u2019ajouter entre 8 kg et 12 kg d\u2019agent d\u2019affinage \u00e0 chaque op\u00e9ration d\u2019affinage dans un four de fusion central de 2 tonnes afin de garantir que la composition chimique de l\u2019aluminium fondu r\u00e9ponde aux exigences.<\/p>\n![\"Proc\u00e9d\u00e9](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Melting-Process-of-Aluminum-Alloy-1.jpg\")
<\/p>\n
Dans le processus de moulage sous pression, les mat\u00e9riaux recycl\u00e9s sont g\u00e9n\u00e9ralement class\u00e9s en deux cat\u00e9gories : primaires et secondaires, en fonction de leur teneur en gaz d\u2019impuret\u00e9s. Les mat\u00e9riaux dits \u00ab primaires \u00bb d\u00e9signent les chutes de moulage et les pi\u00e8ces non conformes, qui contiennent relativement peu d\u2019impuret\u00e9s et d\u2019air, et peuvent \u00eatre directement recycl\u00e9s et refondus dans les usines de moulage sous pression. Les mati\u00e8res secondaires d\u00e9signent les plaques d'\u00e9vacuation et les rainures d'\u00e9vacuation pr\u00e9sentes dans le moule de moulage sous pression, qui servent principalement \u00e0 l'\u00e9vacuation et \u00e0 l'\u00e9limination des impuret\u00e9s au cours du processus de moulage sous pression. Elles ne peuvent pas \u00eatre fondues directement dans l'usine de moulage sous pression, sous peine de nuire gravement \u00e0 la qualit\u00e9 de l'aluminium liquide.<\/p>\n
Dans le processus de production r\u00e9el des entreprises de moulage sous pression, la mise en \u0153uvre stricte d\u2019un rapport de 8:2 entra\u00eene souvent un surstock important de mati\u00e8res secondaires au cours du processus de production, ce qui augmente consid\u00e9rablement les co\u00fbts de production. Par cons\u00e9quent, dans la pratique, l\u2019entreprise peut ajuster ce rapport de proportion par le biais de v\u00e9rifications exp\u00e9rimentales, ce qui permet non seulement de garantir la qualit\u00e9 de l\u2019aluminium liquide, mais aussi de r\u00e9duire efficacement les co\u00fbts de production et d\u2019am\u00e9liorer le rendement. Toutefois, le principe veut que la proportion de mat\u00e9riaux recycl\u00e9s ne d\u00e9passe pas 40%. Les exp\u00e9riences montrent que la composition chimique de l\u2019aluminium liquide ne peut plus \u00eatre garantie de mani\u00e8re efficace au-del\u00e0 de 40% de raffinage.<\/p>","protected":false},"excerpt":{"rendered":"
In the melting process of aluminum alloy, the furnace temperature is usually higher than 800 \u2103, the chemical elements in the aluminum alloy materials will…<\/p>","protected":false},"author":1,"featured_media":4954,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-4952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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