{"id":11084,"date":"2021-11-09T03:08:00","date_gmt":"2021-11-09T03:08:00","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11084"},"modified":"2022-03-09T02:42:12","modified_gmt":"2022-03-09T02:42:12","slug":"ceramic-caster-tip","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/ceramic-caster-tip\/","title":{"rendered":"Embout de roulette en c\u00e9ramique"},"content":{"rendered":"

L'embout de coul\u00e9e en c\u00e9ramique, en tant qu\u201c\u201d \u00e9l\u00e9ment de gorge \u00bb charg\u00e9 d'acheminer le m\u00e9tal en fusion vers le laminoir \u00e0 coul\u00e9e continue \u00e0 haut d\u00e9bit, joue un r\u00f4le tr\u00e8s important. D\u00e8s l'apparition de probl\u00e8mes tels que le colmatage de la buse de coul\u00e9e, la machine ne peut \u00eatre arr\u00eat\u00e9e que pour permettre son remplacement, ce qui entra\u00eene une interruption de la production, un gaspillage de main-d'\u0153uvre et de ressources mat\u00e9rielles, ainsi qu'une baisse de l'efficacit\u00e9 de la production.<\/p>\n

La coul\u00e9e et le laminage en continu \u00e0 haut d\u00e9bit (HTCR) pr\u00e9sentent des avantages tels qu\u2019un processus court, des \u00e9conomies d\u2019\u00e9nergie et un faible co\u00fbt de production, entre autres, et sont de plus en plus adopt\u00e9s et mis en \u0153uvre par des entreprises dans divers pays. L'aluminium liquide \u00e9lectrolytique passe par une machine de coul\u00e9e continue \u00e0 haut d\u00e9bit et un laminage continu \u00e0 chaud en trois \u00e9tapes pour former directement une brame de 2 mm \u00e0 8 mm d'\u00e9paisseur, le d\u00e9bit d'aluminium fondu pouvant atteindre 50 t\/h.<\/p>\n

\"\"<\/p>\n

Gr\u00e2ce au d\u00e9veloppement et aux avanc\u00e9es de la science et de la technologie, des progr\u00e8s remarquables ont \u00e9t\u00e9 r\u00e9alis\u00e9s dans le traitement de l'aluminium en fusion. Dans le processus de production HTCR, une s\u00e9rie de traitements de d\u00e9gazage et de filtration<\/a> sont effectu\u00e9es sur l'aluminium liquide \u00e9lectrolytique afin d'\u00e9liminer les inclusions qu'il contient, ce qui permet d'obtenir un aluminium liquide plus pur. Dans une certaine mesure, cela permet de garantir que la masse fondue passe par le buse de coul\u00e9e<\/a>\u00a0sans encombre, mais le colmatage de la buse reste le principal probl\u00e8me rencontr\u00e9 dans le processus de production de l'alliage d'aluminium HTCR.<\/p>\n

Le proc\u00e9d\u00e9 de coul\u00e9e-laminage exige que la structure interne de la buse de coul\u00e9e en c\u00e9ramique soit telle que, lorsque le m\u00e9tal en fusion la traverse, le trac\u00e9 de l'\u00e9coulement soit optimal et qu'il n'y ait pas d'angle mort. Le m\u00e9tal en fusion doit \u00eatre r\u00e9parti uniform\u00e9ment entre les interstices des rouleaux, et sa temp\u00e9rature \u00e0 l'entr\u00e9e de ces interstices doit \u00eatre homog\u00e8ne. \u00c0 l'issue d'analyses et de recherches, compte tenu du fait que la section du diviseur doit s'\u00e9largir progressivement \u00e0 l'int\u00e9rieur de la buse et que la section de sortie doit \u00eatre la plus \u00e9troite possible, ainsi que de la plan\u00e9it\u00e9 du bloc diviseur, il a \u00e9t\u00e9 d\u00e9cid\u00e9 d'utiliser la m\u00eame hauteur aux extr\u00e9mit\u00e9s avant et arri\u00e8re de la buse, et de ne mettre en place des plans inclin\u00e9s vers le haut et vers le bas qu'\u00e0 la sortie de la buse \u00e0 embout rotatif<\/a>. La r\u00e9duction de la section transversale de la sortie de la buse permet de simplifier consid\u00e9rablement la conception et l'usinage de celle-ci.<\/p>","protected":false},"excerpt":{"rendered":"

The ceramic caster tip, as the “throat component” that feeds the aluminum melt into the high-throughput continuous casting and rolling mill, plays a very important…<\/p>","protected":false},"author":1,"featured_media":11085,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[12788,12787],"class_list":["post-11084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-fiber-castertip","tag-aluminum-silicate-feeding-tip-and-nozzle","tag-ceramic-caster-tip"],"yoast_head":"\nCeramic Caster Tip, Aluminum Silicate Feeding Tip and Nozzle<\/title>\n<meta name=\"description\" content=\"The ceramic caster tip, as the "throat component" that feeds the aluminum melt into the casting and rolling mill, plays a very important role.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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