{"id":4724,"date":"2020-09-14T08:57:20","date_gmt":"2020-09-14T08:57:20","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4724"},"modified":"2020-09-14T08:57:20","modified_gmt":"2020-09-14T08:57:20","slug":"continuous-casting-technology","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/continuous-casting-technology\/","title":{"rendered":"Technologie de coul\u00e9e continue"},"content":{"rendered":"<p>La technologie de coul\u00e9e continue permet de produire directement le fil-machine, ce qui permet d'\u00e9liminer les \u00e9tapes de laminage ou d'extrusion ainsi que les op\u00e9rations en amont et en aval, de raccourcir le processus de production, de r\u00e9duire le nombre d'\u00e9quipements et de sites de production, d'acc\u00e9l\u00e9rer le cycle de production et de diminuer les co\u00fbts d'investissement et de production.<\/p>\n<p>Traditionnellement, les fils machine sont fabriqu\u00e9s \u00e0 partir de m\u00e9tal, et leur production s'effectue souvent en deux \u00e9tapes : la fabrication de lingots, puis celle des fils machine. Il existe de nombreuses m\u00e9thodes pour fabriquer des fils machine \u00e0 partir de lingots. Autrefois, on utilisait le proc\u00e9d\u00e9 de forgeage libre pour \u00e9tirer les lingots. Apr\u00e8s l\u2019apparition du laminage, le forgeage a \u00e9t\u00e9 progressivement abandonn\u00e9, et le laminage par passes est devenu la m\u00e9thode dominante pour la fabrication des fils-machines. La ligne de production par coul\u00e9e et laminage en continu permet, gr\u00e2ce \u00e0 la r\u00e9utilisation de la chaleur r\u00e9siduelle de la coul\u00e9e pour le laminage, d\u2019\u00e9conomiser l\u2019\u00e9nergie n\u00e9cessaire au r\u00e9chauffage. Ce proc\u00e9d\u00e9 s\u2019est aujourd\u2019hui consid\u00e9rablement d\u00e9velopp\u00e9 et est particuli\u00e8rement adapt\u00e9 \u00e0 la production \u00e0 grande \u00e9chelle de fils-lames d\u2019une seule vari\u00e9t\u00e9 et de sp\u00e9cifications uniformes ; en revanche, pour les fils-lames pr\u00e9sentant de nombreuses vari\u00e9t\u00e9s et produits en petits lots, c\u2019est la m\u00e9thode d\u2019extrusion qui est le plus souvent utilis\u00e9e.<\/p>\n<p>Cependant, la technologie de coul\u00e9e continue des fils-barres pr\u00e9sente encore de nombreux probl\u00e8mes. Par exemple, les caract\u00e9ristiques de solidification de la coul\u00e9e continue font que la partie centrale du lingot pr\u00e9sente in\u00e9vitablement des d\u00e9fauts tels que le retrait, la porosit\u00e9, la s\u00e9gr\u00e9gation et les inclusions.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4726\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1.jpg\" alt=\"Technologie de coul\u00e9e continue\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\u00c0 l'exception d'un petit nombre d'inclusions pr\u00e9sentes dans les lingots d'aluminium, qui proviennent des \u00e9quipements et des proc\u00e9d\u00e9s de production, l'aluminium se combine principalement avec l'oxyg\u00e8ne, l'azote, le carbone et le soufre \u00e0 l'\u00e9tat fondu pour former des oxydes, des nitrures, des carbures et des inclusions non m\u00e9talliques telles que des sulfures et des films d'oxyde. Par cons\u00e9quent, lors des op\u00e9rations de fusion et de coul\u00e9e, si les gaz dissous et les inclusions non m\u00e9talliques pr\u00e9sents dans l\u2019aluminium liquide ne sont pas trait\u00e9s correctement, des d\u00e9fauts m\u00e9tallurgiques tels que le manque de densit\u00e9, les inclusions et les pores appara\u00eetront dans le lingot d\u2019aluminium. L\u2019utilisation de <a href=\"http:\/\/www.alalloycasting.com\/fr\/flux-refining\/\">affinage par flux<\/a>, <a href=\"http:\/\/www.alalloycasting.com\/fr\/online-degassing-system\/\">syst\u00e8me de d\u00e9gazage en ligne<\/a>, et la technologie de filtration CFF permet \u00e9galement d'am\u00e9liorer l'\u00e9limination des gaz contenus dans les lingots d'aluminium utilis\u00e9s comme mati\u00e8re premi\u00e8re. Gr\u00e2ce \u00e0 ces mesures, la teneur en inclusions non m\u00e9talliques, telles que les gaz et les oxydes, dans les barres d'aluminium peut \u00eatre maintenue \u00e0 un niveau tr\u00e8s faible.<\/p>","protected":false},"excerpt":{"rendered":"<p>Continuous casting technology can directly prepare the wire rod, which can eliminate rolling or extrusion and its pre- and post-processes, shorten the production process, reduce&hellip;<\/p>","protected":false},"author":1,"featured_media":4725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4688],"class_list":["post-4724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-continuous-casting-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Continuous Casting Technology for Aluminum Wire 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