{"id":8576,"date":"2021-04-28T06:35:39","date_gmt":"2021-04-28T06:35:39","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8576"},"modified":"2021-04-28T06:35:39","modified_gmt":"2021-04-28T06:35:39","slug":"casting-nozzle-gasket","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/casting-nozzle-gasket\/","title":{"rendered":"Joint de buse de coul\u00e9e"},"content":{"rendered":"<p>Le joint de la buse de coul\u00e9e est un \u00e9l\u00e9ment essentiel de la machine de coul\u00e9e continue de bandes d'aluminium. Il influe directement sur la qualit\u00e9 de la bande et sur le taux de rendement de la production.<\/p>\n<p>Par rapport \u00e0 la surface en fibre c\u00e9ramique de la buse d'alimentation, le tissu en fibre de verre \u00e0 mailles serr\u00e9es qui recouvre la surface du joint de la buse de coul\u00e9e est plus lisse et moins agressif ou abrasif. Le tissu du coussin produit beaucoup moins de rayures sur le rouleau que le mat\u00e9riau de la buse d\u2019alimentation. L\u2019orientation des fibres de la t\u00eate d\u2019alimentation est al\u00e9atoire, et les extr\u00e9mit\u00e9s saillantes s\u2019usent facilement au contact de la surface du rouleau de coul\u00e9e. Compar\u00e9e \u00e0 la fibre c\u00e9ramique d\u2019alumine couramment utilis\u00e9e pour fabriquer les t\u00eates d\u2019alimentation, la silice de la fibre de verre est plus lisse et moins abrasive. Les fibres ont \u00e9galement tendance \u00e0 \u00eatre plus proches de la tangente au rouleau, ce qui minimise le contact des extr\u00e9mit\u00e9s abrasives des fibres avec la surface du rouleau.<\/p>\n<p>La couche de mat\u00e9riau en fibre c\u00e9ramique comprend un mat\u00e9riau de type papier contenant un composant min\u00e9ral r\u00e9sistant aux hautes temp\u00e9ratures qui se dilate lorsqu'il est chauff\u00e9. Le joint en c\u00e9ramique d'alumine est fabriqu\u00e9 \u00e0 partir d'un mat\u00e9riau fibreux de haute puret\u00e9 ; il s'agit des pi\u00e8ces moul\u00e9es du <a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-fiber-castertip\/\">embout de coul\u00e9e en fibre c\u00e9ramique<\/a>.<\/p>\n<p>Lorsqu\u2019ils sont fix\u00e9s le long du bord de la buse d\u2019alimentation, les joints de buse de coul\u00e9e fabriqu\u00e9s dans ce mat\u00e9riau sont pratiquement plats. Lors de la premi\u00e8re utilisation de la t\u00eate d\u2019alimentation, lorsque l\u2019eau d\u2019aluminium est chauff\u00e9e, le mat\u00e9riau du joint se dilate, et la surface ext\u00e9rieure de chaque joint de buse de coul\u00e9e vient \u00e9pouser la surface du rouleau adjacent. La surface du joint \u00e9pouse la courbure du rouleau et forme un \u201c joint d'\u00e9tanch\u00e9it\u00e9 \u201d serr\u00e9 avec celui-ci. La partie aval permet au joint de s'effiler en fonction de la forme du rouleau de coul\u00e9e continue et du bord aval de l'\u00e9l\u00e9ment de buse d'alimentation.<\/p>\n<p>Le joint de la buse de coul\u00e9e offre une surface plus lisse et moins corrosive sur le rouleau, ce qui permet de r\u00e9duire au minimum les rayures. Le mat\u00e9riau du joint r\u00e9duit \u00e9galement la d\u00e9formation globale de la buse d'alimentation, ce qui diminue encore davantage le risque que celle-ci racle la paire de roulettes.<\/p>","protected":false},"excerpt":{"rendered":"<p>The casting nozzle gasket is a key component of the aluminum strip continuous casting machine. It directly affects the quality of the strip and the&hellip;<\/p>","protected":false},"author":1,"featured_media":8598,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Casting Nozzle Gasket -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The casting nozzle gasket is a key component of the aluminum strip continuous casting machine. 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