{"id":5848,"date":"2020-10-20T09:32:20","date_gmt":"2020-10-20T09:32:20","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5848"},"modified":"2020-10-20T09:32:20","modified_gmt":"2020-10-20T09:32:20","slug":"ceramic-foam-filter-filtering","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-filtering\/","title":{"rendered":"Filtration \u00e0 l'aide d'un filtre en mousse c\u00e9ramique"},"content":{"rendered":"

Les inclusions non m\u00e9talliques pr\u00e9sentes dans la masse d'aluminium en fusion provoquent l'apparition de stries et de piq\u00fbres \u00e0 la surface lors du laminage de la feuille d'aluminium. Les stries superficielles font \u00e9galement partie des d\u00e9fauts tol\u00e9r\u00e9s sur les supports de plaques PS de haute qualit\u00e9. Afin de r\u00e9pondre aux exigences des \u00e9bauches de feuille d\u2019aluminium haut de gamme et des supports de plaques PS, la r\u00e9duction des inclusions non m\u00e9talliques dans les masses d\u2019aluminium fondu ainsi que la d\u00e9tection de la taille et de la r\u00e9partition des inclusions m\u00e9talliques dans ces masses sont devenues des \u00e9tapes cruciales dans la production de feuille d\u2019aluminium. L'objectif de la filtration est d'\u00e9liminer les inclusions non m\u00e9talliques pr\u00e9sentes dans le bain d'aluminium fondu. Dans les processus de coul\u00e9e et de laminage, la plupart des fabricants utilisent cette\u00a0filtre en mousse c\u00e9ramique<\/a>\u00a0m\u00e9thode de filtrage.<\/p>\n

Le filtre en mousse c\u00e9ramique AdTech se caract\u00e9rise par sa facilit\u00e9 d'utilisation, sa faible perte de charge initiale, son efficacit\u00e9 de filtration sup\u00e9rieure et son prix relativement abordable, ce qui explique son utilisation g\u00e9n\u00e9ralis\u00e9e. \u00c0 l'heure actuelle, le dispositif de filtration CFF couramment utilis\u00e9 pour l'aluminium en fusion est constitu\u00e9 d'une plaque filtrante en c\u00e9ramique poreuse \u00e0 double couche. L'efficacit\u00e9 de la filtration d\u00e9pend du passage progressif de l'aluminium en fusion \u00e0 travers la plaque filtrante, ainsi que de la combinaison du nombre de trous de la plaque filtrante monocouche et de celui de la plaque filtrante \u00e0 double couche.<\/p>\n

\"Filtration<\/p>\n

Dans la pratique industrielle, il est possible de choisir des mat\u00e9riaux filtrants pr\u00e9sentant diff\u00e9rentes tailles de pores et de modifier le mode d\u2019installation du filtre afin de faire varier le coefficient cin\u00e9tique de filtration. Choisissez des mat\u00e9riaux filtrants de diff\u00e9rentes \u00e9paisseurs pour modifier leur capacit\u00e9 \u00e0 retenir les inclusions. En utilisant des mat\u00e9riaux filtrants pr\u00e9sentant des diam\u00e8tres de pores vari\u00e9s, optez pour une combinaison judicieuse allant des grands pores aux petits pores ; c'est-\u00e0-dire modifiez simultan\u00e9ment les param\u00e8tres de filtration tout en augmentant l'\u00e9paisseur du filtre et le nombre d'\u00e9tages de filtration, afin de renforcer la capacit\u00e9 de r\u00e9tention des inclusions. Augmentez la section transversale de l'\u00e9coulement, r\u00e9duisez le d\u00e9bit de la masse fondue, augmentez la probabilit\u00e9 de capturer les inclusions, etc., afin d'am\u00e9liorer l'efficacit\u00e9 de la filtration et d'atteindre l'objectif requis.<\/p>","protected":false},"excerpt":{"rendered":"

Non-metallic inclusions in the aluminum melt will cause surface streaks and pinholes during the aluminum foil rolling process. Surface streaks are also the allowable defects…<\/p>","protected":false},"author":1,"featured_media":5850,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,138],"tags":[],"class_list":["post-5848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","category-seo"],"yoast_head":"\nCeramic Foam Filter Filtering in Casting and Rolling Production<\/title>\n<meta name=\"description\" content=\"In casting and rolling production, most manufacturers use this\u00a0ceramic foam filter\u00a0filtering method, it can remove non-metallic inclusions.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-filtering\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta 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