{"id":9325,"date":"2021-06-26T03:54:14","date_gmt":"2021-06-26T03:54:14","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9325"},"modified":"2021-06-25T04:02:06","modified_gmt":"2021-06-25T04:02:06","slug":"aluminum-foundry-cff","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-foundry-cff\/","title":{"rendered":"Fonderie d'aluminium CFF"},"content":{"rendered":"<p>Le filtre en mousse c\u00e9ramique (CFF) est largement utilis\u00e9 dans la production des grandes entreprises de transformation de l'aluminium. Lors de son utilisation, il est non seulement n\u00e9cessaire d'\u00e9liminer les inclusions pr\u00e9sentes dans la masse d'aluminium en fusion, mais aussi d'\u00e9viter le colmatage des filtres c\u00e9ramiques de fonderie et d'am\u00e9liorer la dur\u00e9e de vie du filtre en mousse c\u00e9ramique (CFF) destin\u00e9 \u00e0 la fonderie d'aluminium.<\/p>\n<p>Les filtres en mousse c\u00e9ramique sont largement utilis\u00e9s dans la fonderie d'aluminium en g\u00e9n\u00e9ral. Ces filtres pr\u00e9sentent une porosit\u00e9 \u00e9lev\u00e9e et une grande surface d'adsorption. Ils offrent une bonne efficacit\u00e9 de filtration pour les inclusions sup\u00e9rieures \u00e0 10 \u03bcm (par exemple, leur efficacit\u00e9 d'\u00e9limination des inclusions de 40 \u03bcm peut atteindre 90%). L'efficacit\u00e9 d'\u00e9limination des inclusions inf\u00e9rieures \u00e0 10 \u03bcm est faible (seulement environ 30%).<\/p>\n<p><a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-cff\/\">Filtre en mousse c\u00e9ramique CFF <\/a>est largement utilis\u00e9 pour filtrer les impuret\u00e9s de l'aluminium fondu dans les ateliers de coul\u00e9e. La filtration est une \u00e9tape indispensable pour optimiser la qualit\u00e9 du m\u00e9tal et celle des produits finis en aval. Les inclusions peuvent provenir de diverses sources au cours du processus de production, notamment des films d'oxyde de surface, des r\u00e9fractaires de four \u00e9rod\u00e9s et des impuret\u00e9s insolubles telles que les carbures. Les filtres en mousse c\u00e9ramique constituent une m\u00e9thode simple, fiable et \u00e9conomique pour \u00e9liminer les inclusions. La filtration \u00e0 l'aide du CFF pour fonderie d'aluminium vient compl\u00e9ter les traitements du m\u00e9tal effectu\u00e9s \u00e0 l'int\u00e9rieur du four, tels que la fluxage et le d\u00e9gazage ou la filtration en ligne.<\/p>\n<p>Le filtre \u00e0 particules en c\u00e9ramique agglom\u00e9r\u00e9e pr\u00e9sente une efficacit\u00e9 de filtration de 90% pour les particules de 10 \u00e0 25 \u03bcm ; toutefois, plus les particules sont petites, moins l'efficacit\u00e9 est bonne, et le filtre est inefficace pour les particules inf\u00e9rieures \u00e0 6 \u03bcm.<\/p>\n<p>Le filtre c\u00e9ramique rigide pr\u00e9sente une efficacit\u00e9 de filtration sup\u00e9rieure \u00e0 50% pour les particules de taille comprise entre 1 \u03bcm et 10 \u03bcm, et de 95% pour les particules de taille sup\u00e9rieure \u00e0 10 \u03bcm, mais son rendement est tr\u00e8s faible et le d\u00e9bit n'est g\u00e9n\u00e9ralement que de 0,10\u2076 \u00e0 0,10\u2077 cm\/s. L'efficacit\u00e9 de filtration d\u00e9pend des param\u00e8tres de la structure du filtre (tels que la porosit\u00e9, la taille moyenne des micropores, l'\u00e9paisseur, etc.), de l'\u00e9tat d'\u00e9coulement de la masse fondue, des inclusions, ainsi que des propri\u00e9t\u00e9s physiques et chimiques de la masse fondue.<\/p>\n<p>Les performances de filtration des filtres c\u00e9ramiques susmentionn\u00e9s diminuent toutes fortement lorsque le d\u00e9bit augmente. Par cons\u00e9quent, le contr\u00f4le du d\u00e9bit et de la surface utile des alv\u00e9oles du filtre constituent les \u00e9l\u00e9ments cl\u00e9s qui influent sur l'efficacit\u00e9.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminum Foundry CFF (Ceramic Foam Filter) is widely used in the production of large aluminum processing enterprises. During use, it is not only necessary to&hellip;<\/p>","protected":false},"author":1,"featured_media":9327,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9325","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>Aluminum Foundry CFF, Ceramic Foam Filter for Casting<\/title>\n<meta name=\"description\" content=\"Aluminum Foundry CFF (Ceramic Foam Filter) is widely used in the production of large aluminum processing enterprises and aluminum castings.\" \/>\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\/aluminum-foundry-cff\/\" \/>\n<meta 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