{"id":10234,"date":"2021-09-09T06:20:15","date_gmt":"2021-09-09T06:20:15","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10234"},"modified":"2021-09-09T06:20:15","modified_gmt":"2021-09-09T06:20:15","slug":"aluminum-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-filters\/","title":{"rendered":"Filtres en aluminium"},"content":{"rendered":"

\u00c0 l'heure actuelle, la plupart des fonderies d'aluminium utilisent des syst\u00e8mes de filtration \u00e0 plaques, qui reposent principalement sur des filtres en mousse c\u00e9ramique.<\/p>\n

Il convient de pr\u00eater attention aux points suivants lors de la conception et de l'utilisation de filtres en mousse c\u00e9ramique destin\u00e9s \u00e0 l'aluminium fondu :<\/p>\n

(1) En fonction des exigences du produit, choisissez un mat\u00e9riau filtrant pr\u00e9sentant une taille de pores appropri\u00e9e. En r\u00e8gle g\u00e9n\u00e9rale, on utilise des filtres en mousse c\u00e9ramique de 50 PPI pour les produits extrud\u00e9s n\u00e9cessitant une grande puret\u00e9 interne, tandis que des filtres de 30 PPI peuvent \u00eatre utilis\u00e9s pour les autres produits courants. Une am\u00e9lioration ad\u00e9quate de la pr\u00e9cision de filtration r\u00e9duira la tendance du lingot \u00e0 former des cristaux grossiers et des cristaux en plumes.<\/p>\n

(2) Afin d'am\u00e9liorer l'efficacit\u00e9 de filtration et la dur\u00e9e de vie du filtre, il convient d'augmenter autant que possible sa surface de filtration effective, c'est-\u00e0-dire d'utiliser un filtre de grande taille.<\/p>\n

(3) Lors de l'installation du plaque filtrante en mousse c\u00e9ramique<\/a> Dans le bo\u00eetier du filtre, il doit \u00eatre bien serr\u00e9 et sans joint pour \u00e9viter toute fuite d'aluminium fondu.<\/p>\n

\"\"<\/p>\n

(4) Avant utilisation, le filtre doit \u00eatre enti\u00e8rement pr\u00e9chauff\u00e9, et la temp\u00e9rature de pr\u00e9chauffage ne doit pas \u00eatre inf\u00e9rieure \u00e0 720 \u00b0C. Entre les phases de coul\u00e9e et de fusion, il convient \u00e9galement de veiller \u00e0 maintenir la chaleur.<\/p>\n

(5) Afin de r\u00e9pondre aux exigences de la filtration fine et d'am\u00e9liorer la dur\u00e9e de vie du filtre, il est pr\u00e9f\u00e9rable d'utiliser une toile de verre pour effectuer une filtration grossi\u00e8re de la masse fondue avant le filtre en c\u00e9ramique.<\/p>\n

6) Organiser la production de mani\u00e8re raisonnable et s'efforcer d'\u00e9viter les changements fr\u00e9quents d'alliages, qui nuisent \u00e0 l'efficacit\u00e9 des filtres.<\/p>\n

(7) Lors du filtrage, il est strictement interdit de saupoudrer de la poudre de flux dans le filtre et dans la goulotte du four statique. Pendant le processus de coul\u00e9e, la hauteur de pression statique de la masse fondue doit augmenter de mani\u00e8re r\u00e9guli\u00e8re afin d\u2019\u00e9viter les fluctuations du niveau de liquide ainsi que les vibrations et les chocs subis par le moule. Avant la fin de la coul\u00e9e, il convient d'\u00e9liminer les scories pr\u00e9sentes \u00e0 la surface m\u00e9tallique du filtre afin d'\u00e9viter tout colmatage de la plaque filtrante.<\/p>\n

(8) \u00c9viter toute pollution secondaire de la masse fondue filtr\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"

At present, most aluminum foundries use plate filter equipment, which mainly filters through ceramic foam filters. The following issues should be paid attention to when…<\/p>","protected":false},"author":1,"featured_media":10235,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12667,811],"class_list":["post-10234","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-filters-used-for-foundries","tag-ceramic-foam-filter-plate"],"yoast_head":"\nAluminum Filters Used for Foundries, Ceramic Foam Filter Plate<\/title>\n<meta name=\"description\" content=\"At present, most aluminum foundries use plate filter equipment, which mainly filters molten aluminum through ceramic foam filters.\" \/>\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-filters\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aluminum Filters Used for Foundries, Ceramic Foam Filter Plate\" \/>\n<meta property=\"og:description\" content=\"At present, most aluminum foundries use plate filter equipment, which mainly filters molten aluminum through ceramic foam filters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alalloycasting.com\/fr\/aluminum-filters\/\" \/>\n<meta property=\"og:site_name\" content=\"alalloycasting\" \/>\n<meta property=\"article:published_time\" content=\"2021-09-09T06:20:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/09\/Aluminum-Filters.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"AdTech\" \/>\n<meta name=\"twitter:card\" 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