{"id":9649,"date":"2021-07-20T03:46:04","date_gmt":"2021-07-20T03:46:04","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9649"},"modified":"2021-07-20T03:47:56","modified_gmt":"2021-07-20T03:47:56","slug":"ceramic-filter-for-aluminum-melt","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/ceramic-filter-for-aluminum-melt\/","title":{"rendered":"Filtre en c\u00e9ramique pour bain d'aluminium fondu"},"content":{"rendered":"

La filtration de l'aluminium fondu \u00e0 l'aide d'un filtre c\u00e9ramique \u00e0 l'ext\u00e9rieur du four constitue une m\u00e9thode efficace pour am\u00e9liorer la puret\u00e9 de l'aluminium fondu. Le proc\u00e9d\u00e9 de filtration c\u00e9ramique permet d'\u00e9liminer efficacement diverses inclusions pr\u00e9sentes dans l'aluminium fondu, d'une finesse de l'ordre du microm\u00e8tre, de r\u00e9duire l'influence de ces inclusions sur la qualit\u00e9 des \u00e9bauches lamin\u00e9es \u00e0 chaud et d'offrir une garantie fondamentale pour l'obtention d'\u00e9bauches lamin\u00e9es \u00e0 chaud de haute qualit\u00e9.<\/p>\n

L'aluminium fondu, raffin\u00e9 \u00e0 l'aide d'azote de haute puret\u00e9 dans le four de maintien, est ensuite purifi\u00e9 hors du four \u00e0 l'aide d'un dispositif de d\u00e9gazage en ligne, puis filtr\u00e9 et purifi\u00e9 \u00e0 l'ext\u00e9rieur du four \u00e0 filtre en mousse c\u00e9ramique avant d'\u00eatre achemin\u00e9 vers l'installation de coul\u00e9e et de laminage afin de produire des billettes coul\u00e9es-lamin\u00e9es.<\/p>\n

Le filtration par mousse c\u00e9ramique<\/a> La m\u00e9thode utilis\u00e9e consiste en un caisson de filtration \u00e0 deux \u00e9tages, compos\u00e9 d\u2019une plaque filtrante en c\u00e9ramique alv\u00e9ol\u00e9e \u00e0 deux \u00e9tages, avec des mailles de 30 PPi et 40\/50 PPi. L\u2019aluminium en fusion doit \u00eatre filtr\u00e9 lors d\u2019un premier \u00e9tage avant d\u2019\u00eatre achemin\u00e9 vers le caisson avant. La plaque filtrante permet de retenir efficacement les inclusions m\u00e9talliques et non m\u00e9talliques ainsi que les bulles pr\u00e9sentes dans la masse d'aluminium en fusion, contribue \u00e0 la purification de celle-ci et offre une garantie fondamentale pour l'obtention d'\u00e9bauches lamin\u00e9es de haute qualit\u00e9.<\/p>\n

\u00c0 mesure que le volume d'aluminium liquide filtr\u00e9 augmente, les pores de la plaque filtrante en c\u00e9ramique se bouchent \u00e0 cause des inclusions, ce qui nuit \u00e0 la puret\u00e9 de l'aluminium fondu apr\u00e8s filtration ; il est donc n\u00e9cessaire de remplacer la plaque filtrante en temps voulu.<\/p>\n

\"Filtration<\/p>\n

Avantages du filtre en c\u00e9ramique pour la fonte d'aluminium<\/strong><\/p>\n

1) Il pr\u00e9sente une bonne r\u00e9sistance \u00e0 temp\u00e9rature ambiante et ne perd pas de scories pendant le transport et l'exploitation.
\n2) Il pr\u00e9sente une certaine r\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es, aux chocs thermiques et \u00e0 l'\u00e9rosion par les m\u00e9taux liquides.
\n3) Il pr\u00e9sente une bonne stabilit\u00e9 chimique et ne r\u00e9agit pas avec le m\u00e9tal en fusion.
\n4) Il pr\u00e9sente une taille de pores adapt\u00e9e, une bonne capacit\u00e9 \u00e0 laisser passer le m\u00e9tal en fusion et une bonne capacit\u00e9 \u00e0 filtrer les inclusions non m\u00e9talliques.
\n5) Il pr\u00e9sente une bonne qualit\u00e9 d'aspect. Aucune d\u00e9formation, faible \u00e9cart dimensionnel, ouverture uniforme et aucun ph\u00e9nom\u00e8ne d'obstruction.<\/p>","protected":false},"excerpt":{"rendered":"

Ceramic filter for aluminum melt filtration outside the furnace is an effective method to improve the cleanliness of molten aluminum. The ceramic filtration process can…<\/p>","protected":false},"author":1,"featured_media":9650,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-9649","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter"],"yoast_head":"\nCeramic Filter for Aluminum Melt -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Ceramic filter for aluminum melt filtration outside the furnace is an effective method to improve the cleanliness of molten aluminum.\" \/>\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-filter-for-aluminum-melt\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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