{"id":12472,"date":"2022-01-24T06:13:14","date_gmt":"2022-01-24T06:13:14","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=12472"},"modified":"2022-01-24T06:13:14","modified_gmt":"2022-01-24T06:13:14","slug":"%d0%bb%d0%b8%d1%82%d0%be%d0%b9-%d0%ba%d0%b5%d1%80%d0%b0%d0%bc%d0%b8%d1%87%d0%b5%d1%81%d0%ba%d0%b8%d0%b9-%d1%84%d0%b8%d0%bb%d1%8c%d1%82%d1%80","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/%d0%bb%d0%b8%d1%82%d0%be%d0%b9-%d0%ba%d0%b5%d1%80%d0%b0%d0%bc%d0%b8%d1%87%d0%b5%d1%81%d0%ba%d0%b8%d0%b9-%d1%84%d0%b8%d0%bb%d1%8c%d1%82%d1%80\/","title":{"rendered":"Filtre en c\u00e9ramique moul\u00e9e"},"content":{"rendered":"

Le filtre en c\u00e9ramique moul\u00e9e pr\u00e9sente une r\u00e9sistance sp\u00e9cifique de sa structure poreuse en r\u00e9seau, capable de supporter la diff\u00e9rence de pression \u00e0 la surface du m\u00e9tal en fusion ainsi que l'impact du flux de m\u00e9tal. Gr\u00e2ce \u00e0 la structure pr\u00e9cise, \u00e0 la qualit\u00e9 homog\u00e8ne et \u00e0 la grande surface sp\u00e9cifique de ce mat\u00e9riau, l'efficacit\u00e9 de filtration est exceptionnelle.<\/p>\n

Fonction du filtre en c\u00e9ramique moul\u00e9e<\/strong>
\n1. Am\u00e9lioration du rendement de l'extrusion
\nLors de l'utilisation d'une plaque filtrante pour le nettoyage d'une \u00e9bauche extrud\u00e9e en alliage 6063, nous avons suivi de pr\u00e8s une t\u00eate d'extrusion en particulier et avons constat\u00e9 que la vitesse d'extrusion avait augment\u00e9 d'environ 20%, tandis que le rendement avait progress\u00e9 de pr\u00e8s de 15%.
\n2. Prolonger la dur\u00e9e de vie du moule et r\u00e9duire le nombre de r\u00e9parations.
\n3. R\u00e9duisez la force de compression
\nLors de l'utilisation d'une plaque filtrante pour la purification du bain fondu de l'alliage 6063, il a \u00e9t\u00e9 constat\u00e9 que l'effort d'extrusion \u00e9tait inf\u00e9rieur de plus de 3% \u00e0 celui obtenu sans filtration.
\n4. Am\u00e9liorer consid\u00e9rablement la qualit\u00e9 de surface des profil\u00e9s en aluminium.
\nFiltre en c\u00e9ramique expans\u00e9e<\/a> La filtration de la masse fondue d'aluminium pr\u00e9sente de grands avantages en termes de r\u00e9duction des co\u00fbts de production et d'am\u00e9lioration de la qualit\u00e9 des produits.<\/p>\n

\"Filtre<\/p>\n

La qualit\u00e9 de l'aluminium fondu est tr\u00e8s importante, car elle influe consid\u00e9rablement sur les propri\u00e9t\u00e9s du produit lors des \u00e9tapes de transformation ult\u00e9rieures et sur la qualit\u00e9 du produit final. C'est pourquoi les pays du monde entier s'efforcent de purifier l'aluminium fondu.<\/p>\n

Les causes de la contamination par l'aluminium sont nombreuses. D'une part, au cours du processus de fusion, l'aluminium est expos\u00e9 \u00e0 l'atmosph\u00e8re du four \u00e0 l'\u00e9tat fondu ou semi-fondu, il s'oxyde facilement, r\u00e9agit facilement avec les vapeurs d'eau et absorbe l'hydrog\u00e8ne, et a tendance \u00e0 former diverses formes de scories non m\u00e9talliques (par exemple, dans le fondant). Des fragments de rev\u00eatement, des chlorures, des carbures, etc., ainsi que de grosses particules interm\u00e9talliques, etc.<\/p>\n

D'autre part, certains d\u00e9chets entrant dans la composition de la charge introduiront des impuret\u00e9s non aluminiques au cours du cycle.
\n\u00c9tant donn\u00e9 que ces d\u00e9chets proviennent des d\u00e9chets de production, des chutes et des d\u00e9chets g\u00e9n\u00e9r\u00e9s hors site issus de divers processus de l'usine, leurs origines sont vari\u00e9es, leur composition est complexe et leur qualit\u00e9 est \u00e9galement m\u00e9diocre.<\/p>\n

Ces impuret\u00e9s provoquent souvent l'apparition de bulles et d'inclusions dans la brique, ce qui affecte consid\u00e9rablement la puret\u00e9 de la masse fondue, ce qui, \u00e0 son tour, a une incidence sur l'usinabilit\u00e9, les propri\u00e9t\u00e9s m\u00e9caniques, la r\u00e9sistance \u00e0 la corrosion et l'aspect esth\u00e9tique du produit.<\/p>\n

\u00c0 l'heure actuelle, il existe plusieurs m\u00e9thodes pour \u00e9liminer ces substances nocives et purifier le bain d'aluminium fondu.<\/p>\n

En fonction des diff\u00e9rentes m\u00e9thodes utilis\u00e9es, celles-ci peuvent \u00eatre class\u00e9es en deux cat\u00e9gories : le traitement en four et le traitement hors four en continu (c'est-\u00e0-dire le traitement en ligne).<\/p>\n

En fonction de leur r\u00f4le, on peut les classer en deux cat\u00e9gories : principalement le d\u00e9gazage ou l'\u00e9limination des scories. Le filtre en c\u00e9ramique expans\u00e9e destin\u00e9 \u00e0 la coul\u00e9e filtre en continu le bain d'aluminium fondu, ce qui rel\u00e8ve du traitement en continu hors four. L'op\u00e9ration principale de purification consiste \u00e0 \u00e9liminer les scories.<\/p>","protected":false},"excerpt":{"rendered":"

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\u043c\u0435\u0442\u0430\u043b\u043b\u0430. \u0411\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0442\u043e\u0447\u043d\u043e\u0439 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435, \u043e\u0434\u043d\u043e\u0440\u043e\u0434\u043d\u043e\u043c\u0443…<\/p>","protected":false},"author":1,"featured_media":12473,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13223,12822],"class_list":["post-12472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-13223","tag-12822"],"yoast_head":"\n\u041b\u0438\u0442\u043e\u0439 \u043a\u0435\u0440\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0444\u0438\u043b\u044c\u0442\u0440, \u041f\u0435\u043d\u043e\u043a\u0435\u0440\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0444\u0438\u043b\u044c\u0442\u0440<\/title>\n<meta name=\"description\" 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