{"id":10704,"date":"2021-10-21T08:57:00","date_gmt":"2021-10-21T08:57:00","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10704"},"modified":"2021-10-21T08:57:00","modified_gmt":"2021-10-21T08:57:00","slug":"foam-ceramic-filter-plates","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/foam-ceramic-filter-plates\/","title":{"rendered":"Plaques filtrantes en c\u00e9ramique alv\u00e9ol\u00e9e"},"content":{"rendered":"<p>Les plaques filtrantes en c\u00e9ramique alv\u00e9ol\u00e9e sont couramment utilis\u00e9es pour la filtration de l'aluminium en fusion. Lorsque l\u2019aluminium fondu traverse les pores du filtre en c\u00e9ramique alv\u00e9ol\u00e9e, les impuret\u00e9s qu\u2019il contient se d\u00e9posent sur les parois des pores sous l\u2019effet de la pression du fluide, de l\u2019inertie, de l\u2019interception, des collisions, de l\u2019adsorption, etc., de sorte que l\u2019aluminium fondu pur parvienne jusqu\u2019\u00e0 la plaque de coul\u00e9e-laminage.<\/p>\n<p>L'efficacit\u00e9 de filtration du <a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filter-plate\/\">plaque filtrante en c\u00e9ramique alv\u00e9ol\u00e9e<\/a>\u00a0est directement li\u00e9 au diam\u00e8tre des micropores, mais le diam\u00e8tre des d\u00e9bris retenus est bien inf\u00e9rieur au diam\u00e8tre moyen des micropores. La plaque filtrante, dot\u00e9e de 12 trous par cm et d'une \u00e9paisseur de 50 mm, permet d'\u00e9liminer les d\u00e9bris de type 80% ainsi que tout autre d\u00e9bris d'une taille sup\u00e9rieure \u00e0 100 \u03bcm.<\/p>\n<p>Afin d'am\u00e9liorer l'efficacit\u00e9 de la filtration, vous pouvez \u00e9galement utiliser dans un premier temps un treillis en fibre de verre pour la filtration grossi\u00e8re, puis recourir \u00e0 des plaques filtrantes en c\u00e9ramique expans\u00e9e pour la filtration fine. Les plaques en c\u00e9ramique expans\u00e9e sont g\u00e9n\u00e9ralement remplac\u00e9es \u00e0 chaque coul\u00e9e afin de garantir le d\u00e9bit de l'aluminium fondu et d'emp\u00eacher les d\u00e9bris et les particules de scories d\u00e9pos\u00e9s dans les canaux de r\u00e9int\u00e9grer le bain d'aluminium fondu.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10628\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La m\u00e9thode de purification de l'aluminium fondu dans le four permet uniquement d'\u00e9liminer l'aluminium lui-m\u00eame et ses impuret\u00e9s, mais ne permet pas d'\u00e9liminer la pollution secondaire de l'aluminium lors du processus d'injection. Par ailleurs, la surface du four \u00e9tant vaste et la profondeur du bain de fusion peu importante, il est difficile de r\u00e9partir le fondant dans tous les recoins du four afin de purifier efficacement l\u2019ensemble de l\u2019aluminium fondu. C\u2019est pourquoi, dans le processus de fusion et de coul\u00e9e, on recourt g\u00e9n\u00e9ralement \u00e0 une m\u00e9thode de purification en ligne hors du four, de sorte que l\u2019aluminium liquide entre en contact par convection avec le flux gazeux dans une cuve sp\u00e9ciale apr\u00e8s son passage dans le four \u00e0 flux continu ou le four statique, puis s\u2019\u00e9coule vers le moule de coul\u00e9e semi-continue ou vers la buse d\u2019alimentation du laminoir de coul\u00e9e continue, ce qui garantit que tout l\u2019aluminium fondu est efficacement purifi\u00e9 et emp\u00eache la pollution secondaire.<\/p>","protected":false},"excerpt":{"rendered":"<p>Foam ceramic filter plates are commonly used for aluminum liquid filtration. When the molten aluminum passes through the pores in the ceramic foam filter, the&hellip;<\/p>","protected":false},"author":1,"featured_media":10705,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-10704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Foam Ceramic Filter Plates -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Foam ceramic filter plates are used for aluminum liquid filtration. 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