{"id":10690,"date":"2021-10-20T07:34:32","date_gmt":"2021-10-20T07:34:32","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10690"},"modified":"2021-10-20T07:34:32","modified_gmt":"2021-10-20T07:34:32","slug":"liquid-aluminum-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/liquid-aluminum-filters\/","title":{"rendered":"Filtres \u00e0 aluminium liquide"},"content":{"rendered":"

Les particules solides non m\u00e9talliques en suspension dans le m\u00e9tal en fusion peuvent entra\u00eener de graves probl\u00e8mes lors du moulage et de la fabrication de l'aluminium. Les filtres en mousse c\u00e9ramique constituent des filtres \u00e0 aluminium liquide particuli\u00e8rement efficaces et durables pour retenir les impuret\u00e9s oxyd\u00e9es et non oxyd\u00e9es.<\/p>\n

Les filtres en mousse c\u00e9ramique permettent d'\u00e9liminer les impuret\u00e9s pr\u00e9sentes dans l'aluminium liquide, ce qui peut am\u00e9liorer consid\u00e9rablement la qualit\u00e9 des lingots et r\u00e9duire le taux de rebut. Les mat\u00e9riaux filtrants en mousse c\u00e9ramique sont largement utilis\u00e9s dans l'industrie m\u00e9tallurgique.<\/p>\n

L'application de plaques filtrantes en mousse c\u00e9ramique<\/a> est d\u00e9sormais couramment utilis\u00e9 dans l'industrie de la transformation de l'aluminium. Il est install\u00e9 dans le caisson de filtration situ\u00e9 entre le four de fusion de l'alliage d'aluminium et l'\u00e9quipement de coul\u00e9e. Lorsque l'aluminium en fusion traverse la plaque filtrante, les particules d'impuret\u00e9s les plus grosses sont retenues, ce qui permet de purifier l'aluminium en fusion. Le choix de la plaque filtrante d\u00e9pend du d\u00e9bit par unit\u00e9 de temps et de la quantit\u00e9 totale d\u2019aluminium fondu. Le choix de la taille de la plaque filtrante en mousse c\u00e9ramique d\u00e9pend des exigences de puret\u00e9 de l\u2019aluminium fondu final. Plus les exigences de puret\u00e9 de l\u2019aluminium fondu sont \u00e9lev\u00e9es, plus la taille des pores choisie est petite.<\/p>\n

\"Filtres<\/p>\n

La filtration du m\u00e9tal en fusion \u00e0 l'aide d'un filtre en c\u00e9ramique alv\u00e9ol\u00e9e constitue la derni\u00e8re \u00e9tape du processus de purification de l'aluminium en fusion.<\/p>\n

Le m\u00e9canisme de filtration par mousse c\u00e9ramique est g\u00e9n\u00e9ralement d\u00e9crit comme un processus de tamisage, de s\u00e9dimentation et de filtration en lit profond.<\/p>\n

    \n
  1. Dans le cas de la filtration m\u00e9canique, l'efficacit\u00e9 de filtration est proportionnelle \u00e0 la taille des mailles de la c\u00e9ramique alv\u00e9ol\u00e9e. Plus les mailles sont fines, plus l'interception des petites particules est efficace.<\/li>\n
  2. Effet de formation d'une couche de g\u00e2teau de filtration. Le d\u00e9p\u00f4t de particules dans la masse fondue am\u00e9liore la capacit\u00e9 du filtre \u00e0 retenir les particules d'impuret\u00e9s.<\/li>\n<\/ol>\n

    Dans les m\u00eames conditions, la nouvelle plaque filtrante en mousse c\u00e9ramique pr\u00e9sente un taux \u00e9lev\u00e9 d'\u00e9limination des impuret\u00e9s pr\u00e9sentes dans la masse d'aluminium en fusion, et la diff\u00e9rence de pression statique avant et apr\u00e8s filtration varie consid\u00e9rablement au fil du temps. Bien entendu, plus les pores de la mousse c\u00e9ramique sont petits, plus la pr\u00e9cision de filtration de la masse d'aluminium en fusion est \u00e9lev\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"

    The solid non-metallic particles suspended in the molten metal can cause serious difficulties in the aluminum casting and manufacturing process. Ceramic Foam Filters are particularly…<\/p>","protected":false},"author":1,"featured_media":10691,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nLiquid Aluminum Filters, Ceramic Foam Filter Molten Metal Filtration<\/title>\n<meta name=\"description\" content=\"Ceramic Foam Filters are particularly effective and long-lasting liquid aluminum filters for filtering oxide and non-oxide impurities.\" \/>\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\/liquid-aluminum-filters\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Liquid Aluminum Filters, Ceramic Foam Filter Molten Metal Filtration\" \/>\n<meta property=\"og:description\" content=\"Ceramic Foam Filters are particularly effective and long-lasting liquid aluminum filters for filtering oxide and non-oxide impurities.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alalloycasting.com\/fr\/liquid-aluminum-filters\/\" \/>\n<meta property=\"og:site_name\" content=\"alalloycasting\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-20T07:34:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Liquid-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\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"AdTech\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/liquid-aluminum-filters\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/liquid-aluminum-filters\\\/\"},\"author\":{\"name\":\"AdTech\",\"@id\":\"https:\\\/\\\/www.alalloycasting.com\\\/#\\\/schema\\\/person\\\/431d9c832111002d5e0bf6dc57a33c20\"},\"headline\":\"Liquid Aluminum 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