{"id":10300,"date":"2021-09-16T08:11:38","date_gmt":"2021-09-16T08:11:38","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10300"},"modified":"2021-09-16T08:11:38","modified_gmt":"2021-09-16T08:11:38","slug":"secondary-aluminum-purification","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/secondary-aluminum-purification\/","title":{"rendered":"Purification de l'aluminium secondaire"},"content":{"rendered":"<p>La teneur en hydrog\u00e8ne et les inclusions non m\u00e9talliques pr\u00e9sentes dans les bains fondus d'aluminium et d'alliages d'aluminium ont un impact important sur la qualit\u00e9 de l'aluminium de recyclage. Les techniques de purification des bains fondus d'aluminium et d'alliages d'aluminium permettent d'am\u00e9liorer la qualit\u00e9 de l'aluminium de recyclage. C'est pourquoi les bains fondus d'aluminium et d'alliages d'aluminium doivent \u00eatre purifi\u00e9s.<\/p>\n<p>Par le pass\u00e9, la m\u00e9thode couramment utilis\u00e9e pour purifier les masses fondues d'aluminium et d'alliages d'aluminium consistait \u00e0 recourir \u00e0 un gaz inerte pour affiner la masse fondue par lots dans le four de maintien, puis \u00e0 la filtrer \u00e0 l'aide d'une toile de verre lors du transfert. D'une mani\u00e8re g\u00e9n\u00e9rale, l'efficacit\u00e9 du traitement de purification en four sur les masses fondues d'aluminium et d'alliages d'aluminium est assez limit\u00e9e.<\/p>\n<p>Face au renforcement constant des exigences de qualit\u00e9 pour l'aluminium secondaire, les m\u00e9thodes actuelles de traitement des masses fondues d'aluminium et d'alliages d'aluminium ne permettent plus de r\u00e9pondre \u00e0 ces exigences. En cons\u00e9quence, la m\u00e9thode MINT (syst\u00e8me de traitement en ligne de la coul\u00e9e), la flottation interne par buse de filage SNIF, la m\u00e9thode de d\u00e9gazage rotatif Alpur, la m\u00e9thode de d\u00e9gazage rotatif LARS, la m\u00e9thode de filtration en lit profond DBF, ainsi que les technologies de purification en ligne des coul\u00e9es d\u2019aluminium et d\u2019alliages d\u2019aluminium \u00e0 base de c\u00e9ramique, telles que la filtration par tube c\u00e9ramique et <a href=\"http:\/\/www.alalloycasting.com\/fr\/cff-filtration-purification\/\">Filtration par mousse c\u00e9ramique CFF<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10236\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/09\/Ceramic-Foam-Filter-System.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/09\/Ceramic-Foam-Filter-System.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/09\/Ceramic-Foam-Filter-System-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La mise en \u0153uvre r\u00e9ussie de la technologie de purification en ligne dans l'industrie de l'aluminium secondaire offre une garantie fiable pour r\u00e9duire la teneur en hydrog\u00e8ne des masses fondues d'aluminium et d'alliages d'aluminium, \u00e9liminer les inclusions non m\u00e9talliques et am\u00e9liorer la puret\u00e9 de ces masses fondues ainsi que la qualit\u00e9 de l'aluminium secondaire.<\/p>\n<p>La filtration apr\u00e8s le traitement d'\u00e9limination de l'hydrog\u00e8ne constitue le moyen le plus efficace et le plus fiable pour \u00e9liminer les inclusions non m\u00e9talliques pr\u00e9sentes dans la masse d'aluminium en fusion. Il existe de nombreuses m\u00e9thodes de filtration, mais les plus efficaces sont le tube filtrant en corindon et la plaque filtrante en c\u00e9ramique alv\u00e9ol\u00e9e. Le tube filtrant en corindon offre un rendement de filtration \u00e9lev\u00e9, mais il est plus co\u00fbteux et moins pratique \u00e0 utiliser. La plaque filtrante en c\u00e9ramique alv\u00e9ol\u00e9e est pratique \u00e0 utiliser, offre un bon rendement de filtration et son prix est abordable. Elle est largement utilis\u00e9e dans le monde entier.<\/p>\n<p>\u00c0 l'heure actuelle, les bains d'alliage d'aluminium sont filtr\u00e9s \u00e0 l'aide de plaques filtrantes en c\u00e9ramique alv\u00e9ol\u00e9e. Actuellement, on utilise g\u00e9n\u00e9ralement la technologie des plaques filtrantes en c\u00e9ramique alv\u00e9ol\u00e9e de type caisson. Il s'agit d'un caisson de filtration \u00e9quip\u00e9 d'un syst\u00e8me de couvercle de pr\u00e9chauffage au gaz. Lorsque l'aluminium en fusion traverse la plaque filtrante, les inclusions pr\u00e9sentes dans la masse fondue sont bloqu\u00e9es m\u00e9caniquement par le filtre, ce qui permet d'\u00e9liminer les impuret\u00e9s. Cette m\u00e9thode offre un bon rendement de filtration.<\/p>","protected":false},"excerpt":{"rendered":"<p>The hydrogen content and non-metallic inclusions in aluminum and aluminum alloy melts have an important impact on the quality of secondary aluminum. Aluminum and aluminum&hellip;<\/p>","protected":false},"author":1,"featured_media":10302,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Secondary Aluminum Purification, Online Purification Technology<\/title>\n<meta name=\"description\" content=\"The successful application of online purification technology in the secondary aluminum industry provides a reliable guarantee.\" \/>\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\/secondary-aluminum-purification\/\" \/>\n<meta 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