{"id":8280,"date":"2021-03-31T06:01:50","date_gmt":"2021-03-31T06:01:50","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8280"},"modified":"2021-03-31T06:01:50","modified_gmt":"2021-03-31T06:01:50","slug":"aluminum-casting-filtration","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-casting-filtration\/","title":{"rendered":"Filtration dans la fonderie d'aluminium"},"content":{"rendered":"<p>La filtration de l'aluminium fondu \u00e0 l'aide d'un filtre en mousse c\u00e9ramique d'alumine permet d'\u00e9liminer et d'absorber efficacement diverses impuret\u00e9s pr\u00e9sentes dans l'aluminium fondu, d'am\u00e9liorer la qualit\u00e9 de surface, les performances du produit et l'efficacit\u00e9 de la microstructure.<\/p>\n<p>La filtration de la coul\u00e9e d'aluminium fait appel \u00e0 un filtre sp\u00e9cial en mousse c\u00e9ramique d'alumine afin d'\u00e9liminer les inclusions g\u00e9n\u00e9r\u00e9es entre le syst\u00e8me d'affinage et la table de moulage. La capacit\u00e9 de ce filtre en mousse c\u00e9ramique \u00e0 retenir ces inclusions est essentielle pour garantir la propret\u00e9 du lingot pendant le processus de solidification du m\u00e9tal. Ainsi, la qualit\u00e9 et la productivit\u00e9 des op\u00e9rations en aval, telles que le forgeage, l'extrusion et le laminage, sont garanties.<\/p>\n<p>Le filtre en mousse \u00e0 joint d'\u00e9tanch\u00e9it\u00e9 repose sur un support dot\u00e9 d'une structure r\u00e9ticulaire solide et de cellules de mousse organique. Les \u00e9tapes de fabrication sont les suivantes. Le support est plong\u00e9 dans une suspension thixotrope d\u2019alumine, puis un proc\u00e9d\u00e9 d\u2019extrusion automatique \u00e0 centrage carr\u00e9 est utilis\u00e9 pour permettre \u00e0 la suspension de se d\u00e9poser uniform\u00e9ment sur le squelette en mousse du support. Apr\u00e8s s\u00e9chage et solidification, le support est mis en forme par cuisson et devient ainsi le produit final. Le filtre est install\u00e9 dans le caisson de filtration afin de filtrer les impuret\u00e9s pr\u00e9sentes dans l\u2019alliage d\u2019aluminium fondu, ce qui permet de r\u00e9pondre aux exigences de production li\u00e9es au moulage de pr\u00e9cision d\u2019alliages d\u2019aluminium \u00e0 haute valeur ajout\u00e9e et aux performances de pointe, tels que les disques durs d\u2019ordinateurs, les substrats PS imprim\u00e9s, les mat\u00e9riaux en bo\u00eetes m\u00e9talliques, les aubes de turbines des moteurs \u00e0 r\u00e9action, etc.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8281\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/03\/Aluminum-Casting-Filtration.jpg\" alt=\"Filtration dans la fonderie d&#039;aluminium\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Aluminum-Casting-Filtration.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Aluminum-Casting-Filtration-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Le filtre en mousse c\u00e9ramique est entour\u00e9 d'un joint d'\u00e9tanch\u00e9it\u00e9, situ\u00e9 entre le filtre et la coupelle de filtration, afin d'emp\u00eacher l'aluminium en fusion de s'\u00e9chapper par l'interface. Le filtre d'AdTech utilise trois types de joints d'\u00e9tanch\u00e9it\u00e9 diff\u00e9rents : en papier fibreux, en coton fibreux et en coton expans\u00e9.<\/p>\n<p><a href=\"http:\/\/www.alalloycasting.com\/fr\/ceramic-foam-filters-for-aluminium\/\">Filtres en mousse c\u00e9ramique<\/a> Ils sont principalement utilis\u00e9s pour filtrer l'aluminium et ses alliages dans les fonderies. Le filtre pr\u00e9sente une excellente r\u00e9sistance \u00e0 l'\u00e9rosion et \u00e0 la corrosion caus\u00e9es par l'aluminium en fusion ; il permet d'\u00e9liminer efficacement les inclusions, de r\u00e9duire les gaz r\u00e9siduels et d'assurer un \u00e9coulement laminaire, ce qui rend le m\u00e9tal filtr\u00e9 nettement plus pur. Des m\u00e9taux plus purs permettent de produire des pi\u00e8ces moul\u00e9es de meilleure qualit\u00e9, de r\u00e9duire les rebuts et les d\u00e9fauts d\u2019inclusions, ce qui contribue \u00e0 augmenter les b\u00e9n\u00e9fices.<\/p>","protected":false},"excerpt":{"rendered":"<p>The aluminum casting filtration of alumina ceramic foam filter can effectively remove and absorb various impurities in molten aluminum, improve surface quality, product performance and&hellip;<\/p>","protected":false},"author":1,"featured_media":8281,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8280","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>Aluminum Casting Filtration with Ceramic Foam 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