{"id":3111,"date":"2020-07-25T14:03:09","date_gmt":"2020-07-25T14:03:09","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=3111"},"modified":"2020-10-19T08:11:04","modified_gmt":"2020-10-19T08:11:04","slug":"molten-metal-ceramic-foam-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/molten-metal-ceramic-foam-filter\/","title":{"rendered":"Filtre en mousse c\u00e9ramique pour m\u00e9tal en fusion"},"content":{"rendered":"

Fonctionnement du filtre en mousse c\u00e9ramique pour m\u00e9taux en fusion<\/strong>
\n\u2022 \u00c9limination des impuret\u00e9s et des scories : \u00e9puration du m\u00e9tal en fusion et d\u00e9gazage simultan\u00e9 (r\u00e9glage de la turbulence) :
\n- Apr\u00e8s filtration, la viscosit\u00e9 du m\u00e9tal en fusion diminue et la fluidit\u00e9 de l'alliage d'aluminium liquide augmente de 10% \u00e0 15%. Par cons\u00e9quent, le m\u00e9tal en fusion Filtre en mousse c\u00e9ramique<\/a> La filtration am\u00e9liore la capacit\u00e9 de remplissage du m\u00e9tal en fusion.
\n\u2013 Le flux de m\u00e9tal en fusion est turbulent avant la filtration, puis devient laminaire apr\u00e8s celle-ci (en raison du coude sinueux du parcours du filtre en c\u00e9ramique alv\u00e9ol\u00e9e), ce qui r\u00e9duit le volume de gaz et la formation de scories secondaires ;
\n- Au fur et \u00e0 mesure que la filtration progresse, le m\u00e9canisme de filtration passe du tamisage \u00e0 la formation d'un g\u00e2teau de filtration, puis \u00e0 la filtration en lit profond, et la puret\u00e9 du m\u00e9tal liquide filtr\u00e9 ne cesse d'augmenter (sans d\u00e9passer la capacit\u00e9 de filtration du filtre en mousse c\u00e9ramique)
\n\u2022 Le taux de rebut des pi\u00e8ces est r\u00e9duit
\n\u2022 Am\u00e9lioration des performances de d\u00e9coupe des pi\u00e8ces
\n\u2022 Les propri\u00e9t\u00e9s m\u00e9caniques du mat\u00e9riau sont nettement am\u00e9lior\u00e9es, notamment l'allongement.<\/p>\n

\"Filtre
\nChoix de la taille du filtre<\/strong>
\n\u2022 \u00c9tape : Calculer la section transversale minimale du canal de coul\u00e9e
\n\u2022 \u00c9tape 2 : Calculer la somme de la section transversale du rotor transversal et de la section transversale du rotor interne,
\n\u2022 Troisi\u00e8me \u00e9tape : d\u00e9terminer l'emplacement et le nombre de filtres ;
\n\u2022 \u00c9tape 4 : En fonction de la vitesse de filtration du filtre par unit\u00e9 de surface, de la capacit\u00e9 de filtration du filtre par unit\u00e9 de surface, de la vitesse de coul\u00e9e r\u00e9elle, du poids du m\u00e9tal en fusion traversant le filtre et de la puret\u00e9 du m\u00e9tal en fusion
\nLa taille du filtre (si le m\u00e9tal liquide est trop pur, une filtration en plusieurs \u00e9tapes est n\u00e9cessaire).
\n\u00c0 savoir : la vitesse de filtration du filtre > la vitesse de coul\u00e9e du m\u00e9tal en fusion ; la capacit\u00e9 de filtration du filtre > la quantit\u00e9 d'inclusions dans le m\u00e9tal en fusion<\/p>","protected":false},"excerpt":{"rendered":"

Function of Molten Metal Ceramic Foam Filter \u2022 Removal of impurities and slag: purification of molten metal and simultaneous degassing (adjustment of turbulence): -After filtering,…<\/p>","protected":false},"author":1,"featured_media":3112,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1739],"class_list":["post-3111","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo","tag-molten-metal-ceramic-foam-filter"],"yoast_head":"\nMolten Metal Ceramic Foam Filter-sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Function of Molten Metal Ceramic Foam Filter: Removal of impurities and slag: purification of molten metal and simultaneous degassing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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