{"id":8729,"date":"2021-05-11T05:50:37","date_gmt":"2021-05-11T05:50:37","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8729"},"modified":"2021-05-11T05:50:37","modified_gmt":"2021-05-11T05:50:37","slug":"metal-foundry-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/metal-foundry-filter\/","title":{"rendered":"Filtre pour fonderie de m\u00e9taux"},"content":{"rendered":"

Le filtre en mousse c\u00e9ramique destin\u00e9 \u00e0 la fonderie de m\u00e9taux est con\u00e7u pour la coul\u00e9e en moule. Gr\u00e2ce au m\u00e9canisme de formation du \u201c g\u00e2teau de filtration \u201d du c\u00f4t\u00e9 de l'entr\u00e9e du filtre et \u00e0 la filtration en profondeur au sein de la matrice c\u00e9ramique, ces filtres en mousse c\u00e9ramique constituent un outil efficace pour garantir la puret\u00e9 m\u00e9tallurgique du m\u00e9tal en fusion pendant le processus de coul\u00e9e. Les filtres permettent \u00e9galement de r\u00e9gulariser le remplissage du moule, \u00e9vitant ainsi l'apparition de d\u00e9fauts ind\u00e9sirables dans la pi\u00e8ce moul\u00e9e.<\/p>\n

Les propri\u00e9t\u00e9s des filtres en mousse c\u00e9ramique destin\u00e9s \u00e0 la fonderie de m\u00e9taux sont d\u00e9termin\u00e9es par la structure 3D ouverte de la matrice c\u00e9ramique, form\u00e9e par un r\u00e9seau de cellules interconnect\u00e9es. Ils se distinguent par une tr\u00e8s bonne conductivit\u00e9 thermique, une grande stabilit\u00e9 et une r\u00e9sistance aux variations brusques de temp\u00e9rature.<\/p>\n

Le filtre en mousse c\u00e9ramique destin\u00e9 \u00e0 la fonderie de m\u00e9taux est principalement utilis\u00e9 dans le processus de purification de l'aluminium et des alliages d'aluminium. Compte tenu des exigences de plus en plus strictes en mati\u00e8re de qualit\u00e9 des produits en aluminium, l'utilisation des filtres en mousse c\u00e9ramique \u00e0 base d'alumine devrait se g\u00e9n\u00e9raliser.<\/p>\n

\"Laminage<\/p>\n

Filtration avec filtres en mousse c\u00e9ramique<\/a> peut am\u00e9liorer la qualit\u00e9 des pi\u00e8ces moul\u00e9es en aluminium haut de gamme.<\/p>\n

La pr\u00e9sence d\u2019inclusions non m\u00e9talliques nuit \u00e0 la production de pi\u00e8ces moul\u00e9es de qualit\u00e9 sup\u00e9rieure. Les propri\u00e9t\u00e9s m\u00e9caniques \u00e9lev\u00e9es pouvant \u00eatre atteintes constituent un aspect essentiel qui se perd facilement en pr\u00e9sence d\u2019inclusions et de couches d\u2019oxyde. Les propri\u00e9t\u00e9s m\u00e9caniques des alliages d\u2019aluminium \u00e0 haute r\u00e9sistance sont tr\u00e8s sensibles aux entailles ou aux imperfections pr\u00e9sentes dans la pi\u00e8ce moul\u00e9e. La filtration r\u00e9duit efficacement les niveaux d\u2019inclusions et les effets d\u2019entaille qui en d\u00e9coulent. Les techniques conventionnelles visant \u00e0 \u00e9liminer les inclusions sont inefficaces, et l\u2019utilisation de tamis m\u00e9talliques ou en fibres ne suffit pas \u00e0 garantir que le m\u00e9tal soit v\u00e9ritablement exempt de substances non m\u00e9talliques nuisibles.<\/p>\n

Les pi\u00e8ces moul\u00e9es de qualit\u00e9 sup\u00e9rieure imposent g\u00e9n\u00e9ralement des contraintes plus strictes en mati\u00e8re d'acceptabilit\u00e9 des d\u00e9fauts de surface mis en \u00e9vidence par le contr\u00f4le par ressuage. Des recherches ont montr\u00e9 que le niveau de ces d\u00e9fauts est r\u00e9duit lorsque l'on utilise une filtration sur mousse c\u00e9ramique.<\/p>\n

L'utilisation de filtres en mousse c\u00e9ramique pr\u00e9sente un autre avantage : la r\u00e9duction des d\u00e9fauts non m\u00e9talliques d\u00e9tectables aux rayons X. Dans ces conditions, la pr\u00e9sence de d\u00e9fauts visibles aux rayons X est souvent \u00e0 l'origine du rejet de pi\u00e8ces moul\u00e9es co\u00fbteuses. L'avantage le plus significatif r\u00e9side dans la r\u00e9duction des d\u00e9fauts visibles dans les zones qualifi\u00e9es de \u201c critiques sur le plan structurel \u201d.\u201d<\/p>","protected":false},"excerpt":{"rendered":"

Ceramic foam filter for metal foundry is designed for mold-casting metal. Thanks to the mechanism of creation of the \u201cfilter cake\u201d on the inlet filter…<\/p>","protected":false},"author":1,"featured_media":8741,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nMetal Foundry Filter used for Aluminum Alloy Purification<\/title>\n<meta name=\"description\" content=\"Ceramic foam filter for metal foundry is mainly used in the production of the aluminum and aluminum alloy purification process.\" \/>\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\/metal-foundry-filter\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" 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