Filtration du m\u00e9tal en fusion<\/a> L'utilisation d'un filtre en mousse c\u00e9ramique constitue une m\u00e9thode efficace pour \u00e9liminer les inclusions. Le filtre en mousse c\u00e9ramique est fabriqu\u00e9 \u00e0 partir de polystyr\u00e8ne expans\u00e9. Le polystyr\u00e8ne est expans\u00e9 \u00e0 la vapeur dans un moule sp\u00e9cialement con\u00e7u pour former un gabarit en polystyr\u00e8ne. Ensuite, diff\u00e9rentes suspensions c\u00e9ramiques sont coul\u00e9es dans les alv\u00e9oles du polystyr\u00e8ne, puis laiss\u00e9es \u00e0 s\u00e9cher \u00e0 l'air libre. Apr\u00e8s le moulage, le filtre subit un processus de frittage dans diverses conditions. Cette nouvelle m\u00e9thode permet de contr\u00f4ler la taille des canaux du filtre et de former des pi\u00e8ges pr\u00e9sentant la configuration souhait\u00e9e. Des essais ont \u00e9t\u00e9 r\u00e9alis\u00e9s sur les filtres produits. L'essai de choc thermique garantit que le filtre peut r\u00e9sister \u00e0 des temp\u00e9ratures de 1 450 \u00b0C. L\u2019essai d\u2019absorption d\u2019eau montre que les mat\u00e9riaux \u00e0 base de bauxite absorbent davantage d\u2019eau que les autres mat\u00e9riaux.<\/p>\n![\"\"](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters.jpg\")
<\/p>\n
Le filtre en mousse c\u00e9ramique fait partie int\u00e9grante du dispositif de purification de la fonte d'aluminium, ce qui permet de r\u00e9duire efficacement la teneur en inclusions. L'utilisation de filtres en mousse c\u00e9ramique dans la production de nombreux types d'alliages d'aluminium permet d'atteindre un niveau satisfaisant de qualit\u00e9 m\u00e9tallurgique. Le choix et l'utilisation appropri\u00e9s des filtres constituent une condition pr\u00e9alable essentielle pour obtenir le meilleur effet de filtration possible.<\/p>\n
Le filtre en mousse c\u00e9ramique destin\u00e9 \u00e0 la coul\u00e9e des m\u00e9taux permet de r\u00e9duire consid\u00e9rablement les d\u00e9fauts d'inclusion, d'affiner le grain cristallin, d'am\u00e9liorer les propri\u00e9t\u00e9s m\u00e9caniques des pi\u00e8ces moul\u00e9es, d'optimiser leur usinabilit\u00e9, d'am\u00e9liorer leur qualit\u00e9 interne et externe, de simplifier le syst\u00e8me de coul\u00e9e, d'augmenter le rendement du processus et de r\u00e9duire la sur\u00e9paisseur d'usinage. Les filtres en mousse c\u00e9ramique ont consid\u00e9rablement am\u00e9lior\u00e9 la qualit\u00e9 et la comp\u00e9titivit\u00e9 des pi\u00e8ces moul\u00e9es en aluminium, tout en augmentant les b\u00e9n\u00e9fices des fonderies.<\/p>","protected":false},"excerpt":{"rendered":"
The ceramic foam filter is an extremely effective tool for obtaining the purity of the molten metal during the casting process. The ideal filtration characteristics…<\/p>","protected":false},"author":1,"featured_media":10627,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10625","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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