c\u00e9ramiques alv\u00e9olaires<\/a>.<\/p>\nLe tube en c\u00e9ramique microporeuse \u00e0 base de corindon permet de filtrer les inclusions d'oxyde de plusieurs microns. Son avantage r\u00e9side dans son efficacit\u00e9 accrue pour l'\u00e9limination des scories, mais son inconv\u00e9nient est son faible rendement.<\/p>\n
Le filet en fibre de verre pr\u00e9sente une grande adaptabilit\u00e9, une utilisation simple et un faible co\u00fbt. Cependant, en raison de la petite surface de ses mailles, il peut facilement obstruer le syst\u00e8me d\u2019injection et la filtration est instable. Lors de son utilisation, le filet en fibre de verre doit \u00eatre remplac\u00e9 fr\u00e9quemment, et il est difficile d\u2019\u00e9liminer les inclusions de petite taille. La taille des mailles du treillis en fibre de verre est de 1,2 mm \u00d7 1,5 mm, le nombre de mailles par centim\u00e8tre carr\u00e9 est de 30 et le d\u00e9bit de filtration est d'environ 20 kg\/min.<\/p>\n
![\"Doublure](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/08\/Ceramic-Foam-Filter-Liner-2.jpg\")
<\/p>\n
Les filtres en mousse c\u00e9ramique pour l'aluminium fondu pr\u00e9sentent une porosit\u00e9 \u00e9lev\u00e9e, une grande surface d'adsorption et une mise en \u0153uvre ais\u00e9e. Le filtre en mousse c\u00e9ramique offre la meilleure efficacit\u00e9 de filtration pour les inclusions oxyd\u00e9es sup\u00e9rieures \u00e0 10 \u00b5m, mais il est difficile d'\u00e9liminer les inclusions oxyd\u00e9es de tr\u00e8s petite taille. Pour obtenir un bain d'aluminium fondu de haute qualit\u00e9, plus la taille des pores de la plaque filtrante est petite, mieux c'est. Dans la pratique, la m\u00e9thode de filtration par mousse c\u00e9ramique est souvent associ\u00e9e \u00e0 la m\u00e9thode de soufflage. La mousse c\u00e9ramique \u00e9tant fragile, susceptible de s'ab\u00eemer facilement, non r\u00e9utilisable et dot\u00e9e de pores relativement droits, son efficacit\u00e9 d'\u00e9limination des inclusions est faible.<\/p>\n
Des tests ont d\u00e9montr\u00e9 que l'utilisation d'un flux de purification \u00e0 haut rendement + Filtration CFF<\/a> Le processus de purification de l'aluminium fondu permet de r\u00e9duire la teneur en impuret\u00e9s et le taux de microperforations de l'aluminium pur de type 70% \u00e0 82% et de type 60% \u00e0 88%, respectivement. Apr\u00e8s un d\u00e9gazage en ligne, les performances de l\u2019aluminium peuvent \u00eatre encore am\u00e9lior\u00e9es. La cl\u00e9 de la filtration et de la purification par flux r\u00e9side dans la r\u00e9alisation simultan\u00e9e des trois \u00e9tapes de fusion, de d\u00e9gazage et d\u2019\u00e9limination des impuret\u00e9s de l\u2019aluminium au cours du processus de fusion, ce qui permet de r\u00e9duire consid\u00e9rablement les d\u00e9fauts caus\u00e9s par les inclusions dans l\u2019aluminium.<\/p>","protected":false},"excerpt":{"rendered":"The ceramic foam molten Alu filters can effectively filter out the inclusions in the aluminum melt and the hydrogen adsorbed on the surface of the…<\/p>","protected":false},"author":1,"featured_media":9997,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[4682,12391],"class_list":["post-9996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","tag-ceramic-foam-filter-for-casting","tag-molten-alu-filters"],"yoast_head":"\n
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