filtre en mousse c\u00e9ramique<\/a> Afin de filtrer et de purifier l'alliage A356, en observant l'\u00e9volution des propri\u00e9t\u00e9s de r\u00e9sistance \u00e0 la traction et de l'allongement de l'alliage avant et apr\u00e8s purification, on peut tirer les conclusions suivantes :<\/p>\n(1) La filtration et la purification \u00e0 l'aide de filtres en mousse c\u00e9ramique de 20 ppi permettent d'am\u00e9liorer, dans une certaine mesure, la r\u00e9sistance \u00e0 la traction et l'allongement de l'alliage A356.<\/p>\n
(2) Les filtres en mousse c\u00e9ramique de 20 ppi permettent d'\u00e9liminer efficacement les inclusions grossi\u00e8res pr\u00e9sentes dans l'alliage et de disperser ces inclusions dans la structure de l'alliage.<\/p>\n
(3) Le filtre en mousse c\u00e9ramique de 20 ppi pr\u00e9sente des pores plus larges, ce qui augmente \u00e9galement la surface de contact entre la masse fondue et l'air lors de la purification de celle-ci, et intensifie ainsi l'oxydation. Lors de l'\u00e9coulement de la masse fondue, des inclusions \u00e9trang\u00e8res peuvent \u00eatre introduites par le syst\u00e8me de filtration ; c'est pourquoi, une fois l'alliage d'aluminium filtr\u00e9 et purifi\u00e9, les performances de certains \u00e9chantillons s'en trouvent r\u00e9duites.<\/p>\n
(4) Dans la plage comprise entre 720 et 730 \u2103, les propri\u00e9t\u00e9s m\u00e9caniques de l'alliage ne sont pas sensibles \u00e0 la temp\u00e9rature de coul\u00e9e. Dans la plage comprise entre 700 et 710 \u2103, la baisse de temp\u00e9rature est suffisante pour entra\u00eener une diminution sensible des performances.<\/p>\n
Le filtre en mousse c\u00e9ramique de 20 ppi \u00e9limine la plupart des inclusions pr\u00e9sentes dans la masse fondue, ce qui permet de stabiliser davantage le niveau global de r\u00e9sistance \u00e0 la traction et d'\u00e9viter la pr\u00e9sence d'inclusions grossi\u00e8res isol\u00e9es qui r\u00e9duisent consid\u00e9rablement cette r\u00e9sistance. Cependant, la plupart des inclusions plus petites ne peuvent pas \u00eatre \u00e9limin\u00e9es, ce qui emp\u00eache d'am\u00e9liorer le niveau global de r\u00e9sistance \u00e0 la traction.<\/p>","protected":false},"excerpt":{"rendered":"
The size ranges of typical commercial CFFs are 10 to 80 ppi. 20PPI -40PPI Ceramic Foam Filters are the most commonly used, for industrial cast…<\/p>","protected":false},"author":1,"featured_media":9291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[433,105,1440,1438,21,427,1439,426,219,425,165],"class_list":["post-9290","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-alumina-ceramic-foam-filter","tag-ceramic-filter-for-foundry","tag-ceramic-filter-malaysia","tag-ceramic-filter-suppliers","tag-ceramic-foam-filter","tag-ceramic-foam-filter-manufacturers","tag-ceramic-foam-filter-manufacturers-in-india","tag-ceramic-foam-filter-manufacturing-process","tag-ceramic-foam-filter-suppliers","tag-ceramic-foam-filters-for-casting","tag-foam-filter-manufacturers"],"yoast_head":"\n
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