{"id":9869,"date":"2021-08-12T01:42:59","date_gmt":"2021-08-12T01:42:59","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9869"},"modified":"2021-08-12T01:42:59","modified_gmt":"2021-08-12T01:42:59","slug":"ceramic-foam-filter-system","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/ceramic-foam-filter-system\/","title":{"rendered":"Sistema de filtrado con espuma cer\u00e1mica"},"content":{"rendered":"

El sistema de filtrado con espuma cer\u00e1mica elimina eficazmente la mayor parte de las inclusiones presentes en la masa fundida, lo que contribuye a reducir las variaciones en la resistencia a la tracci\u00f3n, el l\u00edmite el\u00e1stico y el alargamiento de la pieza, y evita la disminuci\u00f3n de las propiedades mec\u00e1nicas provocada por dichas inclusiones.<\/p>\n

El mecanismo de purificaci\u00f3n del sistema de filtrado de espuma cer\u00e1mica incluye, a grandes rasgos, los siguientes aspectos: interceptaci\u00f3n y retenci\u00f3n. En general, las inclusiones de gran volumen son f\u00e1cilmente interceptadas y bloqueadas por el filtro. Tras el paso de una determinada cantidad de metal fundido, se forma una capa de filtro en la superficie de la entrada del filtro, tras lo cual el caudal del metal fundido a trav\u00e9s del filtro se reduce significativamente. Por un lado, debido a la disminuci\u00f3n del di\u00e1metro interior de la entrada, aumenta la probabilidad de interceptar inclusiones de menor tama\u00f1o, as\u00ed como la eficiencia en la eliminaci\u00f3n de las mismas. Por otro lado, debido a la reducci\u00f3n de la secci\u00f3n transversal del canal de flujo del metal fundido, se bloquea la reposici\u00f3n del metal fundido, lo que favorece la aparici\u00f3n de defectos de fundici\u00f3n, como el retraso en la alimentaci\u00f3n y la contracci\u00f3n.<\/p>\n

\"Filtraci\u00f3n<\/p>\n

El metal fundido y las inclusiones suelen ser no humectables. Cuanto menor es el tama\u00f1o de las part\u00edculas de las inclusiones, peor es la humectabilidad. Por lo tanto, las inclusiones de part\u00edculas peque\u00f1as, de menos de 50 um, deben eliminarse mediante el mecanismo de adsorci\u00f3n. Cuando las inclusiones fluyen a trav\u00e9s de la pared del filtro, al entrar en contacto con la superficie del filtro \u2014con la que presentan una mejor humectabilidad mutua\u2014, se separan f\u00e1cilmente del metal fundido y son absorbidas por la pared del filtro. Si los poros del filtro de metal fundido<\/a> Si las part\u00edculas son peque\u00f1as, el canal del filtro es largo y el caudal es lo suficientemente lento, es m\u00e1s probable que las inclusiones del metal fundido entren en contacto con la pared interior del filtro, y la eficiencia con la que el filtro captura dichas inclusiones es mayor. Sin embargo, las inclusiones de part\u00edculas peque\u00f1as, inferiores a 10 \u00b5m, son dif\u00edciles de eliminar por adsorci\u00f3n. El metal fundido atraviesa el filtro, de modo que el flujo turbulento tiende a convertirse en un flujo laminar. Esto hace que el metal fundido que fluye a trav\u00e9s del filtro lo recorra de forma suave, evitando la oxidaci\u00f3n secundaria del metal fundido.<\/p>","protected":false},"excerpt":{"rendered":"

The ceramic foam filter system effectively removes most of the inclusions in the melt, so that the deviation of the tensile strength, yield strength, and…<\/p>","protected":false},"author":1,"featured_media":9870,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[21,89,1452],"class_list":["post-9869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","tag-ceramic-foam-filter","tag-molten-aluminum-filter","tag-molten-metal-filtration"],"yoast_head":"\nCeramic Foam Filter System for Molten Metal Filtration<\/title>\n<meta name=\"description\" content=\"The ceramic foam filter system effectively removes most of the inclusions in the melt, so that the deviation of the tensile strength.\" \/>\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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