{"id":10636,"date":"2021-10-15T03:41:12","date_gmt":"2021-10-15T03:41:12","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10636"},"modified":"2021-10-15T03:41:12","modified_gmt":"2021-10-15T03:41:12","slug":"use-of-ceramic-foam-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/use-of-ceramic-foam-filters\/","title":{"rendered":"Uso de filtros de espuma cer\u00e1mica"},"content":{"rendered":"<p>El uso de filtros de espuma cer\u00e1mica para eliminar las inclusiones en la industria de la fundici\u00f3n es bien conocido.<\/p>\n<p>El filtro de espuma cer\u00e1mica funciona mediante un proceso de filtraci\u00f3n en lecho profundo, en el que las impurezas de tama\u00f1o inferior al di\u00e1metro de los poros quedan retenidas en toda la secci\u00f3n transversal del filtro. Se considera que la retenci\u00f3n de impurezas en la filtraci\u00f3n en lecho profundo es el resultado de dos procesos consecutivos: el transporte de las impurezas hasta los puntos de retenci\u00f3n del medio filtrante y la adsorci\u00f3n de las part\u00edculas en dichos puntos.<\/p>\n<p><strong> Proceso de fabricaci\u00f3n de filtros de espuma cer\u00e1mica<\/strong><\/p>\n<p>El filtro de espuma cer\u00e1mica se fabrica infiltrando una espuma de poliuretano reticulada con una pasta cer\u00e1mica, eliminando el exceso de pasta mediante el exprimido de una esponja impregnada con dicha pasta, secando a continuaci\u00f3n el recubrimiento cer\u00e1mico, cociendo la esponja y sinterizando el cuerpo.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10638\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/10\/Ceramic-Foam-Filter-Purchasing-1.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Ceramic-Foam-Filter-Purchasing-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Ceramic-Foam-Filter-Purchasing-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Se a\u00f1aden polvo de al\u00famina y diferentes proporciones de bentonita y agua a la mezcla de polvos para preparar la pasta cer\u00e1mica. El contenido cer\u00e1mico de la pasta es del 45 % en peso, lo que constituye la proporci\u00f3n ideal para que la pasta penetre en la cer\u00e1mica. Cuando la esponja impregnada de cer\u00e1mica se seca, la bentonita une las part\u00edculas de al\u00famina en la superficie de la esponja. Es m\u00e1s, esta uni\u00f3n sigue existiendo durante la combusti\u00f3n de la esponja de poliuretano. No se observ\u00f3 ning\u00fan da\u00f1o en la cer\u00e1mica tras la combusti\u00f3n de la esponja. Por lo tanto, la morfolog\u00eda de la esponja se reproduce con precisi\u00f3n en la espuma cer\u00e1mica en bruto quemada por el poliuretano a 500 \u00b0C, obteni\u00e9ndose as\u00ed una espuma cer\u00e1mica d\u00e9bil de Al\u2082O\u2083. Con el fin de reforzar la espuma y transformarla en un filtro moldeado, la espuma en bruto se sinteriza a 1250 \u00b0C durante 60 minutos. Finalmente, se obtiene un filtro de aluminio fundido altamente poroso. Sorprendentemente, no se observ\u00f3 contracci\u00f3n alguna y se obtuvieron una porosidad y una estructura reticular uniformes. Los poros est\u00e1n conectados a los conductos necesarios para filtrar las inclusiones.<\/p>\n<p>Las pruebas de fundici\u00f3n demuestran que los filtros de espuma cer\u00e1mica pueden utilizarse con \u00e9xito para <a href=\"http:\/\/www.alalloycasting.com\/es\/aluminum-melt-filtration\/\">filtraci\u00f3n del aluminio fundido<\/a>. El filtro cer\u00e1mico resultante tambi\u00e9n puede utilizarse para controlar el caudal en el canal de flujo, de modo que no se produzcan turbulencias ni se formen pliegues en la pel\u00edcula de \u00f3xido cuando fluye el metal fundido. Estos filtros moldeados son especialmente adecuados para filtrar fundiciones de aluminio. Por lo tanto, el filtro de espuma cer\u00e1mica de al\u00famina resultante puede utilizarse en la industria de la fundici\u00f3n de aluminio como filtro de fundici\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>The use of ceramic foam filters to remove inclusions in the foundry industry is well known. The ceramic foam filter works in a deep bed&hellip;<\/p>","protected":false},"author":1,"featured_media":10637,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Use of Ceramic Foam Filters, Ceramic Foam Filter Manufacturer<\/title>\n<meta name=\"description\" content=\"The use of ceramic foam filters to remove inclusions in the foundry industry is well known. The filter works in a deep bed filtration mode.\" \/>\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\/es\/use-of-ceramic-foam-filters\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Use of Ceramic Foam Filters, Ceramic Foam Filter Manufacturer\" \/>\n<meta property=\"og:description\" content=\"The use of ceramic foam filters to remove inclusions in the foundry industry is well known. 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