{"id":3064,"date":"2020-07-25T11:49:14","date_gmt":"2020-07-25T11:49:14","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=3064"},"modified":"2020-10-19T06:37:11","modified_gmt":"2020-10-19T06:37:11","slug":"casting-ceramic-foam-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/casting-ceramic-foam-filter\/","title":{"rendered":"Fabricaci\u00f3n de un filtro de espuma cer\u00e1mica"},"content":{"rendered":"<p>El filtro de espuma cer\u00e1mica moldeada es un tipo de material poroso que presenta una estructura reticular tridimensional y una elevada porosidad. Gracias a la estructura especial de la espuma cer\u00e1mica, ofrece ventajas como una baja densidad, una elevada porosidad, una alta resistencia espec\u00edfica, una buena resistencia al choque t\u00e9rmico y a las altas temperaturas, entre otras. Por ello, la espuma cer\u00e1mica se utiliza ampliamente en la separaci\u00f3n por filtraci\u00f3n de gases y l\u00edquidos, la purificaci\u00f3n, la cat\u00e1lisis qu\u00edmica, la absorci\u00f3n de impactos, los materiales de alto aislamiento t\u00e9rmico, los materiales para bioimplantes y los sensores.<\/p>\n<p>El filtrado mediante espuma cer\u00e1mica es una de las t\u00e9cnicas m\u00e1s utilizadas en la industria. Su funci\u00f3n consiste en hacer que el metal fundido, que se encuentra en estado turbulento, adquiera un estado estable, uniforme y limpio tras pasar por el filtro de espuma cer\u00e1mica, lo que reduce considerablemente los defectos de fundici\u00f3n y, por lo tanto, la tasa de defectos, adem\u00e1s de suponer un ahorro en los costes de producci\u00f3n.<\/p>\n<h2>Tecnolog\u00eda de fabricaci\u00f3n de filtros de espuma cer\u00e1mica<\/h2>\n<p>El <a href=\"http:\/\/www.alalloycasting.com\/es\/foam-ceramic-filter-manufacturing-process\/\">Proceso de fabricaci\u00f3n de filtros cer\u00e1micos<\/a> utiliza espuma de poliuretano como soporte, la sumerge en una pasta compuesta por polvo cer\u00e1mico, aglutinante, agente de sinterizaci\u00f3n y agente de suspensi\u00f3n, exprime el exceso de pasta y, a continuaci\u00f3n, recubre uniformemente con la pasta cer\u00e1mica. El cuerpo principal se forma sobre el marco de soporte, se seca y se fabrica mediante sinterizaci\u00f3n a alta temperatura. Este proceso tambi\u00e9n se conoce como m\u00e9todo de impregnaci\u00f3n de espuma org\u00e1nica y, en la actualidad, es una tecnolog\u00eda de producci\u00f3n consolidada. En t\u00e9rminos generales, cuanto mayor es el valor del PPI (poros por pulgada), menor es el tama\u00f1o de los poros correspondientes y m\u00e1s peque\u00f1as son las inclusiones filtradas.<\/p>\n<h2>Uso del filtro de espuma para hornos<\/h2>\n<ol>\n<li>Seleccione el material filtrante adecuado en funci\u00f3n del punto de fusi\u00f3n de la aleaci\u00f3n para evitar que las altas temperaturas da\u00f1en la funci\u00f3n del filtro y este no logre el efecto de filtrado deseado.<\/li>\n<li>Elige la malla adecuada y el efecto de purificaci\u00f3n deber\u00eda cumplir los requisitos de fundici\u00f3n.<\/li>\n<li>Temperatura de colada en el l\u00edmite del proceso, con el fin de aumentar al m\u00e1ximo la fluidez del metal.<\/li>\n<li>La placa filtrante se coloca en posici\u00f3n horizontal dentro de la caja del filtro, y la altura de vertido no debe superar los 20 cm.<\/li>\n<li>El filtro debe manipularse con cuidado. Cuando no se utilice, gu\u00e1rdelo en un lugar seco y ventilado para evitar que la absorci\u00f3n de humedad afecte a su resistencia.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Casting Ceramic Foam Filter is a kind of porous material, which has the characteristics of three-dimensional network structure and high porosity. Due to the special&hellip;<\/p>","protected":false},"author":1,"featured_media":3065,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,138],"tags":[1724,1725],"class_list":["post-3064","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","category-seo","tag-casting-ceramic-foam-filter","tag-ceramic-foam-filter-production-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Casting Ceramic Foam Filter,Ceramic Foam Filter Production Technology<\/title>\n<meta name=\"description\" content=\"Casting ceramic foam filter is widely used in metal casting. 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