{"id":8337,"date":"2021-04-07T05:34:44","date_gmt":"2021-04-07T05:34:44","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8337"},"modified":"2021-04-07T05:34:44","modified_gmt":"2021-04-07T05:34:44","slug":"aluminum-ceramic-foam-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-ceramic-foam-filter\/","title":{"rendered":"Filtro de espuma de aluminio y cer\u00e1mica"},"content":{"rendered":"<p>Para fabricar productos de aluminio con caracter\u00edsticas aceptables, como latas de bebidas y piezas del fuselaje de aviones, el aluminio debe estar pr\u00e1cticamente libre de inclusiones y defectos. Cuando el aluminio se funde al inicio del proceso de fundici\u00f3n, se llena de \u00f3xidos, boruros, sales y otras impurezas, que pueden acabar apareciendo como inclusiones perjudiciales en el producto final. Es conveniente eliminar estas inclusiones antes de que el aluminio se solidifique. Esto se consigue normalmente haciendo pasar el aluminio fundido a trav\u00e9s de un filtro de espuma cer\u00e1mica.<\/p>\n<p>La t\u00e9cnica que se utiliza habitualmente para fabricar filtros de espuma cer\u00e1mica se denomina \u201creplicaci\u00f3n en esponja\u201d. En este proceso, la espuma de poliuretano se recubre con una pasta cer\u00e1mica, se seca para formar un filtro en bruto y, a continuaci\u00f3n, se cuece. Durante el proceso de cocci\u00f3n, la espuma de poliuretano interna se evapora y los compuestos cer\u00e1micos restantes forman una red continua de pilares cer\u00e1micos, creando as\u00ed una estructura de espuma similar a un exoesqueleto capaz de reproducir activamente la espuma de poliuretano original.<\/p>\n<p>El <a href=\"http:\/\/www.alalloycasting.com\/es\/ceramic-foam-material\/\">material de espuma cer\u00e1mica<\/a> presenta una estructura de celdas abiertas con una distribuci\u00f3n de huecos interconectados, rodeados por una red de material cer\u00e1mico. Esta estructura se utiliza habitualmente para la filtraci\u00f3n de metal fundido y se conoce en el sector como \u00abespuma cer\u00e1mica\u00bb.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8215\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/03\/Alumina-Ceramic-Foam.jpg\" alt=\"Espuma cer\u00e1mica de al\u00famina\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Alumina-Ceramic-Foam.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Alumina-Ceramic-Foam-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El filtro de espuma cer\u00e1mica es capaz de resistir la corrosi\u00f3n qu\u00edmica de la aleaci\u00f3n de aluminio fundido en condiciones normales de uso.<\/p>\n<p>El filtro de espuma cer\u00e1mica de aluminio fundido es ligero y, preferiblemente, tiene una densidad de entre 0,25 y 0,40 g\/cc aproximadamente.<\/p>\n<p>La porosidad principal del filtro viene determinada por la estructura macrosc\u00f3pica de la espuma, ya que el filtro se forma como un exoesqueleto del precursor de poliuretano, creando as\u00ed una espuma replicada mediante el recubrimiento con una suspensi\u00f3n y, posteriormente, el secado y la cocci\u00f3n. El tama\u00f1o de poro primario de la espuma y del filtro final es, preferiblemente, de al menos 3 PPI hasta un m\u00e1ximo de 100 PPI, y m\u00e1s preferiblemente de al menos 20 PPI hasta un m\u00e1ximo de 70 PPI. En una operaci\u00f3n comercial est\u00e1ndar, un filtro de 58,4 \u00d7 58,4 \u00d7 5,1 cm (23 \u00d7 23 \u00d7 2 pulgadas) deber\u00eda ser capaz de procesar 100 toneladas de metal en una sola colada.<\/p>","protected":false},"excerpt":{"rendered":"<p>In order to manufacture aluminum products with acceptable characteristics, such as beverage cans and aircraft fuselage parts, aluminum must be substantially free of inclusions and&hellip;<\/p>","protected":false},"author":1,"featured_media":8338,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-8337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Ceramic Foam Filter 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