{"id":8949,"date":"2021-05-27T07:34:46","date_gmt":"2021-05-27T07:34:46","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8949"},"modified":"2021-07-02T03:09:56","modified_gmt":"2021-07-02T03:09:56","slug":"filters-for-metal-casting","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/filters-for-metal-casting\/","title":{"rendered":"Filtros para la fundici\u00f3n de metales"},"content":{"rendered":"<p>Los filtros de espuma cer\u00e1mica para la fundici\u00f3n de metales son, en la actualidad, la forma m\u00e1s eficaz de eliminar las inclusiones del aluminio fundido. En los \u00faltimos a\u00f1os, algunas nuevas tecnolog\u00edas para purificar el aluminio fundido en centros de investigaci\u00f3n nacionales y extranjeros, como el procesamiento din\u00e1mico al vac\u00edo, la purificaci\u00f3n por desgasificaci\u00f3n continua por ultrasonidos y los filtros de cer\u00e1mica de corind\u00f3n, han obtenido muy buenos resultados; sin embargo, estos m\u00e9todos de procesamiento son m\u00e1s complicados y costosos, por lo que resulta dif\u00edcil su implantaci\u00f3n generalizada en la industria. La malla met\u00e1lica utilizada por los clientes de gama baja solo puede eliminar las inclusiones de gran tama\u00f1o del aluminio fundido, pero no las que se encuentran por debajo del nivel de la micra; adem\u00e1s, el filtro met\u00e1lico tambi\u00e9n contamina la aleaci\u00f3n de aluminio. El uso de placas filtrantes de espuma cer\u00e1mica permite filtrar las inclusiones peque\u00f1as y mejorar significativamente las propiedades mec\u00e1nicas y la calidad est\u00e9tica del producto.<\/p>\n<p>Los filtros de espuma cer\u00e1mica para la fundici\u00f3n de metales se instalan en el <a href=\"http:\/\/www.alalloycasting.com\/es\/cff-filter-box\/\">Caja de filtro CFF<\/a> entre la boca del horno y la placa de derivaci\u00f3n. Cuanto m\u00e1s cerca est\u00e9 la caja del filtro de la <a href=\"http:\/\/www.alalloycasting.com\/es\/distributing-launder\/\">distribuci\u00f3n de la ropa,<\/a> cuanto mejor. El motivo es que esto puede acortar la distancia de flujo del aluminio fundido tras la filtraci\u00f3n y reducir o evitar la reaparici\u00f3n de la oxidaci\u00f3n. El aluminio fundido fluye desde la boca del horno a trav\u00e9s de la caja de filtrado y, a continuaci\u00f3n, pasa a la placa divisora a trav\u00e9s del canal de vertido. Cuando se pone en marcha el dispositivo de filtrado, la diferencia de altura antes y despu\u00e9s de la filtraci\u00f3n del metal fundido es de unos 30 mm. A medida que se prolonga el tiempo de filtraci\u00f3n, aumentan las inclusiones en la superficie de la placa filtrante y en la pared del orificio, disminuye el caudal de filtrado y se acent\u00faa la diferencia de altura entre la parte delantera y la trasera. Una vez finalizada la colada, la diferencia de nivel aumenta hasta alcanzar los 50-100 rm.<\/p>\n<p>La elecci\u00f3n del filtro de espuma cer\u00e1mica depende, en primer lugar, de la precisi\u00f3n de la filtraci\u00f3n. Por lo general, un tama\u00f1o de poro de 10 poros\/cm puede satisfacer los requisitos de purificaci\u00f3n del aluminio l\u00edquido. Si el aluminio l\u00edquido est\u00e1 especialmente sucio, utilice l\u00e1minas de aluminio de poro grande (6 poros\/cm) para la prefiltraci\u00f3n, con el fin de evitar que las pastillas de filtraci\u00f3n de poro fino se obstruyan prematuramente. En segundo lugar, hay que determinar la superficie del filtro en funci\u00f3n de la velocidad de colada y del caudal de metal por unidad de tiempo.<\/p>\n<p><strong>Caracter\u00edsticas de los filtros de espuma cer\u00e1mica para la fundici\u00f3n de metales<\/strong><\/p>\n<ul>\n<li>La malla es uniforme para garantizar la libre penetraci\u00f3n de la pasta cer\u00e1mica y un recubrimiento uniforme.<\/li>\n<li>Es hidrof\u00edlico y puede adsorber firmemente la suspensi\u00f3n.<\/li>\n<li>Tiene suficiente elasticidad y puede recuperar r\u00e1pidamente su forma original tras la extrusi\u00f3n.<\/li>\n<li>Es vol\u00e1til a temperatura media y por debajo de la temperatura de cocci\u00f3n de la cer\u00e1mica, y no contamina la cer\u00e1mica.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Ceramic Foam Filters for Metal Casting are currently the most effective way to remove inclusions in the aluminum melt. In recent years, some new technologies&hellip;<\/p>","protected":false},"author":1,"featured_media":8953,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8949","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>Filters for Metal Casting,Ceramic Foam Filter for Foundry<\/title>\n<meta name=\"description\" content=\"Ceramic Foam Filters for Metal Casting are the most effective way to remove inclusions in the aluminum melt, installed in filter box.\" \/>\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\/filters-for-metal-casting\/\" \/>\n<meta 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