{"id":10244,"date":"2021-09-10T05:58:29","date_gmt":"2021-09-10T05:58:29","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10244"},"modified":"2021-09-10T05:58:29","modified_gmt":"2021-09-10T05:58:29","slug":"foundries-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/foundries-filters\/","title":{"rendered":"Filtros para fundiciones"},"content":{"rendered":"

El aluminio fundido pasa a trav\u00e9s de los filtros de la fundici\u00f3n, de modo que las part\u00edculas de impurezas presentes en el aluminio fundido quedan retenidas en la superficie del medio filtrante o capturadas en su interior, con el fin de purificar el aluminio fundido.<\/p>\n

Aunque la mayor parte de las inclusiones de escoria se eliminan del aluminio fundido durante el refinado, algunas part\u00edculas finas de escoria, especialmente las de tama\u00f1o inferior a unas pocas micras, son dif\u00edciles de eliminar mediante el refinado en horno y el refinado en l\u00ednea, por lo que permanecen en suspensi\u00f3n en el aluminio fundido. Es necesario aplicar un tratamiento de filtraci\u00f3n riguroso antes de la fundici\u00f3n y la laminaci\u00f3n.<\/p>\n

Existen muchos filtros de fundici\u00f3n para la filtraci\u00f3n del aluminio fundido, principalmente filtros de tubo de corind\u00f3n, filtros de lecho profundo, medio filtrante de espuma cer\u00e1mica<\/a> etc. En la actualidad, el filtro de cer\u00e1mica celular es el m\u00e1s utilizado. Presenta una estructura porosa homog\u00e9nea, una elevada resistencia superficial, una resistencia a temperaturas de hasta 1100 \u00b0C y una excelente resistencia a los productos qu\u00edmicos utilizados en las fundiciones.<\/p>\n

\"Filtro<\/p>\n

Las distintas f\u00e1bricas de aluminio tienen condiciones de fundici\u00f3n diferentes, por lo que los filtros que se utilizan tambi\u00e9n son distintos.<\/p>\n

En comparaci\u00f3n con la fundici\u00f3n y la laminaci\u00f3n, las condiciones de producci\u00f3n de la fundici\u00f3n son m\u00e1s complejas. El caudal es elevado y el filtro funciona de la misma manera que en la producci\u00f3n de fundici\u00f3n y laminaci\u00f3n. El caudal del filtro es m\u00e1s de 2,5 a 3,5 veces superior al de la fundici\u00f3n y laminaci\u00f3n, lo que reduce la eficacia de la filtraci\u00f3n. Por lo tanto, para garantizar la misma eficiencia de filtraci\u00f3n, es necesario aumentar la superficie de paso del filtro, de modo que el caudal por unidad de superficie del filtro sea el mismo.<\/p>\n

Los fundidos de duraluminio y de aleaciones de aluminio superduras son m\u00e1s propensos a contener diminutas part\u00edculas de escoria que el aluminio puro y las aleaciones blandas. Por este motivo, es necesario mejorar considerablemente la eficiencia de la filtraci\u00f3n para lograr la alta pureza del fundido y garantizar la calidad del producto final. Por lo tanto, lo m\u00e1s recomendable es utilizar un filtro tubular, que no solo aumenta la superficie del filtro en contacto con el metal fundido, sino que tambi\u00e9n reduce el caudal por unidad de superficie del metal fundido, garantiza la eficiencia de la filtraci\u00f3n y el caudal total, y satisface las necesidades de producci\u00f3n. Esto aumenta la altura de presi\u00f3n inicial del metal fundido filtrado, lo que complica la operaci\u00f3n y, al mismo tiempo, incrementa el coste de la filtraci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"

The aluminum melt passes through foundries filters, so that the impurity particles in the melt are intercepted by the surface of the filter medium or…<\/p>","protected":false},"author":1,"featured_media":10246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12668,12669],"class_list":["post-10244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-foundries-filters","tag-molten-aluminum-filtering-equipment"],"yoast_head":"\nFoundries Filters, Molten Aluminum Filtering Equipment<\/title>\n<meta name=\"description\" content=\"The aluminum melt passes through foundries filters, so that the impurity particles in the melt are intercepted by the surface of the filter.\" \/>\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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