{"id":11817,"date":"2021-12-15T06:37:33","date_gmt":"2021-12-15T06:37:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11817"},"modified":"2021-12-15T06:37:33","modified_gmt":"2021-12-15T06:37:33","slug":"%cf%86%ce%af%ce%bb%cf%84%cf%81%ce%b1-%ce%b2%ce%b1%ce%b8%ce%b9%ce%ac%cf%82-%ce%ba%ce%bb%ce%af%ce%bd%ce%b7%cf%82","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/%cf%86%ce%af%ce%bb%cf%84%cf%81%ce%b1-%ce%b2%ce%b1%ce%b8%ce%b9%ce%ac%cf%82-%ce%ba%ce%bb%ce%af%ce%bd%ce%b7%cf%82\/","title":{"rendered":"filtros de lecho profundo"},"content":{"rendered":"<p>Los filtros de lecho profundo, tambi\u00e9n conocidos como filtros de acumulaci\u00f3n de part\u00edculas, est\u00e1n compuestos principalmente por capas de bolas de al\u00famina reforzadas que se apilan seg\u00fan una proporci\u00f3n espec\u00edfica de tama\u00f1o de part\u00edcula. El filtro de lecho profundo puede filtrar part\u00edculas de m\u00e1s de 10 \u00b5m, con un alto rendimiento de filtraci\u00f3n, gran capacidad de filtraci\u00f3n, larga vida \u00fatil y buena regeneraci\u00f3n. Sin embargo, presenta un tiempo de calentamiento prolongado y un elevado coste de sustituci\u00f3n, por lo que resulta adecuado para el filtrado de fundici\u00f3n con altos requisitos de rendimiento y gran capacidad de procesamiento.<\/p>\n<p>La composici\u00f3n qu\u00edmica de las inclusiones no met\u00e1licas que se forman en la masa fundida de aluminio es muy estable, lo que facilita la aparici\u00f3n de grietas en las piezas fundidas tras la solidificaci\u00f3n. La presencia de inclusiones no met\u00e1licas reducir\u00e1 la fluidez del metal y disminuir\u00e1 las propiedades mec\u00e1nicas de la pieza fundida. Debido a la elevada dureza de las inclusiones no met\u00e1licas, el rendimiento de corte de las piezas fundidas se ver\u00e1 reducido. Las inclusiones no met\u00e1licas tambi\u00e9n est\u00e1n relacionadas con la formaci\u00f3n de poros en las piezas fundidas. Las inclusiones no met\u00e1licas presentan una mala humectabilidad con el fundido de aluminio y su superficie microsc\u00f3picamente rugosa puede servir f\u00e1cilmente como n\u00facleos para poros o cavidades de contracci\u00f3n. El hidr\u00f3geno presente en el aluminio se deposita f\u00e1cilmente en las inclusiones no met\u00e1licas y forma poros tras el enfriamiento.<\/p>\n<p>La eliminaci\u00f3n de las impurezas no met\u00e1licas tambi\u00e9n puede lograrse mediante filtraci\u00f3n. La <a href=\"http:\/\/www.alalloycasting.com\/es\/%ce%ba%ce%b5%cf%81%ce%b1%ce%bc%ce%b9%ce%ba%cf%8c-%cf%86%ce%af%ce%bb%cf%84%cf%81%ce%bf-%ce%b1%cf%86%cf%81%ce%bf%cf%8d-%cf%87%cf%85%cf%84%ce%b7%cf%81%ce%af%ce%bf%cf%85-%ce%b1%ce%bb%ce%bf%cf%85%ce%bc\/\">filtraci\u00f3n de la masa fundida de aluminio<\/a> Se puede dividir en dos etapas: la migraci\u00f3n de las inclusiones hacia el medio filtrante y la adhesi\u00f3n a la superficie del mismo. El rendimiento de la filtraci\u00f3n depende principalmente de las condiciones de flujo del metal fundido a trav\u00e9s del filtro, de las propiedades f\u00edsicas y qu\u00edmicas de la masa fundida, de las inclusiones y de los par\u00e1metros geom\u00e9tricos del filtro. La filtraci\u00f3n de inclusiones de m\u00e1s de 30 \u00b5m se basa principalmente en el bloqueo mec\u00e1nico, mientras que la filtraci\u00f3n de inclusiones de menos de 30 \u00b5m se considera, en general, que tiene dos mecanismos b\u00e1sicos: el filtrado en profundidad y el filtrado por torta de filtro.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11819\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/12\/Aluminum-Melt-Filtration-and-Purification.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/12\/Aluminum-Melt-Filtration-and-Purification.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/12\/Aluminum-Melt-Filtration-and-Purification-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Los filtros de lecho profundo filtran la masa fundida de la aleaci\u00f3n de aluminio y la elongaci\u00f3n de la masa fundida de aluminio aumenta en un 17,93% tras el filtrado, y solo presenta unas pocas impurezas de 6 \u00b5m, mientras que la aleaci\u00f3n de aluminio sin filtrar contiene numerosas impurezas de 40 \u00b5m. Esto se debe a que la masa fundida de aluminio entra en el filtro por su propia gravedad. Este proceso aumenta el contacto entre las inclusiones y las part\u00edculas del filtro, y las impurezas se adhieren f\u00e1cilmente a las part\u00edculas activas, mejorando as\u00ed la eficacia de la eliminaci\u00f3n de impurezas.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u03a4\u03b1 \u03c6\u03af\u03bb\u03c4\u03c1\u03b1 \u03b2\u03b1\u03b8\u03b9\u03ac\u03c2 \u03ba\u03bb\u03af\u03bd\u03b7\u03c2, \u03b3\u03bd\u03c9\u03c3\u03c4\u03ac \u03ba\u03b1\u03b9 \u03c9\u03c2 \u03c6\u03af\u03bb\u03c4\u03c1\u03b1 \u03c3\u03c5\u03c3\u03c3\u03ce\u03c1\u03b5\u03c5\u03c3\u03b7\u03c2 \u03c3\u03c9\u03bc\u03b1\u03c4\u03b9\u03b4\u03af\u03c9\u03bd, \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03b1\u03c0\u03cc \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b5\u03bd\u03b9\u03c3\u03c7\u03c5\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03c0\u03ac\u03bb\u03b5\u03c2 \u03b1\u03bb\u03bf\u03c5\u03bc\u03af\u03bd\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c4\u03bf\u03b9\u03b2\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2&hellip;<\/p>","protected":false},"author":1,"featured_media":11818,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13048,13047],"class_list":["post-11817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-13048","tag-13047"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u03c6\u03af\u03bb\u03c4\u03c1\u03b1 \u03b2\u03b1\u03b8\u03b9\u03ac\u03c2 \u03ba\u03bb\u03af\u03bd\u03b7\u03c2, \u03b4\u03b9\u03ae\u03b8\u03b7\u03c3\u03b7 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