{"id":7397,"date":"2020-10-14T07:30:46","date_gmt":"2020-10-14T07:30:46","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=7397"},"modified":"2020-10-14T07:30:46","modified_gmt":"2020-10-14T07:30:46","slug":"aluminium-degassing-unit","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/es\/aluminium-degassing-unit\/","title":{"rendered":"Unidad de desgasificaci\u00f3n de aluminio"},"content":{"rendered":"<p><strong>Unidad de desgasificaci\u00f3n de aluminio<\/strong> elimina las impurezas del metal fundido para obtener metales m\u00e1s limpios y de mejor calidad. Es uno de los m\u00e9todos de limpieza m\u00e1s habituales y eficaces que se utilizan en las fundiciones.<\/p>\n<p>Hay dos tipos principales de impurezas que se encuentran en el aluminio fundido: el hidr\u00f3geno disuelto y los s\u00f3lidos<\/p>\n<p>Inclusiones no met\u00e1licas. A medida que el metal se enfr\u00eda, el hidr\u00f3geno disuelto se escapa de la soluci\u00f3n y forma poros perjudiciales. Esta porosidad y las inclusiones s\u00f3lidas no met\u00e1licas reducen la resistencia y afectan negativamente al rendimiento final de las piezas fundidas de aluminio.<\/p>\n<p><img class=\"alignnone size-full wp-image-7399\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/In-Line-Degasser.jpg\" alt=\"Desgasificador en l\u00ednea\" width=\"600\" height=\"807\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/In-Line-Degasser.jpg 600w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/In-Line-Degasser-223x300.jpg 223w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>En el caso del aluminio, la reacci\u00f3n con el vapor de agua es la siguiente:<\/strong><\/p>\n<p>\u00b72 Al + 3 H\u2082O = Al\u2082O\u2083 + 3 H\u2082<\/p>\n<p>A continuaci\u00f3n, el hidr\u00f3geno molecular se disocia en el metal fundido:<\/p>\n<p>\u00b73 H2 = 6 horas<\/p>\n<p>El aluminio fundido tambi\u00e9n interact\u00faa con el ox\u00edgeno de la atm\u00f3sfera, por lo que, adem\u00e1s de la reacci\u00f3n de oxidaci\u00f3n que se muestra en la ecuaci\u00f3n (a), tambi\u00e9n tienen lugar las siguientes reacciones:<\/p>\n<p>\u00b74 Al + 3 O\u2082 = 2 Al\u2082O\u2083<\/p>\n<p>Esta reacci\u00f3n da lugar a la formaci\u00f3n de capas de \u00f3xido en la superficie del metal fundido durante el proceso de fusi\u00f3n y durante cualquier traslado posterior del metal fundido.<br \/>\nLos \u00f3xidos producidos quedan retenidos en la mayor parte del material fundido y, posteriormente, pasan a la pieza fundida acabada.<br \/>\nOtras inclusiones no met\u00e1licas, como los carburos, los nitruros o los boruros, pueden proceder de fuentes como los materiales de los crisoles u otros materiales refractarios.<\/p>\n<p><img class=\"alignnone size-full wp-image-7398\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/Aluminium-Degassing-Unit.jpg\" alt=\"Unidad de desgasificaci\u00f3n de aluminio\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/Aluminium-Degassing-Unit.jpg 800w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/Aluminium-Degassing-Unit-300x200.jpg 300w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/Aluminium-Degassing-Unit-768x512.jpg 768w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2020\/10\/Aluminium-Degassing-Unit-700x466.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Por lo tanto,<\/strong> Es necesario utilizar la unidad de desgasificaci\u00f3n de aluminio para eliminar el hidr\u00f3geno disuelto y las inclusiones no met\u00e1licas del aluminio fundido antes de la colada, con el fin de obtener la mejor calidad.<br \/>\nLos procesos que se han desarrollado para la limpieza de metales son procesos f\u00edsicos que implican el uso de flujos de gas inerte.<br \/>\nEl hidr\u00f3geno disuelto en el material fundido se difunde hacia las burbujas ascendentes del gas de fundente y es transportado hasta la superficie del material fundido. Este proceso se basa en dos etapas principales:<\/p>\n<p>La velocidad a la que el hidr\u00f3geno se difunde a trav\u00e9s de la capa l\u00edmite de difusi\u00f3n hacia las burbujas inertes<br \/>\nConcentraci\u00f3n de hidr\u00f3geno en burbujas inertes<br \/>\nLa difusi\u00f3n es la fase en la que se determina la velocidad de desgasificaci\u00f3n. Por lo tanto, para lograr la m\u00e1xima eficiencia de desgasificaci\u00f3n, deben cumplirse los siguientes requisitos:<\/p>\n<p>Las burbujas del gas inerte son m\u00e1s peque\u00f1as y el tiempo de permanencia en el metal fundido es mayor. Esto garantiza una amplia superficie de contacto entre las burbujas de gas inerte y el metal fundido, lo que asegura un mayor coeficiente de transferencia de masa en comparaci\u00f3n con la capa de difusi\u00f3n.<\/p>\n<p>Escribe a sales@adtechamm.com para comprar <a href=\"http:\/\/www.adtechamm.com\/es\/online-degassing-unit-plate-type-filtering-unit\/\">Unidad de desgasificaci\u00f3n<\/a>.<br \/>\nLa distribuci\u00f3n de las burbujas inertes en toda la secci\u00f3n transversal del metal fundido ha sido muy amplia<br \/>\nEl movimiento completo del material fundido acelera la transmisi\u00f3n de hidr\u00f3geno a las burbujas inertes<br \/>\nLa superficie est\u00e1tica del ba\u00f1o de material fundido para evitar la absorci\u00f3n de hidr\u00f3geno nuevo procedente de la reacci\u00f3n con la atm\u00f3sfera.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminium Degassing Unit removes impurities from the melt to provide cleaner and better quality metals. It is one of the most common and effective cleaning methods used in foundries. There are two main types of impurities found in molten aluminum: dissolved hydrogen and solids Non-metallic&#8230;<\/p>","protected":false},"author":1,"featured_media":7398,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[45391,52],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Aluminium Degassing Unit | Adtech China -sales@adtechamm.com<\/title>\n<meta name=\"description\" content=\"Aluminium Degassing Unit removes impurities from the melt to provide cleaner and better quality metals. 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