{"id":5513,"date":"2019-08-09T02:35:37","date_gmt":"2019-08-09T02:35:37","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=5513"},"modified":"2019-08-09T02:35:37","modified_gmt":"2019-08-09T02:35:37","slug":"degassing-aluminium","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/es\/degassing-aluminium\/","title":{"rendered":"Desgasificaci\u00f3n del aluminio"},"content":{"rendered":"<p><strong>Desgasificaci\u00f3n del aluminio<\/strong><\/p>\n<p><strong>Desgasificaci\u00f3n del aluminio con nitr\u00f3geno<\/strong><br \/>\nEl nitr\u00f3geno es extraordinariamente inerte y no creo que reaccione de ninguna manera con el simple aluminio y el hidr\u00f3geno a esta temperatura y presi\u00f3n.<br \/>\nPodr\u00eda reaccionar con el magnesio presente, pero las aleaciones de aluminio suelen ser poco reactivas, incluso con el magnesio. Como ya han se\u00f1alado otros, si se a\u00f1ade por error una cantidad considerable de magnesio, el crisol puede llegar a arder, ya sea en presencia de ox\u00edgeno, CO\u2082 o nitr\u00f3geno, sobre todo cuando est\u00e1 caliente, ya que la presi\u00f3n de vapor del magnesio es elevada, al igual que ocurre con el zinc en el bronce fundido.<\/p>\n<p>El objetivo del desgasificado del aluminio es eliminar el hidr\u00f3geno, las inclusiones no met\u00e1licas y los oligoelementos no deseados. El refinado se lleva a cabo normalmente tras la adici\u00f3n de la aleaci\u00f3n. En algunos casos, la masa fundida tambi\u00e9n se somete a un tratamiento previo antes de la aleaci\u00f3n. La inyecci\u00f3n de gas es el m\u00e9todo de refinado m\u00e1s utilizado.<\/p>\n<p>Se inyecta un gas a trav\u00e9s del rotor de desgasificaci\u00f3n de nitruro de silicio para desgasificar el aluminio. Los gases utilizados son el nitr\u00f3geno, el arg\u00f3n y el cloro, as\u00ed como mezclas de dichos gases.<\/p>\n<p><strong>\u00bfCu\u00e1l es el principio b\u00e1sico de la desgasificaci\u00f3n del aluminio?<\/strong><br \/>\nEl nitr\u00f3geno gaseoso sale por la boquilla de grafito del desgasificador rotativo y flota en el aluminio fundido.<br \/>\nLa presi\u00f3n parcial de hidr\u00f3geno en la burbuja de nitr\u00f3geno que acaba de salir de la boquilla de grafito es 0.<br \/>\nCuando el nitr\u00f3geno flota, el hidr\u00f3geno se difunde desde el aluminio l\u00edquido hacia la burbuja de nitr\u00f3geno impulsado por la diferencia de presi\u00f3n del hidr\u00f3geno, y el proceso contin\u00faa hasta que la presi\u00f3n parcial del hidr\u00f3geno en la burbuja de nitr\u00f3geno se equilibra con la del hidr\u00f3geno en el aluminio l\u00edquido; en ese momento, la fase de nitr\u00f3geno se detiene y, a continuaci\u00f3n, el gas nitr\u00f3geno flota hasta la superficie para ser eliminado, logrando as\u00ed la desgasificaci\u00f3n.<\/p>\n<p><img class=\"alignnone size-full wp-image-5514\" src=\"http:\/\/www.adtechamm.com\/wp-content\/uploads\/2019\/08\/Degassing-Aluminium.jpg\" alt=\"Desgasificaci\u00f3n del aluminio\" width=\"800\" height=\"600\" srcset=\"https:\/\/www.adtechamm.com\/wp-content\/uploads\/2019\/08\/Degassing-Aluminium.jpg 800w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2019\/08\/Degassing-Aluminium-300x225.jpg 300w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2019\/08\/Degassing-Aluminium-768x576.jpg 768w, https:\/\/www.adtechamm.com\/wp-content\/uploads\/2019\/08\/Degassing-Aluminium-700x525.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>AdTech<a href=\"http:\/\/www.adtechamm.com\/es\/portfolio_page\/online-degassing-unit\/\"> Unidad de desgasificaci\u00f3n en l\u00ednea<\/a> Se ha optimizado el volumen de las burbujas de nitr\u00f3geno mediante la mejora de la boquilla giratoria en el proceso de purificaci\u00f3n del nitr\u00f3geno, y se ha aumentado la superficie de contacto entre el nitr\u00f3geno y el aluminio, mejorando as\u00ed el efecto de desgasificaci\u00f3n y eliminaci\u00f3n de escorias, y logrando el objetivo de purificar el aluminio. Mejorar la calidad del producto.<\/p>\n<p>Tanto el arg\u00f3n como el nitr\u00f3geno pueden utilizarse como gas inerte para desgasificar el aluminio fundido. La pureza del gas inerte debe ser superior al 99,99%.<\/p>\n<p>El control de caudal en el recipiente de aluminio con nitr\u00f3geno permite ajustar el caudal del gas en funci\u00f3n del volumen del metal l\u00edquido que se est\u00e1 tratando, y la velocidad de la varilla giratoria y del rotor se puede ajustar para generar una burbuja del tama\u00f1o adecuado que facilite la difusi\u00f3n del gas inerte.<\/p>\n<p><iframe width=\"1060\" height=\"596\" src=\"https:\/\/www.youtube.com\/embed\/f18FY7eXx1A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>","protected":false},"excerpt":{"rendered":"<p>Degassing Aluminium Degassing Aluminium with Nitrogen Nitrogen is extraordinarily unreactive and I don&#8217;t see it doing anything with mere aluminum and hydrogen at this temperature and pressure. It could combine with magnesium content, but aluminum alloys are generally unreactive, even with magnesium. As others have&#8230;<\/p>","protected":false},"author":1,"featured_media":5514,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[25781,25775,25776,25774,25780,25779,25782,25777,25778],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Degassing Aluminium basic principle | Adtech China<\/title>\n<meta name=\"description\" content=\"Degassing Aluminium is to remove hydrogen, non-metallic inclusions and unwanted trace elements. 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