{"id":5337,"date":"2020-09-30T06:19:57","date_gmt":"2020-09-30T06:19:57","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5337"},"modified":"2020-09-30T06:19:57","modified_gmt":"2020-09-30T06:19:57","slug":"purification-technology","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/purification-technology\/","title":{"rendered":"Tecnolog\u00eda de purificaci\u00f3n"},"content":{"rendered":"<p>Con la continua expansi\u00f3n del uso de las aleaciones de aluminio en diversos \u00e1mbitos de la econom\u00eda nacional, se plantean requisitos cada vez m\u00e1s exigentes en cuanto a la calidad interna de estos materiales. Durante el proceso de producci\u00f3n, es necesario controlar estrictamente la composici\u00f3n qu\u00edmica de la aleaci\u00f3n de aluminio y los defectos tales como la contracci\u00f3n, la porosidad y las inclusiones de escoria en el lingote, ya que la calidad intr\u00ednseca de los productos procesados se ve afectada por la calidad del lingote, y la calidad interna de este depende en gran medida de la calidad de la masa fundida. Por lo tanto, la tecnolog\u00eda de purificaci\u00f3n de la masa fundida de aleaci\u00f3n de aluminio reviste una gran importancia. Teniendo en cuenta los equipos y las condiciones de proceso existentes, se analiza el m\u00e9todo de control del contenido de hidr\u00f3geno en la masa fundida de aluminio, con el fin de reducir dicho contenido y obtener lingotes de alta calidad.<\/p>\n<h2>Tecnolog\u00eda de purificaci\u00f3n del aluminio<\/h2>\n<p>El gas presente en el aluminio fundido es principalmente hidr\u00f3geno (con una fracci\u00f3n volum\u00e9trica de entre el 60% y el 90%), seguido de nitr\u00f3geno, ox\u00edgeno, mon\u00f3xido de carbono, etc. Las tecnolog\u00edas de purificaci\u00f3n del aluminio fundido destinadas principalmente a la eliminaci\u00f3n de hidr\u00f3geno incluyen, entre otras, el m\u00e9todo de flotaci\u00f3n por burbujas, el m\u00e9todo de tratamiento al vac\u00edo, el m\u00e9todo de tratamiento por ultrasonidos y el m\u00e9todo de eliminaci\u00f3n de hidr\u00f3geno mediante tierras raras. El m\u00e9todo de flotaci\u00f3n por burbujas se utiliza ampliamente debido a su sencillez y alta eficiencia. Proceso de eliminaci\u00f3n de hidr\u00f3geno mediante flotaci\u00f3n por burbujas del aluminio fundido: los \u00e1tomos de hidr\u00f3geno disueltos en el aluminio l\u00edquido migran hacia la periferia de las burbujas del agente purificador (arg\u00f3n o nitr\u00f3geno, etc.), son adsorbidos alrededor de las burbujas y forman mol\u00e9culas de hidr\u00f3geno en su interior. Finalmente, el aluminio fundido se separa a medida que las burbujas flotan hacia arriba.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5339\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-Technology-1.jpg\" alt=\"Tecnolog\u00eda de purificaci\u00f3n\" width=\"400\" height=\"500\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-Technology-1.jpg 400w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-Technology-1-240x300.jpg 240w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>Equipos principales: horno de fundici\u00f3n, dispositivo de agitaci\u00f3n electromagn\u00e9tica, dispositivo de desgasificaci\u00f3n en l\u00ednea, dispositivo de filtrado en l\u00ednea, <a href=\"http:\/\/www.alalloycasting.com\/es\/metal-transfer-runner-system\/\">sistema de gu\u00edas<\/a>. El aluminio primario electrol\u00edtico y los materiales se funden y refinan en un horno de fundici\u00f3n para obtener una masa fundida de aluminio que cumpla los requisitos de temperatura y composici\u00f3n, y a continuaci\u00f3n se deja reposar para su tratamiento. La masa fundida en reposo se purifica a\u00fan m\u00e1s y se vierte tras un proceso de desgasificaci\u00f3n y filtraci\u00f3n en l\u00ednea a trav\u00e9s de los canales de colada.<\/p>\n<p>La solubilidad del aluminio cuando se calienta a 300 \u00b0C en aire es de solo 0,001 ml\/(100 g\u00b7Al), y el aluminio s\u00f3lido pr\u00e1cticamente no absorbe hidr\u00f3geno. Cuando el aluminio fundido entra en el sistema de colada, el contenido de hidr\u00f3geno pr\u00e1cticamente no var\u00eda. Adem\u00e1s de las materias primas, la fuente de hidr\u00f3geno del metal fundido es principalmente la absorci\u00f3n de hidr\u00f3geno durante el proceso de fundici\u00f3n y colada. El objetivo de utilizar un sistema en l\u00ednea <a href=\"http:\/\/www.alalloycasting.com\/es\/degassing-equipment\/\">equipos de desgasificaci\u00f3n<\/a> es purificar a\u00fan m\u00e1s el aluminio fundido fuera del horno y eliminar mejor los gases y las escorias del aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"<p>With the continuous expansion of aluminum alloy materials in various fields of the national economy, higher and higher requirements are put forward for the internal&hellip;<\/p>","protected":false},"author":1,"featured_media":5338,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5337","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>Purification Technology for Molten Aluminum | Degassing Equipment<\/title>\n<meta name=\"description\" content=\"Purification technology of the aluminum alloy melt is very important. 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