{"id":8203,"date":"2021-03-31T02:48:57","date_gmt":"2021-03-31T02:48:57","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8203"},"modified":"2021-03-31T02:48:57","modified_gmt":"2021-03-31T02:48:57","slug":"purification-treatment-of-aluminum-melt","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/purification-treatment-of-aluminum-melt\/","title":{"rendered":"Tratamiento de purificaci\u00f3n del aluminio fundido"},"content":{"rendered":"

El papel de aluminio presenta una serie de ventajas, como su ligereza, hermeticidad, buen recubrimiento, ausencia de toxicidad y resistencia a la humedad, por lo que se utiliza ampliamente en la econom\u00eda nacional y en la vida cotidiana de la poblaci\u00f3n. En la actualidad, se emplea principalmente en los sectores del embalaje, el transporte y la construcci\u00f3n. Las f\u00e1bricas de papel de aluminio suelen emplear el m\u00e9todo de colada y laminaci\u00f3n para producir lingotes. Para fabricar papel de aluminio \u00abdoble cero\u00bb con un espesor menor, menos poros, mejores propiedades mec\u00e1nicas y una mayor calidad superficial, se exigen requisitos m\u00e1s estrictos en cuanto a la tecnolog\u00eda de colada y laminaci\u00f3n, as\u00ed como al tratamiento de purificaci\u00f3n del aluminio fundido.<\/p>\n

Diversos estudios han demostrado que la presencia de hidr\u00f3geno e inclusiones en el aluminio l\u00edquido electrol\u00edtico puede provocar f\u00e1cilmente defectos como grietas en las planchas, burbujas, inclusiones de escoria y granos gruesos. Para producir papel de aluminio con un espesor menor, menos poros, mejores propiedades mec\u00e1nicas y una mejor calidad superficial, es necesario controlar estrictamente el proceso de colada y el tratamiento de purificaci\u00f3n del aluminio fundido.<\/p>\n

Control de la calidad del aluminio fundido durante la producci\u00f3n
\nTratamiento de refrigeraci\u00f3n por l\u00edquido de aluminio: Con el fin de reducir la influencia del l\u00edquido de aluminio electrol\u00edtico a alta temperatura sobre la calidad del producto durante el producci\u00f3n de piezas fundidas y laminadas<\/a> En este proceso, se a\u00f1ade una determinada cantidad de material s\u00f3lido a la aleaci\u00f3n en el horno de fusi\u00f3n para reducir la temperatura del metal fundido. Tras a\u00f1adir una determinada proporci\u00f3n de materiales s\u00f3lidos, la temperatura de fusi\u00f3n del metal fundido suele reducirse hasta situarse en el intervalo de 720-760 \u2103.<\/p>\n

Tratamiento de purificaci\u00f3n del aluminio fundido
\nEl aluminio l\u00edquido electrol\u00edtico se enfr\u00eda a\u00f1adiendo algunos materiales s\u00f3lidos para reducir el contenido de hidr\u00f3geno y escoria, y a\u00fan es necesaria una purificaci\u00f3n adicional de la masa fundida. Dado que la l\u00e1mina \u00abdoble cero\u00bb tiene requisitos estrictos en cuanto a la estructura interna, la calidad de la superficie, la composici\u00f3n qu\u00edmica y las propiedades mec\u00e1nicas de sus piezas en bruto, no se permiten defectos como burbujas de aire, inclusiones de escoria ni grietas, y el tama\u00f1o del grano debe ser de nivel 1. Por lo tanto, es necesario aplicar una serie de medidas eficaces de desgasificaci\u00f3n y eliminaci\u00f3n de escoria al metal fundido antes de la colada y la laminaci\u00f3n.<\/p>\n

\"Tratamiento<\/p>\n

Tratamiento de purificaci\u00f3n en el horno: El m\u00e9todo de purificaci\u00f3n del aluminio fundido en el horno est\u00e1tico se basa en el proceso de refinado con agente refinador. Durante la operaci\u00f3n de refinado, la temperatura debe ser de 735 \u2103 y la duraci\u00f3n, de 15 min. Tras el refinado, se retira la escoria y se obtiene el aluminio libre de Na agente de recubrimiento<\/a> se utiliza para proteger contra la fusi\u00f3n.<\/p>\n

Tratamiento de purificaci\u00f3n en l\u00ednea del metal fundido. Aunque el aluminio fundido se somete a una serie de tratamientos de purificaci\u00f3n en el horno, el grado de purificaci\u00f3n es limitado. Tras el refinado en el horno, permanece en el metal fundido una cierta cantidad de inclusiones de gas y \u00f3xido. Para producir l\u00e1minas de aluminio \u00abdoble cero\u00bb de alta calidad, es necesario obtener un metal fundido de aluminio m\u00e1s puro. El dispositivo de desgasificaci\u00f3n continua en l\u00ednea adopta un dise\u00f1o tipo caja y utiliza gas arg\u00f3n de alta pureza, que gira y se pulveriza sobre el aluminio fundido a trav\u00e9s de dos rotores de grafito para lograr la purificaci\u00f3n del fundido. El dispositivo de filtrado del fundido en l\u00ednea adopta un modo de filtro de caja, y la placa filtrante adopta material cer\u00e1mico celular<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Aluminum foil has a series of advantages such as light weight, airtightness, good coating, non-toxic and moisture-proof, so it is widely used in the national…<\/p>","protected":false},"author":1,"featured_media":8204,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nPurification Treatment of Aluminum Melt,Online Filtration<\/title>\n<meta name=\"description\" content=\"The purification treatment of aluminum melt is important for foundry. 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