{"id":11124,"date":"2021-11-11T06:45:30","date_gmt":"2021-11-11T06:45:30","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11124"},"modified":"2021-11-11T06:45:30","modified_gmt":"2021-11-11T06:45:30","slug":"flux-for-recycled-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/flux-for-recycled-aluminum\/","title":{"rendered":"Fundente para aluminio reciclado"},"content":{"rendered":"

El fundente de refinado es adecuado para la desgasificaci\u00f3n y el refinado del aluminio reciclado y de las aleaciones de aluminio, ya que permite eliminar eficazmente las inclusiones de \u00f3xido y el hidr\u00f3geno del aluminio fundido.<\/p>\n

El KCI y el NaCl son los componentes b\u00e1sicos m\u00e1s habituales en los fundentes para aleaciones de aluminio, y act\u00faan principalmente como agentes de recubrimiento<\/a>. Sin embargo, la adici\u00f3n de una peque\u00f1a cantidad de sal fluorada a la mezcla de sales cloradas se utiliza principalmente para eliminar los residuos. Al mismo tiempo, la sal clorada puede potenciar la capacidad del agente limpiador de escorias para adsorber las inclusiones de oxidaci\u00f3n.<\/p>\n

La fundici\u00f3n es una parte fundamental de la tecnolog\u00eda de reciclaje del aluminio de desecho, y la calidad de la tecnolog\u00eda de fundici\u00f3n viene determinada en gran medida por el fundente y su correspondiente proceso de tratamiento.<\/p>\n

El proceso de fusi\u00f3n es el siguiente:<\/p>\n

1. En primer lugar, limpia el horno de crisol, la cuchara de colada, la campana de vidrio y el molde de la muestra de colada, y a continuaci\u00f3n precalienta el conjunto. Una vez alcanzado un precalentamiento de unos 200 \u2103, aplica la pintura y d\u00e9jala secar;
\n2. Durante la fundici\u00f3n, a\u00f1ada primero el lingote de aluminio de aleaci\u00f3n, cali\u00e9ntelo por encima de la temperatura de liquidus y f\u00fandalo por completo; a continuaci\u00f3n, a\u00f1ada gradualmente la torta de aluminio de desecho. Tras a\u00f1adir la torta de aluminio de desecho, cuando la temperatura del aluminio fundido alcance la temperatura de fundici\u00f3n prevista en el dise\u00f1o experimental, a\u00f1ada el fundente para aluminio reciclado y remu\u00e9valo continuamente. Cuando se observe que el tama\u00f1o de las part\u00edculas de la escoria cambia de grande a peque\u00f1o hasta convertirse en un polvo fino, ret\u00edrela;
\n3. Tras la escoria, cuando la temperatura del aluminio fundido se mantenga en unos 720 \u2103, a\u00f1adir el agente de refinado auxiliar. Cuando ya no haya burbujas de aire ni inclusiones de escoria que floten, retirar r\u00e1pidamente las inclusiones de escoria;
\n4. Fundir la muestra y el lingote de aluminio inmediatamente despu\u00e9s de retirar la escoria.<\/p>\n

\"\"<\/p>\n

La chatarra de aluminio nacional representa 89% del total de materias primas de aluminio reciclado de China, lo que indica que la industria de fabricaci\u00f3n de aluminio reciclado es cada vez m\u00e1s autosuficiente. La capacidad de producci\u00f3n de aluminio secundario de China ha superado los 14 millones de toneladas, lo que representa aproximadamente el 30% de la producci\u00f3n mundial de aluminio secundario. Adem\u00e1s, ha superado a Jap\u00f3n para convertirse en el mayor productor mundial de aluminio secundario.<\/p>\n

El sector en su conjunto se ha ido desarrollando de forma m\u00e1s equilibrada. Aunque las grandes empresas de reciclaje se han convertido en una importante fuente de chatarra de aluminio, esto indica que la concentraci\u00f3n del sector est\u00e1 aumentando.<\/p>\n

Durante el periodo del \u201c13.\u00ba Plan Quinquenal\u201d, la producci\u00f3n de aluminio secundario de mi pa\u00eds alcanz\u00f3 los 34,8 millones de toneladas, lo que permiti\u00f3 reducir el volumen de extracci\u00f3n de aluminio en 139,2 millones de toneladas, ahorrar carb\u00f3n est\u00e1ndar y ahorrar agua en 120 millones de toneladas y 770 millones de metros c\u00fabicos, respectivamente. Las emisiones de di\u00f3xido de carbono y de residuos s\u00f3lidos se redujeron en 380 millones por tonelada y 696 millones por tonelada, respectivamente.<\/p>\n

Aunque la industria del aluminio de segunda fundici\u00f3n de China ha logrado grandes avances en el pasado, cabe se\u00f1alar que la proporci\u00f3n de aluminio de segunda fundici\u00f3n en la producci\u00f3n total de aluminio del pa\u00eds sigue siendo comparable a la de los pa\u00edses industrializados en la d\u00e9cada de los 80.<\/p>","protected":false},"excerpt":{"rendered":"

Refining flux is suitable for the recycled aluminum and aluminum alloy degassing and refining, which can effectively remove oxide inclusion and hydrogen from the molten…<\/p>","protected":false},"author":1,"featured_media":11140,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[1470,12797],"class_list":["post-11124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-alloy-refining","tag-flux-for-recycled-aluminum"],"yoast_head":"\nFlux for Recycled Aluminum, Aluminum Alloy Refining<\/title>\n<meta name=\"description\" content=\"Refining flux is suitable for the recycled aluminum and aluminum alloy degassing and refining, which can effectively remove oxide inclusion.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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