{"id":11172,"date":"2021-11-12T08:08:29","date_gmt":"2021-11-12T08:08:29","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11172"},"modified":"2021-11-12T08:08:29","modified_gmt":"2021-11-12T08:08:29","slug":"fluxes-for-aluminium-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/fluxes-for-aluminium-refining\/","title":{"rendered":"Fundentes para el refinado del aluminio"},"content":{"rendered":"<p>Los fundentes para el refinado del aluminio se utilizan para modificar la estructura de la aleaci\u00f3n de aluminio con el fin de mejorar las propiedades espec\u00edficas del producto fundido, tales como la resistencia a la tracci\u00f3n, el alargamiento, la maquinabilidad, la dispersi\u00f3n de la porosidad, una mayor estanqueidad a la presi\u00f3n y la prevenci\u00f3n de roturas en caliente, en funci\u00f3n de la composici\u00f3n qu\u00edmica y del tipo de aleaci\u00f3n. Adem\u00e1s, los fundentes de refinado reducen el contenido de hidr\u00f3geno y facilitan la separaci\u00f3n de las impurezas no met\u00e1licas de la masa fundida.<\/p>\n<p>Los fundentes para la refinaci\u00f3n de aluminio Portland se utilizan como complemento de los aditivos de la aleaci\u00f3n maestra o por s\u00ed solos, en funci\u00f3n de las circunstancias concretas de la producci\u00f3n.<\/p>\n<p>Cuando se a\u00f1ade a las aleaciones de aluminio forjado, <a href=\"http:\/\/www.alalloycasting.com\/es\/foundry-refining-flux\/\">fundente de refinado<\/a> aumenta el n\u00famero de n\u00facleos, lo que a su vez aumenta el n\u00famero de cristales cuando el metal se solidifica. La microestructura resultante se caracteriza por un tama\u00f1o de grano m\u00e1s fino y unos brazos dendr\u00edticos m\u00e1s cortos, lo que da lugar a mejores propiedades mec\u00e1nicas.<\/p>\n<p>Cuando se a\u00f1aden a la aleaci\u00f3n de Al-Si fundida, los componentes del fundente de refinado mejoran la fluidez de la masa fundida, lo cual es especialmente importante para las piezas de fundici\u00f3n de paredes delgadas. El fundente de refinado tambi\u00e9n ralentiza el crecimiento de los cristales de silicio (Si) durante el proceso de solidificaci\u00f3n.<\/p>\n<p>El 8 de noviembre de 2021, la fundici\u00f3n de aluminio de Portland, en Australia, retomar\u00e1 su capacidad de producci\u00f3n reducida a largo plazo de 35 000 toneladas al a\u00f1o. Ante la falta de suministro de metal, esto elevar\u00e1 la capacidad de producci\u00f3n de la planta a aproximadamente 95%.<\/p>\n<p>Los procedimientos de recuperaci\u00f3n de la capacidad, que han estado inactivos desde 2009, se pondr\u00e1n en marcha de inmediato, y la producci\u00f3n de metal comenzar\u00e1 en el tercer trimestre de 2022.<\/p>\n<p>Michael Gollschewski, presidente de Alcoa Australia, afirm\u00f3: \u201cPoner en marcha de nuevo la capacidad inactiva puede mejorar la estructura de costes, la competitividad y la sostenibilidad a largo plazo de la fundici\u00f3n\u201d.\u201d<\/p>\n<p>Debido a las restricciones de producci\u00f3n en China, el mayor productor mundial, los precios del aluminio se dispararon hasta alcanzar su m\u00e1ximo en 13 a\u00f1os en octubre de 2021. Sin embargo, debido a la fuerte demanda de este metal ligero en los sectores del embalaje y la construcci\u00f3n, los precios del aluminio siguen tendiendo al alza.<\/p>\n<p>La fundici\u00f3n de aluminio de Portland tiene una capacidad de producci\u00f3n total de 358 000 toneladas al a\u00f1o. Recibi\u00f3 ayudas del Gobierno a principios de 2021. Alcoa, el grupo integral del aluminio de renombre mundial, anunci\u00f3 su retirada para recortar costes y reducir las emisiones de carbono.<\/p>\n<p>La fundici\u00f3n de aluminio de Portland es el mayor consumidor individual de electricidad de Victoria y ha firmado un contrato de suministro de electricidad a bajo coste con AGL Energy y Alinta Energy como parte del plan de rescate acordado en marzo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fluxes for Aluminium Refining are used to modify the aluminum alloy structure to improve cast product specific properties, such as tensile strength, elongation, machinability, dispersion&hellip;<\/p>","protected":false},"author":1,"featured_media":11176,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-11172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fluxes for Aluminium Refining -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Fluxes for Aluminium Refining are used to modify the aluminum alloy structure to improve cast product specific properties.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/es\/fluxes-for-aluminium-refining\/\" \/>\n<meta property=\"og:locale\" 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