{"id":4938,"date":"2020-09-19T05:25:53","date_gmt":"2020-09-19T05:25:53","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4938"},"modified":"2020-09-19T05:25:53","modified_gmt":"2020-09-19T05:25:53","slug":"degassing-rotor","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/degassing-rotor\/","title":{"rendered":"Rotor de desgasificaci\u00f3n"},"content":{"rendered":"

El rotor de desgasificaci\u00f3n es la mejor opci\u00f3n para un proceso de desgasificaci\u00f3n de alta eficiencia. Se inyectan gases inertes, como el arg\u00f3n o el nitr\u00f3geno, en el aluminio fundido a trav\u00e9s de ejes o rotores de cer\u00e1mica o grafito mecanizado. A una determinada velocidad de rotaci\u00f3n, se producen peque\u00f1as burbujas de gas inerte que se distribuyen por toda la masa fundida, reduciendo el contenido de hidr\u00f3geno disuelto hasta el nivel m\u00e1s bajo que puede verificarse mediante el \u00edndice de densidad del metal desgasificado %.<\/p>\n

La fuente de hidr\u00f3geno de la aleaci\u00f3n de aluminio es la humedad de la carga del horno, las herramientas de construcci\u00f3n, los materiales refractarios y los aditivos para el tratamiento del metal. El nivel de absorci\u00f3n de hidr\u00f3geno de la aleaci\u00f3n de aluminio depende del tipo de aleaci\u00f3n, la temperatura de trabajo y la atm\u00f3sfera.<\/p>\n

La absorci\u00f3n de hidr\u00f3geno en el aluminio fundido suele oscilar entre 0,01 y 0,8 ml\/100 g a temperatura de funcionamiento. La presencia de hidr\u00f3geno suele provocar la aparici\u00f3n de poros de gas, es decir, huecos en los materiales de fundici\u00f3n, cuya superficie es lisa, sin oxidaci\u00f3n o con alg\u00fan peque\u00f1o punto de oxidaci\u00f3n en la superficie. Reducir el hidr\u00f3geno disuelto al nivel m\u00e1s bajo posible antes de la fundici\u00f3n es el factor clave para controlar la tasa de rechazo de las piezas fundidas.<\/p>\n

Sabemos que, si las burbujas se generan y se distribuyen de forma m\u00e1s uniforme por toda la masa fundida, se mejorar\u00e1 la eficacia de la desgasificaci\u00f3n. Rotor de desgasificaci\u00f3n de carburo de silicio de AdTech unidad de desgasificaci\u00f3n <\/a>incorpora un dise\u00f1o exclusivo del cabezal del rotor con alta resistencia a la corrosi\u00f3n, lo que permite una distribuci\u00f3n m\u00e1s uniforme de las burbujas, garantizando as\u00ed una alta eficiencia de desgasificaci\u00f3n durante toda su vida \u00fatil.<\/p>\n

\"Rotor<\/p>\n

Los experimentos demuestran que el rendimiento del rotor de desgasificaci\u00f3n de SiC se mantiene estable a lo largo de toda su vida \u00fatil. La vida \u00fatil del rotor de SiC es tres veces mayor que la del rotor de grafito. Incluso tras un periodo prolongado de uso, la eficiencia de desgasificaci\u00f3n se mantiene en el nivel m\u00ednimo de 2,60 GM\/cc.<\/p>\n

Ante la creciente competencia, el sector de la fundici\u00f3n de metales tiene que ahorrar rupias, d\u00f3lares estadounidenses, yenes japoneses, euros, RMB, etc. En general, los consumibles se adquieren \u00fanicamente a su precio de compra, sin tener en cuenta los insumos relacionados con la producci\u00f3n, la calidad o el mantenimiento. Incluso si se tienen en cuenta los insumos de otros departamentos, el coste indirecto real no se calcula debido a la falta de tiempo, recursos o comprensi\u00f3n. Esta visi\u00f3n global de las decisiones de compra se denomina \u00abcoste total de propiedad\u00bb en el \u00e1mbito financiero.<\/p>\n

\u201cFactores de coste \u201ddirectos\u201c e \u201dindirectos\u00bb al utilizar el crisol: vida \u00fatil del rotor de desgasificaci\u00f3n, n\u00famero de conversiones, variables del proceso, residuos debidos a problemas de rendimiento, coste de producci\u00f3n, coste energ\u00e9tico y coste de la mano de obra cualificada.<\/p>\n

Los rotores de desgasificaci\u00f3n de carburo de silicio se han probado en numerosas operaciones de fundici\u00f3n de metales en todo el mundo. Su rendimiento, caracterizado por una mayor eficiencia de desgasificaci\u00f3n y una vida \u00fatil m\u00e1s prolongada, est\u00e1 empezando a ofrecer importantes ventajas. Estas ventajas se est\u00e1n cuantificando para generar modelos de coste total de propiedad (TCO) que ayuden a los clientes a comprender el valor de sus productos, m\u00e1s all\u00e1 de los costes. En las operaciones de fundici\u00f3n hay que tener en cuenta el tiempo de inactividad, la fiabilidad, la mano de obra, las piezas no consumibles, el stock local y los plazos de entrega.<\/p>","protected":false},"excerpt":{"rendered":"

Degassing rotor is the best choice for high efficiency degassing operation. Inert gases such as argon \/ nitrogen are blown into molten aluminum via ceramic…<\/p>","protected":false},"author":1,"featured_media":4939,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-4938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nDegassing Rotor for Hydrogen Removal in Molten Aluminum<\/title>\n<meta name=\"description\" content=\"Degassing rotor is the best choice for high efficiency degassing operation. 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