{"id":8922,"date":"2021-05-25T08:21:02","date_gmt":"2021-05-25T08:21:02","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8922"},"modified":"2021-05-25T09:09:52","modified_gmt":"2021-05-25T09:09:52","slug":"molten-alu-casting-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/molten-alu-casting-filter\/","title":{"rendered":"Filtro para fundici\u00f3n de aluminio fundido"},"content":{"rendered":"

El filtro para fundici\u00f3n de aluminio fundido es un m\u00e9todo eficaz para eliminar las inclusiones del aluminio fundido. La filtraci\u00f3n del metal fundido mediante filtros de espuma cer\u00e1mica ha sido probada por los usuarios desde hace mucho tiempo y puede mejorar el rendimiento de la producci\u00f3n.<\/p>\n

La pel\u00edcula de \u00f3xido est\u00e1 formada por inclusiones no met\u00e1licas y gas no consumido (principalmente hidr\u00f3geno) que, en su mayor parte, consisten en \u00f3xido de aluminio en el lingote. Por lo tanto, la pel\u00edcula de \u00f3xido es un defecto espec\u00edfico de tipo inclusi\u00f3n no met\u00e1lica en el lingote, pero difiere de la inclusi\u00f3n de escoria. Por lo general, no se puede detectar al examinar la pieza de ensayo a bajo aumento ni la estructura de fractura del lingote. Solo se puede detectar mediante muestras elaboradas de forma especial (mediante el repujado de la muestra del lingote).<\/p>\n

La pel\u00edcula de \u00f3xido que se observa en la superficie de fractura de la muestra del proceso de lingotes se puede dividir, a grandes rasgos, en tres tipos: uno es una pel\u00edcula de \u00f3xido en forma de escamas de color amarillo claro, marr\u00f3n o marr\u00f3n oscuro; otro es una pel\u00edcula cuya morfolog\u00eda superficial es similar a la de la pel\u00edcula de \u00f3xido en escamas, pero que presenta \u201clentejuelas\u201d de color blanco brillante; y un tercer tipo consiste en \u201cpeque\u00f1as manchas brillantes\u201d redondas u ovaladas con un brillo blanco plateado.<\/p>\n

Entre ellas, la pel\u00edcula de \u00f3xido escamosa es una capa formada por inclusiones s\u00f3lidas no met\u00e1licas o burbujas de aire con una superficie oxidada. Las escamas son capas formadas por part\u00edculas sueltas no compactadas y burbujas de aire, y los peque\u00f1os puntos brillantes son soluciones s\u00f3lidas sobresaturadas. Burbujas de hidr\u00f3geno secundarias precipitadas en el cuerpo.<\/p>\n

\"Tratamiento<\/p>\n

Los m\u00e9todos para reducir y prevenir la formaci\u00f3n de la pel\u00edcula de \u00f3xido que se produce en los lingotes de aleaci\u00f3n de aluminio son los siguientes:<\/strong><\/p>\n

En cada etapa del proceso, desde el almacenamiento y la preparaci\u00f3n de la materia prima hasta la fundici\u00f3n y el moldeo, se ponen en marcha los tres aspectos de prevenci\u00f3n, protecci\u00f3n y refinado, y se adoptan las medidas correspondientes para garantizar la pureza del metal.<\/p>\n

En segundo lugar, las medidas para prevenir y reducir la pel\u00edcula de \u00f3xido no solo deben centrarse en eliminar las inclusiones s\u00f3lidas no met\u00e1licas del ba\u00f1o de fusi\u00f3n, sino tambi\u00e9n en reducir al m\u00e1ximo el contenido de hidr\u00f3geno en el mismo.<\/p>\n

De entre las medidas mencionadas, las m\u00e1s importantes deber\u00edan ser los cuatro puntos siguientes:<\/strong><\/p>\n

\u2460Utilizando la combinaci\u00f3n m\u00e1s eficaz desgasificaci\u00f3n y refinado<\/a> y el m\u00e9todo de filtrado mediante filtro de fundici\u00f3n de aluminio fundido para eliminar escorias y gases.
\n\u2461Utiliza un horno de gu\u00eda perfecto y tecnolog\u00eda de inyecci\u00f3n por transferencia, y lleva a cabo la fundici\u00f3n en el mismo nivel.
\n\u2462Realizar fundici\u00f3n a alta temperatura.
\n\u2463Evitar la contaminaci\u00f3n secundaria.<\/p>","protected":false},"excerpt":{"rendered":"

Molten Alu Casting Filter is an effective method to remove inclusions in molten aluminum. The ceramic foam filter molten metal filtration has been verified by…<\/p>","protected":false},"author":1,"featured_media":8923,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8922","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nMolten Alu Casting Filter Used to Reduce Oxide Film<\/title>\n<meta name=\"description\" content=\"Molten Alu Casting Filter is an effective method to remove inclusions in molten aluminum. 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