{"id":2897,"date":"2020-07-17T03:12:19","date_gmt":"2020-07-17T03:12:19","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=2897"},"modified":"2020-11-23T02:23:37","modified_gmt":"2020-11-23T02:23:37","slug":"pore-defects-in-aluminum-casting","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/pore-defects-in-aluminum-casting\/","title":{"rendered":"Defectos por poros en la fundici\u00f3n de aluminio"},"content":{"rendered":"

Las piezas fabricadas mediante fundici\u00f3n a presi\u00f3n de aleaciones de aluminio suelen desecharse debido a la presencia de poros. Existen numerosas causas que explican la aparici\u00f3n de defectos por poros en la fundici\u00f3n de aluminio. A la hora de resolver este problema de calidad del producto, a menudo resulta imposible saber por d\u00f3nde empezar. En la producci\u00f3n de fundici\u00f3n de aleaciones de aluminio, los defectos por poros son muy comunes y constituyen uno de los que causan p\u00e9rdidas relativamente importantes a las fundiciones de aleaciones de aluminio. Los poros se deben principalmente a la presencia de gas en el aluminio fundido. C\u00f3mo adoptar medidas de forma r\u00e1pida y correcta para reducir la tasa de desechos causada por los poros es una cuesti\u00f3n que preocupa a los fabricantes de fundici\u00f3n a presi\u00f3n de aleaciones de aluminio.<\/p>\n

En la producci\u00f3n de piezas de fundici\u00f3n a presi\u00f3n de aleaciones de aluminio, existen numerosas causas que pueden provocar la aparici\u00f3n de porosidad en el producto, y el problema debe resolverse identificando la causa y tratando el problema de ra\u00edz.<\/p>\n

\"Defectos<\/p>\n

Medidas para prevenir los defectos por porosidad en la fundici\u00f3n de aluminio<\/h2>\n

(1) Garantizar la calidad del desgasificado refinado en la fundici\u00f3n de aleaciones de aluminio. Elegir un buen agente refinador<\/a> y unidad de desgasificaci\u00f3n<\/a> para reducir el contenido de gas en el aluminio fundido y eliminar a tiempo la espuma y el \u00f3xido de la superficie del l\u00edquido, con el fin de evitar que el gas vuelva a introducirse en la matriz de fundici\u00f3n a presi\u00f3n.<\/p>\n

(2) Elige un buen agente desmoldeante. El agente desmoldeante elegido no debe generar gases durante la fundici\u00f3n a presi\u00f3n y debe ofrecer un buen rendimiento de desmoldeo.<\/p>\n

(3) Aseg\u00farese de que la salida de gases del molde no est\u00e9 obstruida, de que la salida sea fluida y de que el gas del molde se expulse por completo; en particular, el canal de salida debe estar libre de obstrucciones en el punto final de polimerizaci\u00f3n del aluminio fundido.<\/p>\n

(4) Ajusta los par\u00e1metros de fundici\u00f3n a presi\u00f3n; la velocidad de llenado no debe ser demasiado r\u00e1pida para evitar la formaci\u00f3n de gases. La temperatura de fundici\u00f3n tambi\u00e9n debe controlarse adecuadamente.<\/p>\n

(5) Se debe prestar atenci\u00f3n al uso de la extracci\u00f3n del n\u00facleo y la refrigeraci\u00f3n en el dise\u00f1o del producto y del molde, con el fin de minimizar las diferencias excesivas en el espesor de las paredes.<\/p>\n

(6) Las burbujas de aire que suelen aparecer en las piezas fijas deben corregirse desde la fase de dise\u00f1o y fabricaci\u00f3n del molde.<\/p>","protected":false},"excerpt":{"rendered":"

The workpieces produced by aluminum alloy die casting are often scrapped due to the existence of pores. There are many reasons for the occurrence of…<\/p>","protected":false},"author":1,"featured_media":5604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[1462,1463],"class_list":["post-2897","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-pore-defects-in-aluminum-casting","tag-refining-and-degassing"],"yoast_head":"\nPore Defects in Aluminum Casting | Refining and Degassing<\/title>\n<meta name=\"description\" content=\"How to take measures to reduce the scrap rate caused by the pore defects in aluminum casting. This is issues concerned by foundry.\" \/>\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\/pore-defects-in-aluminum-casting\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pore Defects in Aluminum Casting | Refining and Degassing\" \/>\n<meta property=\"og:description\" content=\"How to take measures to reduce the scrap rate caused by the pore defects in aluminum casting. 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