{"id":5942,"date":"2020-10-24T13:42:33","date_gmt":"2020-10-24T13:42:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5942"},"modified":"2020-10-24T13:42:33","modified_gmt":"2020-10-24T13:42:33","slug":"headbox-temperature","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/headbox-temperature\/","title":{"rendered":"Temperatura de la caja de entrada"},"content":{"rendered":"<p>En condiciones estables, cuando la temperatura de colada y laminaci\u00f3n es constante, la temperatura de la caja de entrada tambi\u00e9n es constante. Dado que la temperatura de la masa fundida en la caja delantera es f\u00e1cil de medir, y la temperatura de la masa fundida en la <a href=\"http:\/\/www.alalloycasting.com\/es\/alumina-fiber-flow-box\/\">compartimento delantero<\/a> durante la colada y la laminaci\u00f3n normales es muy peque\u00f1a. Se trata de la temperatura de colada. Durante el proceso de colada y laminaci\u00f3n, se suelen utilizar termopares para controlar la temperatura del metal fundido en la caja delantera y, de este modo, supervisar la temperatura de colada, de tal forma que la temperatura del metal fundido en la zona de colada-laminaci\u00f3n se mantenga estable y la velocidad de solidificaci\u00f3n sea constante durante todo el proceso de colada y laminaci\u00f3n.<\/p>\n<p>La temperatura de colada y laminaci\u00f3n debe mantenerse estable durante la selecci\u00f3n de dicha temperatura. Se debe tener plenamente en cuenta el flujo de la masa fundida desde el horno est\u00e1tico a trav\u00e9s del canal de temperatura de la caja de entrada y el dispositivo de refinado hasta la caja frontal lambda, y posteriormente a trav\u00e9s del canal transversal (boquilla de distribuci\u00f3n y alimentaci\u00f3n) hasta llegar a la zona de colada. La p\u00e9rdida de calor en todo el proceso de la zona de laminaci\u00f3n. Especialmente al dise\u00f1ar una nueva l\u00ednea de producci\u00f3n de colada y laminaci\u00f3n, se debe tener en cuenta la longitud y la ca\u00edda de temperatura desde la abertura del horno est\u00e1tico hasta la caja frontal, y la p\u00e9rdida de temperatura del metal durante su flujo hacia la caja frontal debe ser m\u00ednima. Adem\u00e1s, tambi\u00e9n hay que tener en cuenta el rendimiento del aislamiento t\u00e9rmico del sistema de canaletas, el clima y la temperatura ambiente del taller.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5954\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/10\/Headbox-Temperature.jpg\" alt=\"Temperatura de la caja de entrada\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Headbox-Temperature.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Headbox-Temperature-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><br \/>\nComo todos sabemos, cuando la temperatura del material fundido en el horno es demasiado alta o se produce un sobrecalentamiento local, no solo aumenta el consumo de energ\u00eda, sino que tambi\u00e9n provoca que los granos cristalinos se vuelvan gruesos. La experiencia ha demostrado que, una vez que la temperatura del metal fundido en el horno es demasiado alta o se produce un sobrecalentamiento parcial, aunque se reduzca la temperatura hasta niveles normales, no es posible eliminar el efecto que la temperatura excesiva ha tenido sobre el agrandamiento de los granos. Por lo tanto, controlar la temperatura del metal fundido en el horno de fundici\u00f3n y en el horno de reposo permite tambi\u00e9n controlar la temperatura de la caja de entrada, lo cual es muy importante para estabilizar el proceso de fundici\u00f3n-laminaci\u00f3n y mejorar la calidad de la banda fundida y laminada.<\/p>\n<p>Una temperatura de colada y laminaci\u00f3n demasiado elevada es tambi\u00e9n la causa principal del aumento del contenido de gas y de la aparici\u00f3n de grietas. Una temperatura de colada y laminaci\u00f3n demasiado elevada hace que la banda no se forme correctamente o reduce su calidad; si la temperatura de colada es demasiado baja, la masa fundida se solidificar\u00e1 en la cavidad de la boquilla. La experiencia ha demostrado que, siempre que se cumplan los requisitos del proceso de fundici\u00f3n-laminaci\u00f3n, es preferible una temperatura de fundici\u00f3n-laminaci\u00f3n de entre 685 y 710 \u2103. Una temperatura baja de fundici\u00f3n-laminaci\u00f3n no solo permite refinar los granos cristalinos de la banda fundida y laminada, sino que tambi\u00e9n permite alcanzar una mayor velocidad de fundici\u00f3n, lo que aumenta la productividad.<\/p>","protected":false},"excerpt":{"rendered":"<p>Under stable conditions, when the casting-rolling temperature is constant, the headbox temperature is also constant. Because the melt temperature in the front box is easy&hellip;<\/p>","protected":false},"author":1,"featured_media":5954,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[417,405],"class_list":["post-5942","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-foundry-filters","tag-silicon-carbide-foam-filter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Headbox Temperature in Aluminum Casting-Rolling Process<\/title>\n<meta name=\"description\" content=\"When the casting-rolling temperature is constant, the headbox temperature is also constant. 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