{"id":10248,"date":"2021-09-10T06:08:52","date_gmt":"2021-09-10T06:08:52","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10248"},"modified":"2022-03-09T02:44:06","modified_gmt":"2022-03-09T02:44:06","slug":"aluminum-caster-tip","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-caster-tip\/","title":{"rendered":"Ponta do rod\u00edzio de alum\u00ednio"},"content":{"rendered":"

A ponta do rolo de fundi\u00e7\u00e3o de alum\u00ednio exerce grande influ\u00eancia na qualidade da tira fundida e laminada, especialmente na uniformidade da distribui\u00e7\u00e3o da velocidade e da temperatura do alum\u00ednio fundido.<\/p>\n

A placa de alum\u00ednio no processo de fundi\u00e7\u00e3o pode apresentar os seguintes defeitos: espessura excessiva, formato inadequado da placa, zona quente, orif\u00edcios, trincas, segrega\u00e7\u00e3o de gr\u00e3os grossos e outros defeitos. Alguns desses defeitos s\u00e3o causados pela distribui\u00e7\u00e3o irregular da velocidade e da temperatura do alum\u00ednio fundido na cavidade do bico.<\/p>\n

A qualidade da tira laminada por fundi\u00e7\u00e3o n\u00e3o \u00e9 boa, sendo classificada como insatisfat\u00f3ria na dire\u00e7\u00e3o horizontal e fora dos padr\u00f5es. A principal raz\u00e3o \u00e9 que o alum\u00ednio fundido, na sa\u00edda do bico de fundi\u00e7\u00e3o, apresenta velocidade irregular ao longo da largura da bocal de fundi\u00e7\u00e3o<\/a>, o que causa a distribui\u00e7\u00e3o desigual do material fundido ao longo da dire\u00e7\u00e3o axial do rolo de fundi\u00e7\u00e3o. Por exemplo, se a velocidade de fluxo no meio da sa\u00edda do bocal de fundi\u00e7\u00e3o for muito alta, o meio do rolo de fundi\u00e7\u00e3o se expandir\u00e1 localmente, resultando em uma convexidade excessiva do rolo de fundi\u00e7\u00e3o.<\/p>\n

\"Ponta<\/p>\n

A \u201cfaixa quente\u201d \u00e9 um defeito na zona de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o do alum\u00ednio fundido, que n\u00e3o se solidifica completamente em algumas \u00e1reas e \u00e9 levado para fora pelo rolo de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o. Os orif\u00edcios s\u00e3o gerados na metade superior da se\u00e7\u00e3o transversal do lingote fundido e se estendem ao longo da dire\u00e7\u00e3o longitudinal do lingote, formando um canal branco na superf\u00edcie do lingote onde os orif\u00edcios s\u00e3o gerados. Parte desse canal branco permanece em uma posi\u00e7\u00e3o fixa e cont\u00ednua. Outros se deslocam lateralmente na superf\u00edcie da tira e, \u00e0s vezes, dois canais brancos que se movem lateralmente se fundem em um \u00fanico, e um buraco aparece no ponto de encontro. Existem muitas raz\u00f5es para a ocorr\u00eancia de pontos quentes\/buracos, mas a distribui\u00e7\u00e3o lateral da temperatura do material fundido na sa\u00edda do bico \u00e9 irregular, e a n\u00e3o solidifica\u00e7\u00e3o parcial do lingote fundido tamb\u00e9m \u00e9 uma das causas desses defeitos.<\/p>\n

Como todos sabemos, na ind\u00fastria de processamento de folha de alum\u00ednio, o processamento de folhas ultrafinas \u00e9 dif\u00edcil. No entanto, \u00e9 ainda mais dif\u00edcil produzir folhas ultrafinas a partir de tarugos laminados por fundi\u00e7\u00e3o, o que exige um padr\u00e3o de qualidade interno muito rigoroso desses tarugos. A estrutura do alum\u00ednio bocal com ponta de rolamento<\/a> afeta diretamente a uniformidade da distribui\u00e7\u00e3o transversal da massa da placa fundida, de modo que defeitos locais de qualidade na placa fundida e na tira tendem a ocorrer durante o processo de produ\u00e7\u00e3o, o que afeta o desempenho do processamento posterior da folha de alum\u00ednio e pode at\u00e9 mesmo levar diretamente ao descarte do produto.<\/p>","protected":false},"excerpt":{"rendered":"

The aluminum caster tip has a great influence on the quality of the cast-rolled strip, especially the uniformity of the velocity distribution and temperature distribution…<\/p>","protected":false},"author":1,"featured_media":10249,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminum Caster Tip in Melt Casting and Rolling Zone<\/title>\n<meta name=\"description\" content=\"The structure of the aluminum caster tip nozzle directly affects the uniformity of the transverse mass distribution of the cast plate.\" \/>\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\/pt\/aluminum-caster-tip\/\" \/>\n<meta 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