| 拉坯速度对连铸结晶器中流型结构影响的水模拟研究 |
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| 引用本文： | 陈秀娟,袁子洲,李定.拉坯速度对连铸结晶器中流型结构影响的水模拟研究[J].兰州理工大学学报,2002,28(3):30-32. |
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| 作者姓名： | 陈秀娟 袁子洲 李定 |
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| 作者单位： | 甘肃工业大学,材料科学与工程学院,甘肃,兰州,730050 |
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| 摘 要： | 根据相似理论 ,研究了 3种拉坯速度下结晶器中的流型结构 ,分析了它们对板坯缺陷形成的影响 .当拉速较大时 ,结晶器熔池顶面形成紊流 ,易卷入保护渣、气体等 ,从而形成缺陷 ,影响板坯质量 .此外 ,水口浸入深度越深及水口出口倾角越大 ,回流区内夹杂物越不易上浮 .
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| 关 键 词： | 连铸 水模拟 结晶器 |
| 文章编号： | 1000-5889(2002)03-0030-03 |
| 修稿时间： | 2001年12月8日 |
Investigation of influence of casting speed on flow pattern in continuous casting mold by means of water modelling |
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| CHEN Xiu juan,YUAN Zi zhou,LI Ding.Investigation of influence of casting speed on flow pattern in continuous casting mold by means of water modelling[J].Journal of Lanzhou University of Technology,2002,28(3):30-32. |
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| Authors: | CHEN Xiu juan YUAN Zi zhou LI Ding |
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| Abstract: | According to the theory of similitude, the flow patterns in the mold of continuous slab casting are investigated with three casting speeds, and their influence on the formation of defects in the slab is analyzed. With the increase of casting speed, turbulence is formed at the top of the crystallizer so that the protective slags as well as the gases are easily drawn into the crystallizer, forming the defects and deteriorating the quality of the slab. Besides, the larger the nozzle immersion depth and the inclination of nozzle outlet, the more difficult for the inclusions within the backflowt float off. |
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| Keywords: | continuous casting water modelling crystallizer |
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