| 板坯连铸结晶器非稳态流场的模拟研究 |
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| 引用本文： | 王永胜,王新华,王万军.板坯连铸结晶器非稳态流场的模拟研究[J].甘肃冶金,2009,31(6):1-3,76. |
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| 作者姓名： | 王永胜 王新华 王万军 |
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| 作者单位： | 1. 酒钢集团有限责任公司,甘肃,嘉峪关,735100
2. 北京科技大学冶金与生态工程学院,北京,100083 |
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| 摘 要： | 本文运用数值模拟研究方法,研究高拉速厚板坯连铸非稳态结晶器流动特性,研究浸入式水口堵塞、水口不对中对结晶器流场、液面流速和对初生坯壳的影响。高拉速厚板坯连铸,铸坯质量下降,90%表面缺陷集中在铸坯边角区域,最严重的缺陷是铸坯中心和角部纵裂。非稳态工况对结晶器的流场影响因素更为显著,研究发现水口堵塞程度、水口出口流速、流量分配比是结晶器液面流速不对称、液面波动的主要影响因素,水口不对中是钢液流股对结晶器初生坯壳局部热冲击的主要因素,因此高拉速连铸应尽量避免非稳态工况操作,确保产品质量和效率的双赢。
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| 关 键 词： | 高拉速 非稳态连铸 结晶器 液面波动 |
Research of Mathematical Models to the Mold for the Slab Unsteady Continuous Casting |
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| WANG Yong-sheng,WANG Xin-hua,WANG Wan-jun.Research of Mathematical Models to the Mold for the Slab Unsteady Continuous Casting[J].Gansu Metallurgy,2009,31(6):1-3,76. |
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| Authors: | WANG Yong-sheng WANG Xin-hua WANG Wan-jun |
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| Affiliation: | WANG Yong-sheng1,WANG Xin-hua 2,WANG Wan-jun2(1.Jiuquan Iron & Steel Group Ltd.,Jiayuguan 735100,China,2.School of Metallurgical and Ecological Engineering of University of Science and Technology,Beijing 100083,China) |
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| Abstract: | Mathematical model represent a powerful tool for gaining insight into the production sequence of the steel.Through mathematical model in fluid flow of mold in high speed slab unsteady continuous casting,The tuck of the submerged entry nozzle are main fact effects to the velocities values in the mold,In high speed slab continuous casting,The effect degree for technics parameter to liquidity of steel in mold is large than in low-speed slab continuous casting.with the speed of slab continuous casting become hi... |
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| Keywords: | high-speed unsteady continuous casting mold the fluctuating of level |
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