拉坯速度对结晶器内钢液流动和温度分布的影响  

Effect of Billet Withdrawal Speed on Molten Steel Flow and Temperature Distribution in Crystallizer

作　　者：张胤[1] 樊俊飞[2] 张立[2] 方园[2] 张捷宇[1] 贺友多 

机构地区：[1]内蒙古科技大学稀土学院,内蒙古包头014010 [2]宝山钢铁股份有限公司,上海201900

出　　处：《过程工程学报》2009年第S1期317-320,共4页The Chinese Journal of Process Engineering

摘　　要：针对板坯连铸过程,建立了钢液流动、传热、凝固的三维耦合数值计算程序,计算分析了拉坯速度对结晶器内钢液的流动、凝固特征的影响.计算结果表明,拉坯速度对流动的影响主要表现在宏观速度的大小上,不会影响流动的形态.但对传热和凝固过程有重要影响,直接影响到凝固终点的位置.凝固终点的长度与拉坯速度成正比关系.3D coupling numerical procedure was built for the calculation of molten steel flow, heat transfer and solidification in the process of slab continuous casting. The effect of billet withdrawal speed on molten steel flow and temperature distribution in crystallizer was analyzed. The results showed that the influence of billet withdrawal speed on flow mainly in macro-speed, and not the form of flow. However, billet withdrawal speed influenced the process of heat transfer and solidification remarkably and the ending point of solidification directly. The ending point of solidification had proportional relationship with billet withdrawal speed.

关 键 词：拉坯速度 结晶器 钢液流动 凝固 数值模拟 

分 类 号：TF777.2[冶金工程—钢铁冶金]