依据相似性原理采用1∶1比例搭建双辊薄带铸轧水模型试验平台,研究了不同铸速对铸轧熔池流动规律的影响,并建立低雷诺数的湍流数学模型,对熔池内流场和温度场分布规律进行分析。研究结果表明,由于液体的黏性力和轧辊的挤压作用,在熔池芯部区域会产生回流现象。芯部回流可在一定程度上搅动熔池并促使芯部温度降低,有利于促使温度场和溶质场均匀稳定。研究还表明,随着铸轧速度的增加,回流区位置下移且回流区面积增大,回流作用增强。但过大的铸轧速度反而会使液面波动加剧、Kiss点位置过低等问题产生,从而影响产品质量。 According to the principle of similarity, a 1: 1 ratio model was set up to build a two-roll thin strip casting and rolling water model test platform. The effect of different casting speeds on the flow rule of the molten pool was studied. A turbulence mathematical model with low Reynolds number was established, Field and temperature distribution of the law for analysis. The results show that due to the viscosity of the liquid and the squeezing action of the roll, a reflow occurs in the core region of the molten pool. The core reflow can agitate the molten pool to a certain extent and promote the core temperature to be lower, which is beneficial to promote uniform temperature and solute field stability. The research also shows that with the increase of casting speed, the position of recirculation zone moves down and the area of ​​recirculation zone increases, and the effect of recirculation increases. But too much casting speed but will lead to increased liquid level fluctuations, Kiss point location is too low and other issues, thus affecting product quality.