Modeling effect of cooling conditions on solidification process during thermal cycle of rollers in twin-roll strip casting
Chun-feng Bai1,2, Bo Wang1,2, Jie Ma3, Jie-yu Zhang1,2, Wan-ping Pan1,2
1 State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, China 2 School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China 3 Anhui Jianzhu University, Hefei 230601, Anhui, China
Abstract：In the twin-roll strip casting process, molten steel solidifies by losing heat through its interface with the casting rollers. The heat extraction along this interface has an effect on the quality of the strips and should be affected by coating, rolls’ material, and cooling water flow rate. It is necessary to understand the effect of these casting parameters on the solidification structure of twin-roll strip casting. A three-dimensional computational domain is set up to simulate the solidification process of molten steel and heat exchange between steel strip/air, coating, rolls, and cooling water in the channel of roll sleeves. The effect of the cooling water intensity and flow intensity of molten steel in the pool on the solidification structures is studied during the thermal cycle of rolls in the twin-roll strip casting. These predicted results are helpful to optimize casting parameters and improve the strip quality in the twin-roll strip casting process.
Chun-feng Bai,Bo Wang,Jie Ma, et al. Modeling effect of cooling conditions on solidification process during thermal cycle of rollers in twin-roll strip casting[J]. Journal of Iron and Steel Research International, 2023, 30(1): 64-73.
2023, Vol. 30 
