The temperature of the hot steel strip between roughing and finishing mills is important parameter to manufacture the high-quality products. It has great influences on mechanical properties and manufacturing costs of the steel products. The hot steel strip between roughing and finishing mills has considerable heat loss and temperature drop due to the exposure to cold environment and air. The thermal shield is required to reduce the heat loss and temperature drop of the hot steel strip. Thus, the model prediction for the temperature of the hot steel strip is developed to design the thermal shield and identify its effects. The experiment for the hot steel strip sample is performed to validate the model prediction. The results of the experiment and model prediction have the good agreement for different emissivity and temperature of the thermal shields. In addition, the temperature variation and distribution of the hot steel strip between roughing and finishing mills is predicted for different geometries of the thermal shields. The thermal shield with low emissivity and high temperature reduces the temperature drop of the hot steel strip for practical purposes.

粗轧机和精轧机之间的热轧钢带温度是制造高质量产品的重要参数。它对钢材的机械性能和制造成本有很大影响。粗轧和精轧机之间的热钢带由于暴露于寒冷的环境和空气中而具有相当大的热损失和温度下降。需要使用隔热罩来减少热轧钢带的热量损失和温度下降。因此，开发了对热轧钢带温度的模型预测，以设计隔热板并确定其影响。进行了热轧钢带样品的实验，以验证模型预测。实验结果和模型预测结果对不同热屏蔽层的发射率和温度具有良好的一致性。另外，针对热屏蔽的不同几何形状，预测了粗轧机和精轧机之间热轧钢带的温度变化和分布。具有低发射率和高温的隔热罩可降低热轧钢带的温度降，以用于实际用途。