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热连轧带钢生产过程中,在停轧、换辊后会出现带钢厚度精度低的情况,影响到带材的成材率.弹跳方程作为与出口厚度直接相关的物理模型,其精度直接影响到带钢头部的厚度精度.为提高模型精度,本文提出了新的轧辊磨损和热膨胀模型;并引入模型稳态误差量的概念,对弹跳方程进行优化改进.该弹跳方程优化算法给出了稳态误差普遍求解方案,模型在线使用效果良好,适于工业推广。
In the process of hot strip rolling, the accuracy of the strip thickness will be low after the rolling stop and the roll change, which will affect the yield of the strip.As the physical model which is directly related to the outlet thickness, the bounce equation has a direct impact on the accuracy To the thickness of the head of the strip.In order to improve the accuracy of the model, this paper presents a new model of roll wear and thermal expansion, and introduces the concept of model steady-state error to optimize and improve the bounce equation.The bounce equation optimization algorithm gives The steady-state error solution to the general situation, the model online with good results, suitable for industrial promotion.