Lever arm coefficient model of 5 000 mm single-stand heavy plate mill
JIAO Zhi-jie1, CAI Yuan-liang1, WANG Long-xin1, WANG Zhi-qiang1, SUN Xu-dong2
1. The State Key Laboratory of Rolling Automation, Northeastern University, Shenyang 110819, Liaoning, China; 2. The Heavy Plate Plant, NISCO, Nanjing 210035, Jiangsu, China
Abstract：Rolling torque is one of the most important process parameters in the plate rolling process. The accuracy of the lever arm coefficient model directly affects the calculation accuracy of rolling torque. The reverse calculation model of the lever arm coefficient is derived,and the lever arm coefficient is obtained based on the actual rolling data. The influence of geometric conditions of the rolling deformation zone on the lever arm coefficient was studied. The deformation zone geometric coefficient and reduction ratio were determined as the critical parameters of the lever arm coefficient. Through the regression analysis of the actual data,the best model form and the model parameters are obtained. The empirical model,the now used model,and the improved model of lever arm coefficient are used to calculate the rolling torque for one 5 000 mm heavy plate mill,and the accuracies of the models are compared with the actual data. The maximum error of the rolling torque calculated with the improved lever arm coefficient model is less than 10%, and the average error is within 5%. The calculation accuracy is much higher than other models.
矫志杰, 蔡沅良, 王龙鑫, 王志强, 孙旭东. 5 000 mm单机架宽厚板轧机力臂系数模型[J]. 钢铁, 2021, 56(7): 101-106.
JIAO Zhi-jie, CAI Yuan-liang, WANG Long-xin, WANG Zhi-qiang, SUN Xu-dong. Lever arm coefficient model of 5 000 mm single-stand heavy plate mill[J]. Iron and Steel, 2021, 56(7): 101-106.
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2021, Vol. 56 
