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针对冷连轧轧制过程的特点,变形程度是影响变形抗力的一个重要因素。建立了变形抗力的机理模型,并将理论模型与实际数据相结合。采用某钢厂生产的低碳钢08AlA稳定轧制时的现场实测数据,利用最小二乘逐次回归变形抗力模型中的各个参变量,并选用不同的方法来获得摩擦系数,选出与实际生产数据相吻合的最佳模型。将回归出的不同变形抗力模型,分别代入轧制力迭代公式进行计算,通过比较与实测轧制力的误差,选出最优的形抗力模型应用于实际生产中轧制力和前滑的预设定。
Aiming at the characteristics of cold rolling, the degree of deformation is an important factor that affects the deformation resistance. The mechanism model of deformation resistance is established, and the theoretical model is combined with the actual data. The field measurement data of the 08AlA mild steel produced by a steel mill was used to obtain the parameters of friction and the parameters of the actual production data were obtained by using the least square regression regression model. Match the best model. The regression model of different deformation resistance, respectively, into the iterative formula for calculating the rolling force, by comparing the measured and the rolling force error, select the best form of resistance model used in the actual production of rolling force and the pre-slip of the pre- set up.