热轧带钢立辊调宽短行程控制模拟研究与应用

Study and application of short stroke control in hot edge rolling

针对莱钢1500热连轧机组粗轧段立辊侧压调宽轧制的工艺特点,利用ANSYS/LS-DYNA建立了立辊-水平辊轧制的三维弹塑性有限元模型,研究了不同工况下的带钢轧后头尾端变形(失宽)规律,并据此建立了控制头尾端形状的短行程控制模型。通过比较可以看出,模型能够有效地减小头尾端失宽。这一成果已经应用于莱钢1500热连轧机宽度自动控制(AWC)系统中,并取得良好效果。

According to the working characteristics of edge rolling in the hot rolling at Laiwu Iron and Steel Co, a 3D FEM model for edge and horizontal rolling was established with ANSYS/LS-DYNA, which was applied to simulate the rolling procedures of several process conditions. And the model of Short Stroke Control （SSC） was gived to control the shapes of head and tail, by comparing, the new model is effective for the width reduction of head and tail. the model and the results of analog computation have been used to the AWC program at Laiwu Iron and Steel Co, and take the good effects.