Study on Shifting Mathematical Model of Edge Drop Control in Tandem Cold Rolling Mill
CAO Jianguo1,MAO Na1,ZHANG Jie1,YIN Xiaoqing2,ZENG Wei2
1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China； 2. Cold Rolling Mill,Wuhan Iron and Steel (Group) Corp, Wuhan 430083, Hubei, China
Abstract：Aiming at the edge drop control problems on tandem cold rolling mills, an explicit dynamic finite element method was adopted to build a combination simulation model for roll stacks and strip. The effect of thickness and deformation resistance of strip as main factors on edge drop was analyzed. The area method of edge drop equivalent was put forward to build the shifting mathematical model of edge drop control based on the mechanism of edge drop control and characteristics of selfdeveloped EDW (edge drop control work rolls).The parameters of model were determined by simulation and industrial experiment. The model has been applied to the 1700 4Hi tandem cold rolling mill equipped with developed EDW and matched VCR (varying contact backup rolls). The remarkable results of application indicated that the proportion of electric steel strips with an average edge drop less than 7 μm was 98.22% and the proportion of the transverse thickness deviation along the strip of the same strip less than 10 μm was 9725%.
曹建国;毛娜;张杰;尹晓青;曾伟. 冷连轧机边降控制窜辊数学模型研究[J]. 钢铁, 2008, 43(8): 57-0.
CAO Jianguo;MAO Na;ZHANG Jie;YIN Xiaoqing;ZENG Wei. Study on Shifting Mathematical Model of Edge Drop Control in Tandem Cold Rolling Mill. Iron and Steel, 2008, 43(8): 57-0.
2008, Vol. 43 
