Control Strategies of Asymmetric Strip Shape in Six-High Cold Rolling Mill

钢铁研究学报(英文版), 2011, 18(9): 27-32.

Control Strategies of Asymmetric Strip Shape in Six-High Cold Rolling Mill

^1, , ^2, , ^3,

1.Engineering Research Institute, University of Science and Technology Beijing, Beijing 100083, China

2.Engineering Research Institute, University of Science and Technology Beijing, Beijing 100083, China

3.Engineering Research Institute, University of Science and Technology Beijing, Beijing 100083, China

基金项目: National High Technology Research and Development Program of China(2009AA04Z163)

关键词：非对称弯曲 , 控制策略 , 冷轧机 , 板形 , 六辊 , 不对称 , 冷轧带钢 , 带钢生产

Control Strategies of Asymmetric Strip Shape in Six-High Cold Rolling Mill

Keywords： cold rolling , monitoring characteristics , asymmetric strip shape , control strategy ,

It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production. A roll system and strip coupled model of six-high cold rolling mill was established with finite element method to estimate the effect of intermediate roll shifting, tilting, symmetric and asymmetric bending technologies on strip profile. To reduce asymmetric defects of strip shape as much as possible, some control strategies were proposed, including tilting and asymmetric bending of intermediate roll and work roll. The combinations of these three control strategies can effectively eliminate asymmetric strip shape defects. Finally, the closed-loop control model of asymmetric flat- ness at the last stand was given, and the flatness control system with the function of asymmetric strip shape control was also designed for cold tandem mill.

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Control Strategies of Asymmetric Strip Shape in Six-High Cold Rolling Mill

Control Strategies of Asymmetric Strip Shape in Six-High Cold Rolling Mill

参考文献