Adaptive threading strategy based on rolling characteristics analysis in hot strip rolling

作     者：PENG Wen CHEN Shu-zong GONG Dian-yao LIU Zi-ying ZHANG Dian-hua 彭文;陈树宗;龚殿尧;刘子英;张殿华

作者机构：State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang 110819China Research Institute of TechnologyShougang GroupBeijing 100041China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2017年第24卷第7期

页      面：1560-1572页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Project(51504061)supported by the National Natural Science Foundation of China 

主　　题：hot strip rolling adaptive threading rolling characteristics analysis influence coefficients method simplex algorithm 

摘      要：In order to improve the threading stability and the head thickness precision in tandem hot rolling process, an adaptive threading strategy was proposed. The proposed strategy was realized by the rolling characteristics analysis, and factors which affect the rolling force and the final thickness were determined and analyzed based on the influence coefficients calculation process. An objective function consisting of the influenced factors was founded, and the disturbance quantity was obtained by minimizing the function with the Nelder-Mead simplex method, and the proposed adaptive threading strategy was realized based on the calculation results. The adaptive threading strategy has been applied to one 7-stand hot tandem mill successfully, actual statistics data show that the predicted rolling force prediction in the range of +/- 5.0% is improved to 97.8%, the head thickness precision in the range of +/- 35 mu m is improved to 98.5%, and the threading stability and the head thickness precision are enhanced to a high level.