摘要
为了得到较高的平坦度,在板带不发生曲屈失稳的前提下,通过由精轧入口机架向出口机架以及出口机架向入口机架递推得到合理凸度控制范围。通过优化函数得出各个机架出口的凸度,在合理的凸度控制范围内对优化函数的凸度分配结果进行修正,得出基于平坦度优先的凸度分配模型。研究结果表明:现场实验成品凸度与平坦度目标值分别为50μm和0μm/m,模型计算凸度与平坦度分别为47.2μm和0μm/m,成品头部实际凸度与平坦度平均值分别为48.7μm和43μm/m;该策略在保证精轧出口平坦度的前提下,能保证凸度与目标凸度偏差最小。
In order to get a higher flatness,on the premise of no buckling,the reasonable control range of crown was obtained by recursion from finishing mill entrance stand to exit stand and from exit stand to entrance stand.Through the optimization function,the crown of each stand exit was obtained,and the crown distribution result of the optimization function was modified within the reasonable range of crown.The crown distribution model based on the priority flatness was obtained.The results show that the target values of crown and flatness are 50μm and 0μm/m,the crown and flatness calculated by the model are 47.2μm and 0μm/m,and the average value of actual crown and flatness of finished product head are 48.7μm and 43μm/m,respectively.The strategy ensures the minimum deviation between crown and target crown on the premise of ensuring the finish rolling exit flatness.
作者
刘东冶
何安瑞
邵健
陈超超
LIU Dongye;HE Anrui;SHAO Jian;CHEN Chaochao(National Engineering Research Center for Advanced Rolling,University of Science&Technology Beijing,Beijing 100083,China;Design and Research Institute Co.Ltd.,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第11期3253-3259,共7页
Journal of Central South University:Science and Technology
基金
国家自然科学基金资助项目(51674028)
广西创新驱动发展专项资金资助项目(桂科AA17202008)。
关键词
凸度
平坦度
热轧
板形
crown
flatness
hot rolling
buckling
