【作者】 周冠禹； 何安瑞； 刘超；

【Author】 ZHOU Guanyu;HE Anrui;LIU Chao;National Engineering Technology Research Center of Flat Rolling Equipment,University of Science and Technology Beijing;

【机构】 北京科技大学国家板带生产先进装备工程技术研究中心；

【摘要】 在20辊轧机冷轧过程中,板带容易出现高次浪形问题,严重影响了生产效率和轧制稳定性。为了探究高次浪形产生机理,本文建立了可用于模拟实验的辊系-轧件一体化三维有限元模型。仿真发现,一中间辊锥辊会导致工作辊轴线出现高次挠曲,进而引发钛带出现纵向延伸凸峰,凸峰区域与现场高次浪形位置一致。同时,还发现随着轧制力的增加,浪形形式会沿着高次浪形—复合浪形(高次浪形与边浪)—边浪路径进行变化。更多还原

【Abstract】 During the cold rolling process using a 20-high mill,the strip is prone to high-order waves,which seriously affect production efficiency and rolling stability.To explore the mechanism of high-order waves,an integrated finite element model of roll system and strip that can be used for simulation experiments has been established in this study.The simulations show that the cone roll can cause a high-order bending of the work roll axis,which in turn leads to longitudinal extension peaks on the titanium strip,and the convex peak area is consistent with the on-site high-order wave position.At the same time,the simulations show that with the increase of rolling force,the wave form will vary along the path of high-order waves-composite waves(high order wave form and edge wave)-edge waves.更多还原