Rolling Force Prediction of Hot Strip based on Combined Friction

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Li, Xingdong^1

College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei

066004, China^1

关键词: Friction stress;    Hot strip mills;    Hot strips;    Hot-rolled strip;    Rolling force;    Rolling force prediction;    Work rolls;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012053/pdf
DOI  :  10.1088/1757-899X/269/1/012053

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Rolling force of hot strip was predicted in which slipping and sticking friction were adopted on the contact arc between work roll and hot strip. Karman equation was applied to slipping friction and Orowan equation was applied to sticking friction. Predicted rolling forces of hot strip agreed with measured ones from a seven-stand hot strip mill. Friction stress distributions of one classical hot rolled strip on contact arc were analysed at each pass. From pass 1 to 3, sticking friction dominated while from pass 4 to 7 slipping and sticking friction coexisted. It proved that the applicability and superiority of rolling force model based on combined friction for rolling force prediction of hot strip.