Shape GrindingOriented Thermal Deformation Research of Work Roll of Hot Strip Rolling Mill
LI Xingdong1,SUN Dale2,YANG Lipo1,LIU Hongmin1
1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004,Hebei, China;2. Technology Center, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China
Abstract：For hot strip rolling mill the work rolls are ground at warm after rolling. The shape of ground cooled work rolls is difficult to reach the set value because of the remaining uneven thermal deformation.Due to difficulties of measurement,a reasonable physical measurement method was established, and the temperature distribution and thermal roll shape of work roll after rolling can be accurately measured. The complicated heat transfer boundary conditions of work roll were taken into account and the numerical simulation was made with finite difference analysis to determine the temperature field and thermal deformation of work rolls cooled in the air. The computed and measured results coincided satisfactorily. The thermal deformation of work roll at different time after rolling should be simulated and the shape of groumd roll can be set by the superposition of target roll shape before rolling and the thermal roll shape at grinding,in this way a basis and computation method for appropriate roll shape grinding are provided.
李兴东;孙大乐;杨利坡;刘宏民. 面向辊形磨削的热带钢连轧机工作辊热变形研究[J]. 钢铁, 2007, 42(4): 38-0.
LI Xingdong;SUN Dale;YANG Lipo;LIU Hongmin. Shape GrindingOriented Thermal Deformation Research of Work Roll of Hot Strip Rolling Mill. Iron and Steel, 2007, 42(4): 38-0.
2007, Vol. 42 
