Research on Work Roll Thermal Crown in Cold Rolling Mill
The factors which have influence on the work roll thermal crown in cold strip rolling are discussed.The heat transferring in three directions (radial、axis and circumference) were considered for calculating the work roll thermal deformation.Therefore,it is a three dimensions unstable system for the work roll temperature calculation.The plastic deformation work and friction heat are calculated by the divided element and digital integration method.The simplified calculation model is built for the heat transferring along work roll.There are four zones for work roll heat transferring: roll gap zone、air cooling zone、emulsion zone、rolls contact zone.The heat transferring between the zones is decided by the temperature difference.The inter temperature field and thermal deformation of work roll can be calculated by two-dimension finite difference method.The work roll temperature and thermal crown of actual application cold rolling mill are analyzed by the model.By the comparison between calculated values and measured values,the work roll thermal calculation model can meet the accuracy requirement of on-line control.
Cold Rolling Mill Thermal Crown Plastic Deformation Work Friction Heat
Song Lei Shen Mingang Chen Xuebo Wang Junsheng
University of Science and Technology LiaoNing,Anshan 114000,P.R.China AnSteel Technology Centre.,Anshan 114021,P.R.China
国际会议
沈阳
英文
1125-1130
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）