The reasonable widths of backupstrip are experimented with the strength factor of the welded seam for a particular kind of PVC/PES.
PES背贴焊接缝合试验，得到了应力-应变曲线、背贴条宽度、焊接缝合强度系数；
2
The results we obtained prove that the power function curve can not only improve the service life of the backup roll but also benefit the profile and shape control of hot rolled strip.
经试验验证，采用幂函数的辊形优化曲线可提高支撑辊使用寿命，并有利于板凸度和板形控制。
3
This paper simply analyses the work of the exisiting backup rolls, and brings forward a project to optimize the backup rolls on 4 stand tandem cold strip mill.