Abstract：Within more than one year time after 2250 mm Hot Strip Mill of Qian’an Iron and Steel Company of Shougang Steel Corporation was commissioned in the end of 2006, strip shape control precision of was relatively lower and needs to be raised. One of the factors resulting to that problem is that the transfer bar usually had bad profile and large camber after its roughing rolling. And that kind of transfer bar will result strip shape defects of buckles, camber, wedge and tower coils after rolling work of finishing mill. For enhancing the control precision of strip shape, roll contour design and optimization works have been done. One kind of variable contact backup roll contour curve (VCR) with a six order of polynomials and negative crown contour were designed and applied respectively on back-up roll and work roll of roughing mill stand R1 and R2 instead of conventional flat backup roll. After the new backup roll contour technology and roll shape configuration mentioned above was applied on roughing mill, large improvement on crown, wedge and camber quality of transfer bar is obtained, and strip shape quality of hot rolled product has been raised by 10 percent.
王晓东 李飞 李本海 朱国森 金永春. 变接触支持辊辊形及辊形配置技术在宽带钢热连轧粗轧机组的应用[J]. 钢铁, 2010, 45(7): 47-47.
Wang Xiao-Dong Ben-hai LI Guo-Sen ZHU Yongchun Jin. Application of Variable Contact Backup Roll Contour and Configuration Technology on Roughing Mills of a Hot Wide Strip Mill. Iron and Steel, 2010, 45(7): 47-47.
2010, Vol. 45 
