1. National Engineering Research Center for Equipment and Technology of Cold Rolling Strip, Yanshan University, Qinhuangdao 066004, Hebei, China 2. Baosteel Heavy Plate Mill, Shanghai 201900, China）
Abstract：According to the real condition of the rolling force deviation of heavy plate mill in a strip factory, the effect of the stiffness differences at the both sides of the rolling mill on the rolling force deviation was researched. The stand overall stiffness model was established when there was residual oxide scale on the stepped mats during adjusting backup roll standard height,Then based on model alternate method, the rolling mill FEM model was established. Furthermore, the changing deflection of roll, exit thickness variation, pressure between rolls variation and the rolling force deviation at the both sides of the rolling mill was calculated through the FEM simulation. The results showed that when the thickness of the oxide scale was 5mm and the residual area was 26.66%, 36.79% and 46.92%, respectively, oxide scale equivalent stiffness was varying from 605kN/mm to 674kN/mm. And when there was no stiffness difference between the up and down of the rolling mill, the rolling force deviation at the both sides of the mill rolling reached the minimum value of 5 tons. Moreover, when the largest oxide scale area was attained, the rolling force deviation at the both sides of the rolling mill achieved the maximum value of 30 tons.
纪志强 刘宏民 孙建亮 马晓宝 谷尚武 张志忠. 残余氧化铁皮对机座刚度及轧制力偏差分析[J]. 中国冶金, 2016, 26(01): 63-69.
JI Zhi- qiang,LIU Hong- min,SUN Jian- liang,MA Xiao- bao,GU Shang- wu,ZHANG Zhi- zhong. Analysis on the effect of residual oxide scale on the base frame stiffness and rolling force deviation. China Metallurgy, 2016, 26(01): 63-69.
2016, Vol. 26 
