Abstract：Deviation is an important factor affecting strip production and shape quality in hot strip rolling. During the rolling production process, finish rolling steel stacking accidents caused by head bending of intermediate slab in rough rolling occur frequently, which not only seriously harm production stability, but also cause serious waste of resources and economic losses of enterprises. In order to solve above problems, aiming at the influencing factors of asymmetric shape in rough rolling, combined with the measured rough rolling intermediate slab and process data, a precontrol model for the intermediate slab head was established, and the gain coefficient of the model was optimized by weighted least square method and model self-learning. Finally, precontrol model of finish rolling deviation based on roughing slab camber was established. After applying the calculated value of the model to field production, the head deviation of finishing strip is effectively reduced, which has good reference value and guiding significance.
司小明. 基于粗轧镰刀弯的精轧跑偏预控模型及应用[J]. 中国冶金, 2022, 32(12): 98-105.
SI Xiao-ming. Precontrol model and application of finish rolling deviation based on roughing slab camber[J]. China Metallurgy, 2022, 32(12): 98-105.
HE Hai-nan,SHAO Jian,WANG Xiao-chen,et al. Research and application of approximate rectangular section control technology in hot strip mills[J]. Journal of Iron and Steel Research International,2021,28(1):279.
2022, Vol. 32 
