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针对连续退火炉实际生产过程中的跑偏问题,运用ABAQUS有限元软件建立炉辊--带钢动态仿真模型,定量计算了连续退火炉内双锥度辊辊形参数对带钢跑偏的影响,并分析了带钢的横向压应力以及产生的瓢曲变形.计算结果显示双锥度辊辊形对炉内带钢跑偏有明显的抑制作用,且随着锥度段总辊径变化量、辊径变化量比值和张力的增加,以及平直段长度的减少,带钢的跑偏量逐渐减少,最大横向压应力逐渐增大,使带钢发生瓢曲变形的概率增加.根据以上计算结果,建立带钢跑偏量的计算模型,并结合瓢曲变形理论,为进一步对加热段双锥度炉辊辊形和张力设定的优化提供了依据.
Aiming at the deviation of the continuous annealing furnace from the actual production process, the dynamic simulation model of the roller-strip steel was established by using the ABAQUS finite element software to quantitatively calculate the influence of the double- And the lateral compressive stress of the strip and the buckling deformation of the strip are analyzed.The results show that the roll shape of the double-taper roll significantly inhibits the deviation of the strip in the furnace, and with the change of the total roll diameter of the taper section, The ratio of the amount of change and the increase of the tension and the decrease of the length of the straight section gradually decrease the deviation of the strip and the maximum transverse compressive stress increases gradually and the probability of the strip buckling deformation increases.According to the above calculation results, The calculation model of strip deviation and strip bending deformation theory are provided for further optimization of roll profile and tension setting of double-taper furnace roll in heating section.