【摘要】 为提高冷连轧产线带钢同板差质量，并验证双锥度工作辊在不同工况下对带钢横向同板差的调控能力，以某厂六辊冷连轧轧机为仿真对象，采用ABAQUS弹塑性有限元软件，建立了带钢轧制过程的三维弹塑性仿真模型。通过大量不同工况下的仿真分析，对比在不同工作辊弯辊力、中间辊窜辊和来料凸度下，双锥度工作辊与普通平辊轧制的带钢横向同板差。结果表明，在典型工况下，双锥度工作辊相较于平辊工作辊，辊子与带钢间的接触应力峰值降低80MPa以上，显著改善带钢受到的轧制力分布；带钢边部抬升14.27μm,大幅降低了带钢的边部减薄现象，减少了其横向同板差，带钢横向同板差下降至6μm以下。本工作验证了双锥度工作辊对带钢横向同板差的优化能力，可为相关研究提供思路与指导。更多还原

【Abstract】 In order to improve the quality of same-board difference in cold rolling strip production lines, the regulatory capacity of double-cone work rolls on the same-board difference of strip steel under different operating conditions was verified. The ABAQUS plastic finite element software has been applied and a three-dimensional elastic-plastic simulation model of the strip steel rolling process was established based on a 6-roll cold rolling mill. Through extensive simulations under various operating conditions, the longitudinal same-board difference of strip steel rolled by double-taper work rolls and flat rolls was compared under different work roll crown forces, intermediate roll crown forces, intermediate roll slip, and incoming strip convexity. The results indicate that compared with flat rolls, double-taper work rolls can effectively reduce the peak contact stress between rolls and strip steel, optimize the distribution of rolling force on the strip steel, and decrease its longitudinal same-board difference. It presents a noticeable impact on raising the thickness at the edges of the strip steel.This work validates the ability of double-taper work roll to optimize the lateral variation of flatness in steel strip, while provides a reference and guidance for the related research as well.更多还原