采用修正的影响函数法建立了UCM轧机辊系弹性变形的计算模型,分析了带钢宽度、轧辊直径以及弯辊力大小等因素对轧机处于无穷大横向刚度时中间辊横移位置δm的影响规律,结果表明δm值随带钢宽度和弯辊力的增大而增大,随工作辊直径的增大而减小。通过工业实验验证了在实际生产中可以通过设定中间辊横移位置尽量接近δm以获得高的横刚度,从而提高轧机板形控制的稳定性,改善带材的板形质量。 The modified influence function method was used to establish the calculation model of UCM mill roll elastic deformation. The influences of strip width, roll diameter and roll bending force on the transverse displacement δm of the intermediate roll when the mill was in infinite transverse rigidity were analyzed. The results show that δm value increases with the increase of strip width and bending force, and decreases with the increase of work roll diameter. Through industrial experiments, it is verified that in the actual production, the transverse displacement of the middle roller can be set as close to δm as possible to obtain high transverse rigidity so as to improve the stability of the strip shape control and improve the strip shape quality.