极薄带在轧制及平整过程中,工作辊的弹性压扁对轧制压力的分布有很大影响,传统的轧制力模型已经不再适用。为了在极薄带板形板厚控制过程中得到准确的轧制力,Fleck提出了新的轧辊压扁模型。针对Fleck模型进行试验研究,同时进行有限元模拟分析。试验过程中使用合金工具钢轧辊,轧制不同厚度的轧件,通过显微镜测量变形区各部位的厚度,得到变形区轧辊的近似轮廓形状。试验与有限元模拟结果表明,随着轧件厚度的减小,变形区出现了明显的中性区,但是很难出现Fleck模型中提到的弹性卸载区,因此计算极薄带轧制力时可以忽略中性区内的弹性卸载区以简化轧制力模型。 In the process of rolling and flattening, the elastic flattening of the work roll has a great influence on the distribution of the rolling pressure. The traditional rolling force model is no longer applicable. In order to obtain accurate rolling force during strip thickness control, Fleck proposed a new rolling flattening model. Fleck model for experimental study, at the same time finite element simulation analysis. During the test, alloy tool steels were used to roll different rolling thicknesses. Microscope was used to measure the thickness of each part of the deformed zone to get the approximate contour shape of the deformed roll. Experimental and finite element simulation results show that with the decrease of the thickness of the rolling stock, a clear neutral zone appears in the deformation zone, but it is difficult to find the elastic unloading zone mentioned in the Fleck model. Therefore, The elastic unloading zone in the neutral zone can be omitted to simplify the rolling force model.