对于冷轧带钢一般采用斯通公式计算轧制力,为方便计算,提高精度,本文采用牛顿迭代法计算轧辊弹性压扁后的接触弧长,并编制了电算程序。文中还将常用的十一个钢种及四种有色金属的变形阻力曲线运用回归方法,得出的回归方程也编于程序之中。电算结果与实测值作了比较,其误差在工程允许的范围内。 For the cold-rolled strip steel, the rolling force is generally calculated by using Stone’s formula. In order to facilitate the calculation and improve the precision, the contact arc length after the elastic flattening of the roll is calculated by Newton’s iteration method and the computer program is compiled. In this paper, we also apply regression method to the deformation resistance curves of eleven steel types and four non-ferrous metals commonly used. The regression equation is also compiled in the program. Computation results and measured values ​​were compared, the error in the project allows the range.