关于拉伸变形力计算理论公式,早已有所建立。本文是以球座标系应力平衡微分方程的方法,进行重导,结果与SACKS公式基本一致。在生产实际中,我们对铜线拉伸变形力进行一些实测工作,其结果与按(37)式计算所得之数据误差约在10%,证明此理论公式比其他公式尤为实用。 The theoretical formula for calculating the tensile deformation force has long been established. In this paper, the method of stress balance differential equations for ball coordinates is used for reconduction. The results are basically consistent with the SACKS formula. In the actual production, we performed some actual measurements on the tensile deformation force of the copper wire, and the result was about 10% lower than the data obtained by formula (37), which proved that this formula is more practical than other formulae.