本文根据周宜淼算式提供了两类计算空拔圆管壁厚的双周数表,列举了铜、铝圆管空拔的27个实例,计算结果的平均相对误差为1.40%。计算准确性较高,算式和双周数表的通用性较强,它与圆管材质基本无关,对模角和摩擦系数的变化均不敏感。因此非常便于推广应用。双周数表对空拔钢管也适用。 According to Zhou Yimiao’s formula, this paper provides two types of double-week counting table for calculating the wall thickness of air-drawn pipe. The examples of air-draw of copper and aluminum circular pipe are listed. The average relative error of the calculation results is 1.40%. Computation accuracy is high, the formula and the bi-weekly table is more versatile, it has nothing to do with the tube material, the mold angle and the friction coefficient changes are not sensitive. So very easy to promote the application. Double-week table on the drawing of steel also applies.