一、前言 在目前二辊斜轧穿孔机辊型设计尚无科学依据的情况下,本文从图解解析法入手,研究和分析了在交叉轴条件下管坯变形情况的空间几何关系,找出其内在规律,并据此提出了合理的辊型设计方法和精确的计算公式。这对于充分挖掘现有设备的潜力,提高产量(加大交叉角)和质量(改善接触情况)都具有明显的意义。 I. Preface In the current situation that there is no scientific basis for roller design of two-roller cross-piercing piercing mill, this paper starts from the graphic analytic method, and studies and analyzes the geometric relationship of the deformation of the blank tube under cross-axis condition to find out its According to this, a reasonable design method of rollers and an accurate calculation formula are put forward. This has obvious implications for fully exploiting the potential of existing equipment, increasing production (increasing cross angles) and quality (improving access).