滚压螺纹加工 采用钢筋滚丝机（型号：GZL-32、GYZL-40、GSJ-40、HGS40等）直接滚压螺纹。此法螺纹加工简单，设备投入少；但螺纹精度差，由于钢筋粗细不均导致螺纹直径差异，施工受影响。
螺纹岩石锚杆应具有滚压螺纹，最小防腐蚀保护长度150mm，或者比锚杆本身要好；
Threaded rock bolts shall be provided with rolled threads of min. 150 mm length of the same corrosion protection or better than the bolt itself.
通过对滚压螺纹的工艺分析，提出一种高位置精度螺纹的滚压加工方法，并介绍加工螺纹的夹具。
Analyzed technology of thread-rolling, put forward a method of high positional screw thread working and introduced the fixture configuration of thread-rolling in detail.
本文通过对在双滚柱机上滚压螺纹时，形成尺寸链的分析，找出影响螺纹精度的因素，并提出了解决途径。
Through the analysis of dimensional chain when rolling thread on double-roller machine tool, the effective factors of thread precision were presented, and the way to solve was given.
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