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.
用滚压直螺纹套筒作锚固块的钢筋锚固形式，施工便捷，锚固可靠。
It applies the concrete anchoring of rolling straight thread sleeve-type anchor block, which makes construction convenient and anchoring reliable.
本文介绍了加工螺纹的一种新方法——轴向滚压法，它具有加工质量好、效率高、节省材料等优点。
The paper presents a new threading method-axial rolling. It gives high efficiency, good quality and low material consumption.
通过石油井下钻具接头螺纹冷滚压工艺的研究可以证明冷滚压可大大地提高接头的疲劳强度。
This article proves that rolling operation can largely enhance fatigue strength through the research on the cold rolling operation of thread root of the drilling tool joint.
分析了薄壁厚外螺纹滚压成形的特点，介绍了薄壁厚外螺纹滚压加工方法。
This article introduces an approach for cold extrusion of thin -wall outer -screw and analyses the characteristics of cold extrusion of thin-wall outer-screw.
与套丝加工相比，滚压加工后304钢管螺纹的抗剪拉力和硬度均有大幅提高。
Compared with the thread obtained by cutting process, the shear strain and hardness of 304 steel pipe thread has been increased significantly after rolling process.
与套丝加工相比，滚压加工后304钢管螺纹的抗剪拉力和硬度均有大幅提高。
Compared with the thread obtained by cutting process, the shear strain and hardness of 304 steel pipe thread has been increased significantly after rolling process.
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