摘要
插接式螺旋钻杆是一种广泛应用于煤矿松软煤层钻孔施工中的重要钻具,通过改进钻杆接头和连接销的结构,优化接头加工工艺和钻杆的焊接工艺。使用结果表明,提高了钻杆的生产效率和使用性能。
The bolt spiral drilling rod is an important drilling tool widely used in the coal mine soft seam,by improving the structure of drilling joint and connected bolt,optimizing manufacturing technology of the joint and the welding technology of the drilling rod.The results showed that it was improved the production efficiency and usage performance of the drilling rod.
出处
《煤矿机电》
2011年第3期79-81,共3页
Colliery Mechanical & Electrical Technology
关键词
螺旋钻杆
制造工艺
改进
spiral drilling rod
manufacture technology
improvement
