摘要
介绍了国内绳索取心钻杆和摩擦焊技术的现状。通过对3种深孔绳索取心钻杆连接结构和生产过程的对比,分析了薄壁摩擦焊绳索取心钻杆用于深孔钻探的优势。介绍了 Ф73 mm×5 mm薄壁摩擦焊绳索取心钻杆的结构设计和加工过程,提出了焊接过程的主要技术问题和注意事项。通过拉力扭矩试验得出钻杆主要技术参数,能承受的最大拉力580 kN,最大扭矩5500 N·m,建议使用深度2000~3000 m。
The current situation of coring drill pipe and friction welding technology is presented. Through the comparison of3 kinds of deep hole wire-line coring drill pipe connection structure and production process,analysis was made on the advantages of the use of thin-wall wire-line coring drill pipe by friction welding in deep hole drilling. The paper introduces the structure design and the machining process of Ф73mm × 5mm thin-wall wire-line coring drill pipe by friction welding and puts forward the main technical problems and matters needing attention in the welding process. The main technical parameters of the drill pipe are obtained through the tension and torque tests,the maximum tensile force and torque are 580 k N and5500N·m respectively,and the recommended use depth is 2000 ~ 3000 m.
出处
《探矿工程（岩土钻掘工程）》
2015年第10期50-54,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
绳索取心钻杆
摩擦焊接
公母接头
钻杆管体
薄壁
wire-line coring drill pipe
friction welding
male and female connector
drill pipe body
thin-wall
