摘要
在瓦斯抽采钻孔施工过程中,钻杆承受复杂交变应力的作用,往往从焊缝区断裂,选用合理的摩擦焊接工艺和热处理工艺生产钻杆,增强钻杆焊缝区的机械性能,是延长钻杆服役时间的有效技术途径。
In the process of gas extraction borehole construction, drilling rod bears the effect of complex alternating stress, fractures usually appear in welding seams. Reasonable friction welding and heat treatment technology are effective technical avenue to improve the mechanical property of welding seams and to increase the service life of drilling rod.
出处
《探矿工程（岩土钻掘工程）》
2009年第7期43-45,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
矿用高强度钻杆
关键制造工艺
摩擦焊接工艺
热处理工艺
机械性能
high-strength mine drilling rod
manufacturing technology
friction welding
heat treatment
mechanical property
