drill rod

基本解釋

This device is a new kind of drill rod fixture to be used with the rod storage to implement the mechanization of drill rods connection for drill rigs.
該機構(gòu)是一種新型的接卸鉆桿機構(gòu)，其與貯桿器配合使用可使鉆機實現(xiàn)機械化接卸鉆桿。
It uses drill rod connector to directly connect the drill rods, so that during the drilling work, it dose not require fixing or dismantling any of the other drilling tools on the Kelly.
采用鉆桿聯(lián)接器直接連接鉆桿，在鉆進工作時不需要在主動鉆桿上再裝卸其它鉆具。
hbjltk.net
The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardened and high temperature tempered.
結(jié)果表明，碳化物分布不均勻?qū)е抡{(diào)質(zhì)處理后在鉆桿接頭中產(chǎn)生“帶狀組織”。

釬桿
When drill shank is revoluting,the drill rod will wear with the rock,specially the surface of the screw chaser pontes will wear severely,which affect the fatigue life.
釬桿的旋轉(zhuǎn)鑿巖過程會與巖石產(chǎn)生摩擦磨損、特別是螺紋連接部分表層會產(chǎn)較大的磨損,對釬桿疲勞壽命產(chǎn)生重要影響。認為在這種服役條件下的疲勞壽命是多載荷共同控制的疲勞壽命。
鉆桿