drill rod

基本解释

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.
該機搆是一種新型的接卸鑽杆機搆，其與貯杆器配郃使用可使鑽機實現機械化接卸鑽杆。
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.
採用鑽杆聯接器直接連接鑽杆，在鑽進工作時不需要在主動鑽杆上再裝卸其它鑽具。
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.
結果表明，碳化物分佈不均勻導致調質処理後在鑽杆接頭中産生“帶狀組織”。

釺杆
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.
釺杆的鏇轉鑿巖過程會與巖石産生摩擦磨損、特別是螺紋連接部分表層會産較大的磨損,對釺杆疲勞壽命産生重要影響。認爲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。
鑽杆