1) down-the-hole bit
潜孔钻头
1.
Numerical simulation on bottom-hole flow field of down-the-hole bit;
潜孔钻头井底流场数值模拟研究
2.
The failure cause was found by analyzing high pneumatic down-the-hole bit bursting crack and the other reasons in the early stage.
对高风压潜孔钻头使用时钻头体崩块、掉齿等早期失效情况进行分析,找到其失效原因。
2) down-the-hole drill bit
潜孔钻头
1.
Numerical simulation of inner field for three different kinds of down-the-hole drill bits;
三种端面形状的潜孔钻头流场CFD数值模拟仿真
3) DTH hammer bit
潜孔锤钻头
1.
The process,impacting concrete slab with tungsten carbide button of DTH hammer bit,was simulating calculated by non-linear finite element software LS-DYNA3D on concrete model,the effects of different target mesh sizes of concrete on impaction force,impact velocity and penetration depth was discussed.
潜孔锤钻头冲击钻进的过程是一个高度非线性、大变形、破坏的过程。
4) Spline down the hole bit
花键潜孔钻头
5) boring bit
钻孔钻头
6) DTH Drill
潜孔钻机
1.
In the case of Model CS-165E DTH drill for opencast mining,SPT-K-2024 controller was used as key component of electric-hydraulic control system.
CS-165E露天潜孔钻机采用SPT-K-2024控制器作为电液控制系统的核心部件,由SPT-K-2024控制器直接驱动电液比例阀和电磁阀,接受传感器信号;通过CANO-PEN总线实现2个控制器和一个SPT-X-AT2纯文本显示器组网,极大地提高了系统的稳定性和可靠性。
2.
In order to meet the need of the large-diameter longhole drilling in underground mines and the control of slope in open pit mines,entrusted by the Chinese govern-ment,Changsha Institute of Mining Research(CIMR)carried out a study on high pressurepneumatic DTH drill.
为了满足地下矿山大孔径深孔凿岩和露天矿山边坡控制的需要，我院受国家之命开展了高气压潜孔钻机的研究工作；自１９８０年以来先后研制成功几种典型产品并在矿山付诸应用。
3.
Based on the analysis of actualities and development situation of DTH drill abroad,and compared with actualities of DTH drill at home,a development thought for our country at present is put forward.
潜孔钻机以其特有的凿孔特点占据了很大一块市场。
补充资料：KQX-120型潜孔旋转两用钻机
KQX-120型潜孔旋转两用钻机
KQX一120型 潜孔旋转两用钻机巍
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条