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- Keywords drill rod joint;surface hardening;wearing resistance;boriding; 钻杆接头;表面硬化;耐磨性;渗硼;
- Effect of Surface Hardness with Nitrogen Ion Doping for Drill Rod Joint Material 氮离子注入对钻杆接头材料表面硬度的影响
- Theoretical Computation, Measurement and Analysis of Tran sfer Characteristics of Impact Energy Through Drill Rod Joint 冲击能在钎杆接头处传播的理论计算及测试分析
- Analysis on Surface Cracking of Petroleum Drilling Rod Joint 石油钻杆接头表面开裂原因分析
- Integral Short Drill Rod Type DZ. 型整体式短钻杆。
- drill rod joint 钻杆接头
- Keywords rotary drill rod;torsion strength;weld;heat treatment; 旋挖钻杆;抗扭强度;焊接;热处理;
- The drill rig adopts hydraulic transmission way to realize the rotation,propulsion,getting up and pulling of drill,as well as adjustment and fixing of drill rod obliquity during working. 该机工作过程中钻具的旋转、推进、起拔以及钻杆倾角的调整和固定等动作全部采用液压传动方式实现;
- The floating Rotary Head avoids abnormally wearing of drill rods' threads. 滑动式动力头，避免钻杆丝扣的非正常磨损；
- The floating trailing plates avoid abnormally wearing of drill rods' threads. 浮动式动力头拖板，避免钻杆丝扣的非正常磨损；
- The corrosion resistant plate penstock is in the frame of obvious-stem, which mainly consists of lifting device, frame, gate plate, seal, wedge block compressing set, rod and rod joint, rod guide tube, install accessory and etc. 不锈钢闸门为明杆式结构，主要由启闭装置、闸框、闸板、密封件、楔块压紧装置、门杆和杆接头、杆导架、安装附件等组成。
- Most products we produce are key components for automobiles,such as:shperical hinge,nutted rod joint,ballandspigot,knuckle,connecting,rod,sliding york,flang fork,and some other products. 我们所生产的主要产品是汽车上的关键件，主要产品有：球铰链接头，拉杆接头，球销，转向节，连杆，滑动叉等以及其它产品。
- Is the earliest Chinese manufacturer of the aluminium alloy cooling rods for the drill rod welding in the PTC industry. 公司以扎实的科研力量为依托，雄厚的生产实力为基础。
- Keywords drill stem;antenna;telemetering; 钻杆;天线;遥测;
- Keywords Drill hole;Concrete pulp;Transportation; 钻孔;混凝土料浆;输送;
- Rotary drill rod used for coal mining roofbolter 煤矿锚杆钻机用回转钻杆
- Shape and dimension of shank for drill rod 凿岩机导杆形状及尺寸
- The rig is equipped with an upper spherical jaw holding mechanism and hexagonal drive drilling rod which can be replaced without shutdown, high efficiency, safe and reliable. 钻机配有上球卡式夹持机构并带有六方主动钻杆,可实行不停机倒杆,工作效率高,安全可靠。
- Keywords drill stem testing;on gusher testing;screw pump;APR tools; 钻柱地层测试;非自喷井;螺杆泵;APR工具;
- Model QW50A Air Operated Slips is a wellhead tools. Mainly used to clipping tubing and drilling rod which raise or put down at well repairing service operation. QW50A气动卡瓦是油田修井作业时，安装在井口上用于卡紧油管及类似管柱的一种工具。
