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- heavy calibre drill rod pipe 大口径钻杆管
- Integral Short Drill Rod Type DZ. 型整体式短钻杆。
- This paper introduces the size calculation,manufacture and technology as well as the application of the PP/FRP heavy calibre composite tube. 介绍PP/FRP大口径复合管尺寸计算,复合管制备与工艺,以及复合管道应用情况。
- The process for bursh electroplating mending of scratched surface of durel aluminimum alloy rod pipe is introduced. The merits of the technology are discussed. 研究了电刷镀技术在飞机铝合金零件表面划伤修复中的应用,提出了电刷镀修复铝合金件表面划伤的工艺流程及条件。
- Therefore, to the heavy calibre, glass fiber reinforced plastics pipeline and the container production facility and their navar optimization designs the research problem being that are one important. 因此,对大口径管道及容器的生产设备及其控制系统的优化设计是一项重要的研究课题。
- 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;
- 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。
- Applying Automatic Submerged Arc welding for Heavy Calibre Steel Pipe 埋弧自动焊在大口径钢卷管焊接上的应用
- 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;
- Study on Technology of Heavy Calibre Seamless Tube 大口径无缝钢管的工艺研究
- 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
- Pretreatment of Self-Clinched Heavy Calibre Gun Barrel 大口径火炮身管机械自紧前处理工艺生产实践
- The drill rod was designed not rotative,and the piston can turn around along with the chuck fixed on the spindle,so relative rotational movement between them takes place when the lathe runs,and the centre bore drilling was effected. 由于钻杆自身不旋转,而工件被夹持在液压卡盘上随主轴一起旋转,中心孔钻相对工件产生相对旋转运动,从而实现钻削功能。
- The new large displacement rod pipe pump and its application 大排量新型杆管式两性泵研究与应用
- The extension drill rod which can be used for higher capacity drill,the drill hole can be extended to sezeral meetrs, when drilling the straight hole,the core lifter can help coring. 选用加长钻杆于较大能力的钻机,可将钻孔延深至数米,钻垂直孔时,可采用取芯器配合取芯。
- 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。
- 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。
- He lugged a heavy handcart along. 他使劲拉走那笨重的手推车。
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