查询词典 drilling bit

Grant prideco drilling products.co., ltd tianjin tanggu branch is wholly owned subsidiary of nov grant prideco is the world's leader in drill stem technology and drill pipe manufacturing, a global leader in drill bit technology and manufacturing, and a leading provider of high-performance engineered connections and premium tubular products.

格兰特钻具有限公司北京分公司是国民油井华高所属的一家全美资公司。格兰特公司在钻柱技术和生产以及在钻头技术和生产方面一直处于全球领先地位。同时也是全球最主要的高性能钻杆供应商之一。

Main applicability: Welding of the miamond knife head, the carbide alloy saw bit , machine work use carbide alloy cutter welding, if the cutting tool welding such as miamond cutter , drilling tool , lathe tool , shaper tool , milling cutter , broach; Standard piece , hot bolt rammer, if high-strength bolt , nut etc.; Hardware implement , handwork implement heat treatment, if tongs , spanner , whorl utensil , hammer , axe; The accessory high frequency quenching sells the various automobile accessory , motorcycle at reduced prices, such as: Crank shaft , connecting rod , wrist pin , crank pin , sprocket , axial cam , air valve , various rocker arm , rockshaft; Within speed change box, the various gear wheel , castellated shaft , biography prop up high frequency quenching treatment such as half axes , various small axis , various shift fork; The part heat treatment , the high frequency quenching that the gear wheel , sprocket , various axis , castellated shaft , pin wait for if various handle metal; Mssingle of face slide way quenching sells machine tool industry machine at reduced prices waiting.

主要适用范围：金刚石刀头的焊接，硬质合金锯片、机械加工用硬质合金刀具的焊接，如金刚石刀具、钻具、车刀、刨刀、铣刀、铰刀等刃具的焊接；标准件、螺栓的热镦，如高强度螺栓、螺帽等；五金工具、手工工具的热处理，如钳子、扳手、旋具、锤子、斧头；各种汽车配件、摩托车配件的高频淬火处理，如：曲轴、连杆、活塞销、曲柄销、链轮、凸轮轴、气门、各种摇臂、摇臂轴；变速箱内各种齿轮、花键轴、传支半轴、各种小轴、各种拨叉等高频淬火的处理；金属零件的热处理，如各种齿轮、链轮、各种轴、花键轴、销等的高频淬火处理；机床行业的机床床面导轨的淬火处理等。

Using a variable speed hand electric drill with a sharp 1/2 bit that you know will cut properly into hardwoods, slowly drill out for the strap jack - check to make sure you're drilling as close to 90 degrees to the guitar body as possible.

采用变速手电钻急剧1 / 2 位时，您知道将削减到正确硬木，慢慢钻了带杰克-检查，以确保您钻井接近90度的吉他机构可能的。

The present invention relates to a rock drill bit (1) for percussive drilling.

本发明涉及用于冲击钻孔的岩石钻头(1)。

The present invention relates to a drill bit intended for percussive rock drilling.

本发明涉及一种用于冲击岩石钻孔的钻头。

Power drill tool and PDC bit are used to ensure wellbore quality and penetration rate; polysulfonate potassium drilling fluid system is used to ensure downhole safety.

应用动力钻具配合高效PDC钻头钻井技术，保证了井身质量和钻井速度；应用聚磺钾盐钻井液体系及相关安全技术措施，保证了井下安全。

The discussion is focused on the determination of the minimum air rate when there is reservoir fluid influx during air drilling, injection pressure at standpipe, and bit nozzle pressure.

应用气体状态方程、热力学定律对空气钻井中各个流动参数进行分析，重点讨论储层流体涌入时空气钻井过程中最小空气流量的确定，以及立管注入压力和钻头喷嘴压力等问题。

According to the grey theory,a new method of pore pressure prediction for undrilled formation beneath the bit was offered in the thesis,and a grey model of formation pore pressure prediction while drilling was es.

文章以灰色理论为基础，提出了钻头下部未钻开地层的孔隙压力预测新方法，建立了地层孔隙压力随钻预测灰色模型群。

Slow RPM and light WOB are needed in drilling with a new bit at the beginning.

钻头使用初期要慢点转达。

The frequency about 16KHZ the permeabIe feverΦ60 about work Piece,mayweld many kinds of hard aIloy tools 1、the standard Piece.the faslener heat upset 2、drill rod steel,drill rod utensil drawing-back,forge,squeeze the warmup waiting 3、Welding of diamond saw.drilling tool 4、Bit,coal aiguille,rivetting the pole aiguille,welding of the pick 5、Lathetool,planer tool,milling cutter and welding of different woodwork cutters

目前使用感应加热设备的用户因自身条件各不相同对于冷却水系统重视不够，未按规定使用纯净水而使用井水或自来水，造成冷却部位结垢，局部温度升高严重影响电器元件的可靠性和使用寿命。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。