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    Earth boring apparatus with multiple welds
    21.
    发明授权
    Earth boring apparatus with multiple welds 失效
    具有多个焊缝的钻孔设备

    公开(公告)号：US4273159A

    公开(公告)日：1981-06-16

    申请号：US887005

    申请日：1978-03-16

    Applicant: Jimmie B. Bolton ,  Sam T. Crews

    Inventor： Jimmie B. Bolton ,  Sam T. Crews

    IPC: B23K9/04 ,  C21D9/50 ,  E21B17/04 ,  E21B17/10 ,  F16L9/04

    CPC classification number: E21B17/1085 ,  B23K9/046 ,  C21D9/50 ,  E21B17/04 ,  B23K2201/002 ,  Y10S428/932 ,  Y10T428/12979

    Abstract: A box tool joint member of generally tubular configuration is adapted for securement by welding to one end of a steel tube to form a drill pipe. The box tool joint member comprises a body having a cylindrical outer periphery, an internally threaded socket at one end of the body, and a weld neck of smaller outer diameter than the body adjacent to the other end of the body. A tapered transition piece connecting the neck with the adjacent end of the body provides an elevator shoulder. A correlative pin tool joint member is welded to the opposite end of the tube to complete the drill pipe.The box tool joint member has an annular band of hard facing over the outer periphery of the transition piece and extending down over the adjacent part of the weld neck and up around the adjacent part of the body. The hard facing is corrosion resistant and has a smooth finished surface. Underneath the hard facing and extending beyond both ends of the hard facing is an annular butter layer of non-hardenable steel. The tool joint member is hardened and tempered after the butter layer is welded into a body groove and before the hard facing is welded on .The butter layer is grooved before the hard facing is welded on.

    Abstract translation: 通常为管状构造的盒式工具接头构件适于通过焊接固定到钢管的一端以形成钻杆。 盒式工具接头构件包括具有圆柱形外周的主体，主体一端的内螺纹插座和与身体另一端相邻的主体的外径较小的焊接颈部。 将颈部与身体的相邻端连接的锥形过渡件提供电梯肩部。 将相关的针工具接合构件焊接到管的相对端，以完成钻杆。 盒式工具接头构件具有在过渡件的外周上面向上延伸的焊接颈部的相邻部分上的硬面环状带并且向上延伸到身体的相邻部分。 硬面是耐腐蚀的，表面光滑。 在硬面下方并延伸超过硬面两端的是不可硬化钢的环形黄油层。 在黄油层被焊接到主体凹槽中之后，并且硬面之间被焊接之前，工具接头构件被硬化和回火。黄油层在硬面上焊接之前是开槽的。

    Fusion technique of assembling rotary drill bit and adjusting gage of cutting elements
    22.
    发明授权
    Fusion technique of assembling rotary drill bit and adjusting gage of cutting elements 失效
    组装旋转钻头的熔接技术和调整切割元件的规格

    公开(公告)号：US4209684A

    公开(公告)日：1980-06-24

    申请号：US015170

    申请日：1979-02-26

    Applicant: Robert F. Evans

    Inventor： Robert F. Evans

    IPC: B23K15/00 ,  B23K26/24 ,  E21B10/20 ,  B21D3/16

    CPC classification number: E21B10/20 ,  B23K15/0053 ,  B23K26/24 ,  B23K2201/002 ,  Y10T29/49861

    Abstract: A high energy electron or laser beam is preferably used to assemble a drill bit. Bit segments are integrally adjoined together to form the drill bit assembly. Abutting confronting faces of the adjoining bit segments are aligned parallel to the drill bit axis and are fused together. The parallel alignment significantly simplifies the beam fusion process. The gage of the gage cutting elements of the bit segments is adjusted independently of the process involving assembly of the bit segments. Metal in a leg portion of the bit segments is fused in a zone of predetermined configuration to adjust the gage of the gage cutting elements. The zone of fused metal applies thermal contraction to the leg portion or permanently sets or relieves induced strain forces in the leg portion to permanently deflect the leg portion to a desired position at which the proper gage is obtained.

    Abstract translation: 优选使用高能电子束或激光束来组装钻头。 钻头段一体地邻接在一起以形成钻头组件。 邻接钻头段的相对面相对于钻头轴线平行排列并且熔合在一起。 平行排列显着简化了束融合过程。 钻头段的量规切割元件的量规独立于涉及钻头段的组装的过程被调整。 位段的腿部中的金属熔合在预定构型的区域中以调节量规切割元件的量规。 熔融金属区域对腿部施加热收缩，或永久地设置或减轻腿部中的感应应变力，以将腿部部分永久地偏转到获得适当的量具的期望位置。

    Hardfacing composition
    25.
    发明公开
    Hardfacing composition 有权
    Hartschweißzusammensetzungmit einer spezifischenPartikelgrößenverteilung

    公开(公告)号：EP2570245A2

    公开(公告)日：2013-03-20

    申请号：EP12194621.4

    申请日：2006-10-02

    Applicant: Kennametal Inc.

    Inventor： Macleod, Moira E.

    IPC: B28D1/04 ,  E21B10/30 ,  E21B10/36 ,  F16L35/00 ,  B23K11/00 ,  B23K35/02 ,  C22C29/08 ,  C04B35/56 ,  B22F1/00 ,  E21B10/50 ,  B23K35/22 ,  B23K35/32

    CPC classification number: B22F1/0014 ,  B23K35/228 ,  B23K35/327 ,  B23K2201/002 ,  C22C29/08 ,  E21B10/50

    Abstract: A hardfacing composition (32) that includes a plurality of hard particles (54) wherein the hard particles (54) such as tungsten carbide include a mode particle size distribution, one particle size distribution smaller than the mode particle size distribution, and an other particle size distribution larger than the mode particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the one particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the other particle size distribution.

    Abstract translation: 包括多个硬颗粒（54）的表面硬化组合物（32），其中诸如碳化钨的硬颗粒（54）包括模式粒度分布，小于模式粒度分布的一个粒度分布，以及另一个颗粒 尺寸分布大于模式粒度分布。 在模式粒度分布和一个粒度分布之间的粒度分布没有任何显着的波动。 模式粒度分布与其它粒度分布之间的粒度分布没有任何明显的波动。

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