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公开(公告)号：US4277108A
公开(公告)日：1981-07-07
申请号：US145413
申请日：1980-05-01
Applicant: Duane W. Wallace
Inventor： Duane W. Wallace
CPC classification number: E21B17/1085 , B23K31/025 , B23K35/327 , B23K9/046 , E21B17/04 , B23K2201/002
Abstract: A method is disclosed for applying to rotating well drilling parts such as tool joints a multiple layer of hardbanding materials to provide extended wear service for the well tools without incurring any of the accompanying spalling normally associated with heavy layers of hardbanding.
Abstract translation: 公开了一种应用于旋转钻井部分（例如工具接头）的多层耐磨布材料的方法，以为井工具提供延长的磨损服务，而不会引起通常与重层加固带相关的任何伴随剥落。
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公开(公告)号：US4256518A
公开(公告)日：1981-03-17
申请号：US49351
申请日：1979-06-18
Applicant: Jimmie B. Bolton , Sam T. Crews
Inventor： Jimmie B. Bolton , Sam T. Crews
CPC classification number: E21B17/1085 , B23K9/046 , C21D9/50 , E21B17/04 , B23K2201/002
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。 在将黄油层焊接到主体凹槽中之后，并且硬表面被焊接之前，工具接头构件被硬化和回火。 在硬面焊接之前，黄油层开槽。
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公开(公告)号：US4210270A
公开(公告)日：1980-07-01
申请号：US953738
申请日：1978-10-23
Applicant: Lloyd L. Garner
Inventor： Lloyd L. Garner
CPC classification number: B23K15/0013 , B23K37/04 , E21B10/20 , B23K2201/002 , Y10T29/49769
Abstract: A method and apparatus is disclosed for monitoring the parameters of a rock bit which utilizes electronic sensing principles. The use of these sensing devices will provide continuous measurement of the rock bit through remote monitoring equipment. The sensing devices monitor the rock bit parameters during the electron beam welding process to assure that both the height and the gage of the rock bit remains within set tolerances while the welding process is taking place.
Abstract translation: 公开了一种用于监测利用电子感测原理的岩石钻头的参数的方法和装置。 使用这些感测装置将通过远程监控设备对岩石钻头进行连续测量。 传感装置在电子束焊接过程中监测岩石钻头参数，以确保在焊接过程发生时岩石钻头的高度和厚度都保持在设定的公差范围内。
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公开(公告)号：US3907191A
公开(公告)日：1975-09-23
申请号：US40920873
申请日：1973-10-24
Applicant: DRESSER IND
Inventor： LICHTE CARL LAURENT
CPC classification number: B23K15/0013 , B23K2201/002 , E21B10/20 , Y10T29/49895
Abstract: A rotary rock bit is constructed from a multiplicity of individual segments. Each individual segment includes two parting faces and a gage cutting surface. The individual segments are positioned adjacent each other with the parting faces of the adjacent segments in abutting relationship to one another. A ring gage is positioned around the segments and the individual segments are moved relative to one another causing the parting faces of an individual segment to slide against the parting faces of the adjacent segments. The segments are moved until the gage cutting surfaces of the segments contact the ring gage thereby insuring that the finished bit will have the desired gage size. The segments are welded together over a substantial portion of the parting faces.
Abstract translation: 旋转岩石钻头由多个单独的段构成。 每个单独的段包括两个分开面和一个量规切割表面。 各个片段彼此相邻地定位，相邻片段的分离面彼此邻接关系。 环形计量元件围绕片段定位，并且各个片段相对于彼此移动，使得单个片段的分离面相对于相邻片段的分型面滑动。 段被移动直到段的量规切割表面接触环规，从而确保成品钻头具有期望的规定尺寸。 这些段在分离面的大部分上被焊接在一起。
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5.发明授权
公开(公告)号：US4781770A
公开(公告)日：1988-11-01
申请号：US83404
申请日：1987-08-10
Applicant: Naresh J. Kar
Inventor： Naresh J. Kar
CPC classification number: C21D1/09 , B23K26/32 , B23K26/34 , B23K35/0244 , B23K35/30 , B23K35/3033 , B23K35/3046 , B23K35/327 , C21D9/22 , E21B10/22 , E21B10/50 , E21B10/52 , B23K2201/002 , B23K2203/50 , B23K2203/52 , Y10S148/903 , Y10S148/905
Abstract: A cone blank for a rotary cone rock bit is forged, rough machined, carburized and heat-treated, followed by the formation of insert holes therein. Inserts are then pressed into the insert holes. The finished cone is subsequently sprayed with hardfacing cladding material in powdered form. The powder is thereafter densified and fused with a laser source to give a hard, erosion-resistant clad layer on the outer surface, including in the immediate vicinity of the inserts.
Abstract translation: 用于旋转锥形钻头的锥形坯料被锻造，粗加工，渗碳和热处理，然后在其中形成插入孔。 然后将插入件压入插入孔中。 随后用粉末形式的表面覆层材料喷涂成品锥体。 然后将粉末致密化并与激光源熔合，以在外表面上提供硬的耐侵蚀的包层，包括在插入件的紧邻附近。
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Patent Agency Ranking
公开(公告)号：US4258807A
公开(公告)日：1981-03-31
申请号：US953556
申请日：1978-10-23
Applicant: John F. Fischer , Elton R. Foor
Inventor： John F. Fischer , Elton R. Foor
CPC classification number: E21B10/20 , B23K15/0073 , B23K35/325 , B23K2201/002
Abstract: Segments of a rock bit are secured together by electron-beam welding. The segments are slightly spaced apart prior to welding by a thin shim of alloying metal such as titanium which improves ductility of the weld and is a strong carbide-former during welding. The shim is positioned between adjacent segments in the region of the crown or dome of the bit. The resulting welded interface is a fine-grain stress-relieved structure with good ductility and resistance to cracking.
Abstract translation: 通过电子束焊接将岩石块的部分固定在一起。 在通过诸如钛的合金金属的薄垫片焊接之前，这些段稍微间隔开来，这改善了焊缝的延展性，并且在焊接期间是强硬的碳化物形成体。 垫片定位在钻头的冠部或圆顶的区域中的相邻节段之间。 所得到的焊接界面是具有良好延展性和抗开裂性的细晶粒应力释放结构。
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公开(公告)号：US4045646A
公开(公告)日：1977-08-30
申请号：US581997
申请日：1975-05-29
Applicant: Carl Laurent Lichte
Inventor： Carl Laurent Lichte
CPC classification number: E21B10/20 , B23K15/0013 , B23K2201/002
Abstract: A positioning fixture is provided for clamping individual segments of a rock bit together in position for an assembled bit with an accurate gage diameter and aligning the seams between the segments with a beam of energy from a welding gun. Relative movement between the segments and the beam causes the beam to traverse the seam in the plane of the seam and fuse the segments together. The segments are indexed by the fixture to sequentially bring the additional seams into alignment with the beam. Relative movement between the segments and the beam causes the beam to traverse the seams in the plane of the seams and fuse the segments together.
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公开(公告)号：US4043411A
公开(公告)日：1977-08-23
申请号：US741167
申请日：1976-11-12
Applicant: Carl Laurent Lichte
Inventor： Carl Laurent Lichte
CPC classification number: E21B10/20 , B23K15/0053 , E21B10/62 , B23K2201/002
Abstract: A rotary rock bit is constructed from at least one rock bit arm and a separate bearing pin. The rock bit arm includes a curved shirttail surface, a plane cutter receiving surface, and a mounting passage extending through said rock bit arm from said cutter receiving surface to said shirttail surface. The bearing pin includes a bearing section and a mounting section. The mounting section is positioned in the mounting passage of the rock bit arm thereby forming a seam between the mounting section of the bearing pin and the mounting passage in the rock bit arm. The mounting section of the bearing pin is fused to the rock bit arm using a beam of energy. The beam of energy is directed from an energy source located on the plane cutter receiving surface side of the rock bit arm. The plane cutter receiving surface is maintained substantially perpendicular to the beam of energy and the beam source is maintained substantially at a fixed distance from the cutter receiving surface during the fusing operation.
Abstract translation: 旋转岩石钻头由至少一个岩石钻头臂和单独的轴承销构成。 岩石钻头臂包括弯曲的衬衫表面，平面切割器接收表面以及从所述切割器接收表面延伸穿过所述钻头臂到所述衬衫尾部表面的安装通道。 轴承销包括轴承部分和安装部分。 安装部分位于岩石钻头臂的安装通道中，从而在轴承销的安装部分和岩石钻头臂中的安装通道之间形成接缝。 轴承销的安装部分使用能量束熔接到岩石钻头臂。 能量束从位于岩石钻头臂的平面切割器接收表面侧上的能量源引导。 平面切割器接收表面保持基本上垂直于能量束，并且在熔化操作期间，束源基本上保持与切割器接收表面的固定距离。
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9.发明授权Method for manufacturing a rotary rock bit with improved weld root geometry 失效用于制造具有改善的焊根几何形状的旋转岩石钻头的方法
公开(公告)号：US4866245A
公开(公告)日：1989-09-12
申请号：US201249
申请日：1988-06-02
Applicant: Eric C. Sullivan
Inventor： Eric C. Sullivan
CPC classification number: B23K33/006 , E21B10/20 , B23K2201/002
Abstract: A method is shown for manufacturing rotary rock bits. The method reduces the effect of stresses in the area of the radial weld seams by providing a channel in the interior of the bit which intersects the root region of each weld, providing a generous radius for the root region of each radial weld.
Abstract translation: 示出了用于制造旋转岩石钻头的方法。 该方法通过在钻头的内部提供与每个焊缝的根部区域相交的通道，从而减小了径向焊缝区域中的应力的影响，为每个径向焊缝的根部区域提供了大的半径。
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公开(公告)号：US4685359A
公开(公告)日：1987-08-11
申请号：US893112
申请日：1986-08-04
Applicant: Steven J. Worthen , James D. Oursler
Inventor： Steven J. Worthen , James D. Oursler
CPC classification number: E21B10/61 , B23K35/327 , B23P15/28 , C23C24/103 , C23C26/02 , C23C30/005 , B23K2201/002
Abstract: A method of manufacturing a steel bodied bit is shown in which a hardfacing of a highly conformable metal cloth containing hard, wear resistant particles is applied to the bit face as well as to the interior of the bit nozzle openings. By hardfacing the nozzle openings, fluid erosion in the region of the openings is eliminated.
Abstract translation: 示出了制造钢体的方法，其中将含有耐磨损的颗粒的高度适形的金属布的硬化面施加到钻头面以及钻头喷嘴开口的内部。 通过使喷嘴开口硬化，消除了开口区域中的流体侵蚀。
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