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公开(公告)号：US07128773B2
公开(公告)日：2006-10-31
申请号：US10836595
申请日：2004-04-30
申请人： Dah-Ben Liang , Greg Lockwood , Anthony Griffo
发明人： Dah-Ben Liang , Greg Lockwood , Anthony Griffo
CPC分类号： E21B10/567 , B22F3/156 , B22F2005/001 , B22F2998/00 , C04B35/5626 , C04B35/64 , C04B35/6455 , C04B2235/3839 , C04B2235/3847 , C04B2235/405 , C04B2235/5436 , C04B2235/5472 , C04B2235/661 , C04B2235/96 , C22C29/06 , C23C30/005 , E21B10/46 , E21B10/56
摘要： A composite material includes a double cemented carbide and a coarse grain dopant, wherein the coarse grain is added in an amount sufficient to improve wear resistance of virgin double cemented carbide. The double cemented carbide may selected from the group of carbides consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain dopant may also be at least one carbide selected from the group consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain carbide may be between about 5% to about 90% by weight of the total carbide in the composite. Preferably, the coarse grain carbide is about 10% to about 50% by weight of the total carbide in the composite.
摘要翻译： 复合材料包括双重硬质合金和粗颗粒掺杂剂，其中粗粒以足以提高原始双重硬质合金的耐磨性的量加入。 双重硬质合金可以选自由W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物组成的碳化物组。 粗晶粒掺杂剂也可以是选自W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物中的至少一种碳化物。 粗晶粒碳化物可以占复合材料中总碳化物重量的约5％至约90％。 优选地，粗晶粒碳化物为复合材料中总碳化物的约10重量％至约50重量％。
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公开(公告)号：US07036614B2
公开(公告)日：2006-05-02
申请号：US10396261
申请日：2003-03-25
申请人： Dah-Ben Liang , Anthony Griffo
发明人： Dah-Ben Liang , Anthony Griffo
IPC分类号： E21B10/36
CPC分类号： E21B10/52 , B22F2005/001 , C22C29/08 , E21B10/08 , E21B10/16 , E21B17/1092
摘要： An insert for a rock bit that includes tungsten carbide particles, and a cobalt binder disposed around the particles, wherein a grain size of the tungsten carbide particles and a content of the cobalt binder are selected to provide a fracture toughness of at least about 18 ksi (in)0.5, a wear number of at least about 2, and a hardness of 85 to 87 Ra is disclosed.
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13.发明授权公开(公告)号：US07017677B2
公开(公告)日：2006-03-28
申请号：US10437750
申请日：2003-05-14
CPC分类号： E21B10/567 , C22C29/08 , C23C30/005
摘要： Cutting elements having coarse grain substrates and ultra hard material layers are provided. The substrates are formed from coarse grain size particles of tungsten carbide. A method of forming such cutting elements and a drag bit incorporating such cutting elements are also provided.
摘要翻译： 提供具有粗颗粒基材和超硬材料层的切割元件。 基板由碳化钨的粗粒度颗粒形成。 还提供了形成这种切割元件的方法和包括这种切割元件的拖曳钻头。
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公开(公告)号：US07549912B2
公开(公告)日：2009-06-23
申请号：US11197119
申请日：2005-08-04
IPC分类号： B24B31/108 , B21K5/06 , E21B10/46
CPC分类号： B24B31/104
摘要： A method for manufacturing drill bit inserts in which the inserts are finished in a centrifugal disc finishing machine. The centrifugal disc finishing machine comprises a configured surface rotating relative to a stationary receptacle, and the inserts may be finished with a mass of materials comprising at least one of a group of media, parts, detergent, and solution. Also, a method of increasing drill bit insert performance comprising accelerating a plurality of inserts in a high-energy finishing machine, wherein the acceleration results in a generally toroidal interaction between the inserts and at least one of the group comprising media, parts, detergent, and solution.
摘要翻译： 一种用于制造钻头刀片的方法，其中刀片在离心盘精加工机中完成。 离心盘整理机包括相对于固定容器旋转的配置表面，并且插入件可以用包含一组介质，部件，洗涤剂和溶液中的至少一种的材料制成。 而且，增加钻头刀片性能的方法包括加速高能精加工机中的多个刀片，其中加速度导致插入件和包括介质，部件，洗涤剂的组中的至少一个组件之间的大致环形相互作用， 和解决方案。
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15.发明授权
公开(公告)号：US4549615A
公开(公告)日：1985-10-29
申请号：US397423
申请日：1982-07-12
申请人： Dah-Ben Liang , Robert S. Gulibon
发明人： Dah-Ben Liang , Robert S. Gulibon
摘要： Disclosed is a single-pass notching and drilling tool. The tool comprises an adaptor having a first threaded end for coupling with a power source, an opposed second threaded end, an enlarged diameter portion adjacent to the first threaded end and having a first abutment face and a mediate portion adjacent to the first axial abutment face and adjacent to the second threaded end. There is also a drill portion joined to the second threaded end of the adaptor and having a second axial abutment face. The tool further comprises a notching tool comprising a body having a central bore rotatably engaging the mediate portion of the adaptor. The notching tool is freely rotatable about the mediate portion independent of the rotation of the adaptor. The axial movement of the notching tool is bounded by the first and second axial abutment faces. Disclosed also is a method of drilling a blast hole with the single-pass notching and drilling tool.
摘要翻译： 公开了一种单程切口和钻孔工具。 该工具包括适配器，该适配器具有用于与动力源联接的第一螺纹端，相对的第二螺纹端，与第一螺纹端相邻的扩大直径部分，并且具有第一邻接面和邻近第一轴向邻接面的中间部分 并且与第二螺纹端相邻。 还有一个连接到适配器的第二螺纹端并具有第二轴向邻接面的钻头部分。 该工具还包括切口工具，其包括具有可旋转地接合适配器的中间部分的中心孔的主体。 开槽工具可以独立于适配器的旋转而围绕中间部分自由旋转。 开槽工具的轴向移动由第一和第二轴向邻接面限定。 还公开了使用单程切口和钻孔工具钻孔的方法。
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公开(公告)号：US08561731B2
公开(公告)日：2013-10-22
申请号：US12566428
申请日：2009-09-24
IPC分类号： E21B10/36
CPC分类号： C22C29/02 , B22F2005/001 , B22F2998/10 , B22F2999/00 , C22C29/005 , C23C16/34 , C23C16/40 , C23C16/4417 , C23C16/45525 , C23C30/005 , E21B10/56 , B22F1/0018 , B22F1/02 , B22F1/0044
摘要： A down hole drill bit is disclosed that includes a plurality of cutting elements mounted on a cutting structure. At least one of the plurality of cutting elements comprises a wear resistant material, the wear resistant material comprising coarse grains disposed in a binder matrix phase, wherein the binder matrix phase comprises nanoparticles uniformly dispersed therein.
摘要翻译： 公开了一种井下钻头，其包括安装在切割结构上的多个切割元件。 所述多个切割元件中的至少一个包括耐磨材料，所述耐磨材料包含设置在粘合剂基质相中的粗晶粒，其中所述粘合剂基质相包含均匀分散在其中的纳米颗粒。
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17.发明申请CUTTING ELEMENTS WITH INCREASED TOUGHNESS AND THERMAL FATIGUE RESISTANCE FOR DRILLING APPLICATIONS 有权切削元件具有增加的韧性和耐热耐久性的钻孔应用公开(公告)号：US20080245576A1
公开(公告)日：2008-10-09
申请号：US12059775
申请日：2008-03-31
IPC分类号： E21B10/08
摘要： Cutting elements offering increased toughness and thermal fatigue resistance can be formed of a wear resistant material having coarse grains disposed in a binder matrix with a binder content of at least about 18% by weight. The coarse grains include grains of at least one selected from the group of a transition metal carbide, a transition metal boride, and transition metal nitride. The binder content and coarse grain size may be selected to provide a Rockwell A hardness of at least about 75 Ra or a wear number of at least about 1.5.
摘要翻译： 具有提高韧性和耐热疲劳性的切割元件可以由具有粗颗粒的耐磨材料形成，所述耐磨材料具有设置在粘合剂基质中的粘合剂含量至少为约18重量％。 粗晶粒包括选自过渡金属碳化物，过渡金属硼化物和过渡金属氮化物中的至少一种的晶粒。 可以选择粘合剂含量和粗粒度以提供至少约75Ra的Rockwell A硬度或至少约1.5的磨损值。
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公开(公告)号：US20070000699A1
公开(公告)日：2007-01-04
申请号：US11478559
申请日：2006-06-29
IPC分类号： E21B10/36
CPC分类号： E21B10/56 , C23C30/005
摘要： A cutting tool that includes at least one tungsten carbide cutting element disposed on a support, wherein at least one tungsten carbide cutting element has at least one localized region having a material property different from the remaining region, wherein the at least one localized region having a different material property is prepared by a method including determining at least one localized region needing a variation in a material property different from the remaining region; coating a portion of a surface of the at least one tungsten carbide cutting element with a refractory material such that a surface corresponding to the localized region is left uncoated; and treating the coated cutting element with a selected agent to diffuse the selected agent into the localized region is disclosed.
摘要翻译： 一种切削工具，其包括设置在支撑件上的至少一个碳化钨切割元件，其中至少一个碳化钨切割元件具有至少一个具有不同于其余区域的材料性质的局部区域，其中所述至少一个局部区域具有 通过包括确定需要不同于剩余区域的材料性质的变化的至少一个局部区域的方法来制备不同的材料性质; 用耐火材料涂覆所述至少一个碳化钨切割元件的表面的一部分，使得对应于所述局部区域的表面不被涂覆; 并且公开了用所选择的试剂处理涂覆的切割元件以将所选择的试剂扩散到局部区域中。
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公开(公告)号：US06655478B2
公开(公告)日：2003-12-02
申请号：US10017404
申请日：2001-12-14
申请人： Dah-Ben Liang , Gary Portwood , Paul E. Cox , John L. Williams
发明人： Dah-Ben Liang , Gary Portwood , Paul E. Cox , John L. Williams
IPC分类号： E21B1036
CPC分类号： E21B17/1092 , C22C29/08 , E21B10/08 , E21B10/52
摘要： A fracture and wear resistant rock bit is disclosed, which includes a bit body, and at least one roller cone disposed on the bit body adapted such that at least one row of cutting elements disposed on the at least one roller cone defines a gage row. At least one cutting element disposed on the gage row has a fracture toughness of at least 20 ksi (in)0.5 and a wear number of at least 1.5.
摘要翻译： 公开了一种断裂和耐磨岩石钻头，其包括钻头体，以及设置在钻头体上的至少一个滚子锥体，其适于使得至少一排切割元件设置在所述至少一个滚子锥体上，限定出规定的行。 至少一个设置在计量排上的切割元件具有至少20ksi（in）<0.5>的断裂韧性和至少1.5的磨损值。
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20.发明授权Rock bit with hardfacing material incorporating spherical cast carbide particles 失效具有硬质合金材料的岩石，包含球形碳化物颗粒
公开(公告)号：US5791422A
公开(公告)日：1998-08-11
申请号：US815745
申请日：1997-03-12
CPC分类号： B22F1/0014 , B23K35/327 , C22C29/08 , C23C30/005 , E21B10/50 , B22F2005/001 , B22F2998/00 , B22F2999/00
摘要： An improved hardfacing for teeth and other surfaces of milled tooth rock bits includes steel in the range of from 20 to 50 percent by weight, and filler in the range of from 50 to 80 percent by weight. The filler includes spherical cast tungsten carbide particles alone or in a mixture of other tungsten carbide particles such as crushed cast spherical or crushed cemented tungsten carbide, macrocrystalline tungsten carbide, or the like. The single crystal monotungsten tungsten carbide particles have a particle size in the range of from 16 to 40 mesh and/or in the range of from 80 to 200 mesh.
摘要翻译： 用于齿和其他铣削牙齿钻头表面的改进的表面硬化包括在20至50重量％范围内的钢和填料在50至80重量％范围内。 填料包括单独的球形铸造碳化钨颗粒或其它碳化钨颗粒的混合物，例如粉碎的球形或粉碎的粘结碳化钨，微晶碳化钨等。 单晶单钨碳化钨颗粒的粒径在16至40目范围内和/或在80至200目的范围内。
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