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公开(公告)号：US5663512A
公开(公告)日：1997-09-02
申请号：US343005
申请日：1994-11-21
申请人： Kevin W. Schader , Ronald L. Jones , James L. Overstreet , Danny E. Scott , Mou-Chih Lu , Alan J. Massey
发明人： Kevin W. Schader , Ronald L. Jones , James L. Overstreet , Danny E. Scott , Mou-Chih Lu , Alan J. Massey
CPC分类号： C22C1/051 , B22F1/0003 , B23K35/327 , C23C30/005 , C23C4/10 , E21B10/50 , B22F2999/00
摘要： A hardfacing composition comprises at least 60% by weight of hard metal granules including a quantity of sintered carbide pellets and a quantity of cast carbide pellets. The cast and sintered carbides are selected from the group of carbides consisting of chromium, molybdenum, niobium, tantalum, titanium, tungsten, and vanadium carbides and alloys and mixtures thereof. The balance of the hardfacing composition is matrix metal with traces of flux or deoxidizer, and alloying elements. All percentages given are pre-application ratios.
摘要翻译： 表面硬化组合物包含至少60重量％的硬质金属颗粒，其包括一定数量的烧结碳化物颗粒和一定数量的碳化物颗粒。 铸态和烧结碳化物选自由铬，钼，铌，钽，钛，钨和碳化钒组成的碳化物和合金及其混合物。 耐磨组合物的平衡是具有助焊剂或脱氧剂痕量的基质金属和合金元素。 所有给出的百分比是应用前比例。
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公开(公告)号：US07350600B2
公开(公告)日：2008-04-01
申请号：US11511119
申请日：2006-08-28
申请人： Christopher C. Beuershausen , Raul E. Lema , Ronald Hales , Don Q. Nguyen , Gregory L. Ricks , Chih C. Lin , Terry J. Koltermann , Mark E. Morris , Chris M. McCarty , Ronald L. Jones , James L. Overstreet , Rudolf Carl Otto Pessier
发明人： Christopher C. Beuershausen , Raul E. Lema , Ronald Hales , Don Q. Nguyen , Gregory L. Ricks , Chih C. Lin , Terry J. Koltermann , Mark E. Morris , Chris M. McCarty , Ronald L. Jones , James L. Overstreet , Rudolf Carl Otto Pessier
IPC分类号： E21B10/50
CPC分类号： E21B10/08
摘要： An earth-boring bit has a bit body that includes head sections, each having depending bit legs with a circumferentially extending outer surface, a leading side, and a trailing side. A bearing shaft depends inwardly from each of the bit legs for mounting a cutter. The bit includes a beveled surface formed at a junction of the leading side and the outer surface of each bit leg. The beveled surface is angled relative to a radial plane emenating from the axis of the bit. The angle of the beveled surface is at least 20 degrees, and extends to an inner surface of the bit leg. The bit can also have a layer of hardfacing on the leading, trailing and shirttail surfaces of the bit leg. A diversion finger of hardfacing extends circumferentially to direct cuttings.
摘要翻译： 钻头具有包括头部部分的头部部件，每个头部部分具有具有周向延伸的外表面，前导侧和后侧的依附的位腿。 轴承轴从每个钻头腿向内取向，用于安装切割器。 该钻头包括形成在每个钻头腿的前侧和外表面的接合处的斜面。 倾斜表面相对于从钻头的轴线发出的径向平面成角度。 斜面的角度至少为20度，并且延伸到钻头的内表面。 该位还可以在位腿的前导，尾部和衬衫表面上具有一层硬面。 硬面的转向手指周向延伸以直接切割。
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公开(公告)号：US06253862B1
公开(公告)日：2001-07-03
申请号：US09245702
申请日：1999-02-03
IPC分类号： E21B1000
CPC分类号： E21B10/16 , B23K35/327 , E21B10/50
摘要： An earth-boring bit has rolling cutters, each attached to a bit leg depending from a bit body. Each of the cutters has hardfaced, milled teeth. A spear point is located on one of the cutters. The spear point has a neck that protrudes toward the axis of the bit from a conical portion of the cutter. Blades are located on the spear point with spaces located between the blades. A layer of hardfacing is applied to the entire spear point area including the blades, the spaces and the neck.
摘要翻译： 一个镗孔钻头有滚刀，每个都有一个靠着一点点身体的一个小腿。 每个切割机具有硬面，磨齿。 矛点位于其中一个刀具上。 矛尖具有从切割器的锥形部分朝向钻头轴线突出的颈部。 叶片位于矛尖之间，空间位于叶片之间。 一层硬面施加到包括叶片，空间和颈部的整个矛点区域。
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公开(公告)号：USRE37127E1
公开(公告)日：2001-04-10
申请号：US09137254
申请日：1998-08-19
IPC分类号： C22C2900
CPC分类号： C22C1/051 , B22F1/0003 , B22F1/0096 , B22F9/04 , B22F2999/00 , B23K35/327 , C22C29/08 , C22C33/02 , C23C4/10 , C23C30/005 , E21B10/50 , C22C29/06 , B22F1/0048 , B22F3/10 , B22F9/082
摘要： A hardfacing composition comprises at least 60% by weight of hard metal granules including a quantity of sintered carbide pellets and a quantity of cast carbide pellets. The cast and sintered carbides are selected from the group of carbides consisting of chromium, molybdenum, niobium, tantalum, titanium, tungsten, and vanadium carbides and alloys and mixtures thereof. The balance of the hardfacing composition is matrix metal with traces of flux or deoxidizer, and alloying elements. All percentages given are pre-application ratios.
摘要翻译： 表面硬化组合物包含至少60重量％的硬质金属颗粒，其包括一定数量的烧结碳化物颗粒和一定数量的碳化物颗粒。 铸态和烧结碳化物选自由铬，钼，铌，钽，钛，钨和碳化钒组成的碳化物和合金及其混合物。 耐磨组合物的平衡是具有助焊剂或脱氧剂痕量的基质金属和合金元素。 所有给出的百分比是应用前比例。
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公开(公告)号：US06360832B1
公开(公告)日：2002-03-26
申请号：US09477029
申请日：2000-01-03
IPC分类号： E21B1008
CPC分类号： E21B10/50 , C23C30/005
摘要： An earth-boring bit has hardfacing that has multiple grades and an overlapped portion. One of the layers is of a different grade than the other so as to provide more wear resistance. The other provides more toughness than the wear resistant layer. The more wear resistant layer has a greater volumetric density of carbide particles. The greater density is primarily achieved by using a majority of the particles of smaller dimension than in the less wear resistant hardfacing. The overlapped portion may be on an outer or gage end of the outer row of teeth.
摘要翻译： 一个钻孔钻头具有多个等级和重叠部分的硬面。 其中一层与另一层不同，以提供更多的耐磨性。 另一方面比耐磨层提供更多的韧性。 耐磨层越多，碳化物颗粒的体积密度越大。 较大的密度主要通过使用尺寸较小的大多数颗粒比较少的耐磨硬化面来实现。 重叠部分可以在外排齿的外侧或者规定端上。
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公开(公告)号：US5791423A
公开(公告)日：1998-08-11
申请号：US690887
申请日：1996-08-02
IPC分类号： E21B20060101 , E21B10/16 , E21B10/50
CPC分类号： E21B10/50
摘要： An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter includes a plurality of teeth formed integrally with the cutter and arranged in circumferential rows. Each tooth has inner and outer ends, leading and trailing flanks, and a crest transversely connecting the ends and flanks. A thickness of wear-resistant material is applied over the crest and at least a portion of the ends and flanks of the tooth. An extending layer of wear-resistant material is applied at the intersection of the leading flank and the outer end to provide twice the hard-facing thickness and increased wear-resistance in that area of the tooth that is subjected to the greatest wear.
摘要翻译： 钻头具有一个位体，并且至少一个切割器可旋转地固定到钻头体上。 切割器包括与切割器一体形成并且以圆周排布置的多个齿。 每个齿具有内端和外端，前端和后端，以及横向连接端部和侧面的波峰。 将耐磨材料的厚度施加在牙齿的顶部和牙齿的端部和侧面的至少一部分上。 耐磨材料的延伸层被施加在前端和外端的交叉处，以提供两倍的硬面厚度，并且在经受最大磨损的牙齿区域中增加耐磨性。
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公开(公告)号：US07182162B2
公开(公告)日：2007-02-27
申请号：US10902222
申请日：2004-07-29
申请人： Christopher C. Beuershausen , Raul E. Lema , Ronald Hales , Don Q. Nguyen , Gregory L. Ricks , Chih C. Lin , Terry J. Koltermann , Mark E. Morris , Chris M. McCarty , Ronald L. Jones , James L. Overstreet , Rudolf Carl Otto Pessier
发明人： Christopher C. Beuershausen , Raul E. Lema , Ronald Hales , Don Q. Nguyen , Gregory L. Ricks , Chih C. Lin , Terry J. Koltermann , Mark E. Morris , Chris M. McCarty , Ronald L. Jones , James L. Overstreet , Rudolf Carl Otto Pessier
IPC分类号： E21B10/50
CPC分类号： E21B10/08
摘要： An earth-boring bit has a bit body that includes head sections, each having depending bit legs with a circumferentially extending outer surface, a leading side, and a trailing side. A bearing shaft depends inwardly from each of the bit legs for mounting a cutter. The bit includes a beveled surface formed at a junction of the leading side and the outer surface of each bit leg. The beveled surface is angled relative to a radial plane emenating from the axis of the bit. The angle of the beveled surface is at least 20 degrees, and extends to an inner surface of the bit leg. The bit can also have a layer of hardfacing on the leading, trailing and shirttail surfaces of the bit leg. A diversion finger of hardfacing extends circumferentially to direct cuttings.
摘要翻译： 钻头具有包括头部部分的头部部件，每个头部部分具有具有周向延伸的外表面，前导侧和后侧的依附的位腿。 轴承轴从每个钻头腿向内取向，用于安装切割器。 该钻头包括形成在每个钻头腿的前侧和外表面的接合处的斜面。 倾斜表面相对于从钻头的轴线发出的径向平面成角度。 斜面的角度至少为20度，并且延伸到钻头的内表面。 该位还可以在位腿的前导，尾部和衬衫表面上具有一层硬面。 硬面的转向手指周向延伸以直接切割。
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公开(公告)号：US06206115B1
公开(公告)日：2001-03-27
申请号：US09138239
申请日：1998-08-21
IPC分类号： E21B1050
摘要： An earth-boring bit has a bit body with at least one earth disintegrating cutter mounted on it. The cutter is generally conically shaped and rotatably secured to the body. The cutter has a plurality of teeth formed on it. The teeth have underlying stubs of steel which are integrally formed with and protrude from the cutter. The stubs have flanks which incline toward each other and terminate in a top. A carburized layer is formed on the flanks and the top to a selected depth. The stub has a width across its top from one flank to the other that is less than twice the depth of the carburized layer. A layer of hardfacing is coated on the tops and flanks of the stub, forming an apex for the tooth.
摘要翻译： 一个钻孔钻头具有一个安装在其上的至少一个地面分解刀具的身体。 切割器通常是圆锥形的并且可旋转地固定到主体。 刀具上形成有多个齿。 齿具有与切割器一体形成并突出的钢的底部短棒。 短棒具有彼此倾斜并且终止于顶部的侧面。 在侧面和顶部上形成渗碳层至选定的深度。 短截线从其一侧到另一侧的顶部具有小于渗碳层深度的两倍的宽度。 在该短截线的顶部和侧面上涂覆一层硬化面，形成牙齿的顶点。
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公开(公告)号：US5492186A
公开(公告)日：1996-02-20
申请号：US316665
申请日：1994-09-30
CPC分类号： E21B10/50 , B23K35/327
摘要： An earth boring bit rotatable cutter having a first hardfacing composition of carbide particles selected from the class of cast and macrocrystalline tungsten carbide dispersed in a steel matrix deposited on the gage surface of at least some of the heel row teeth. A substantial portion of these particles are characterized by a high level of abrasion resistance and a lower level of fracture resistance. A second hardfacing composition of carbide particles selected from the class of spherical sintered and spherical cast tungsten is dispersed in a steel matrix deposited over at least the crest and an upper portion of the gage surface to cover the corner that tends to round during drilling. A substantial portion of the particles of this composition are characterized by a high level of fracture resistance and a lower level of abrasion resistance.
摘要翻译： 一种地钻钻头可旋转刀具，其具有选自分散在沉积在至少一些后跟排齿的表面上的钢基体中的铸造和微晶碳化钨类的碳化物颗粒的第一硬化组合物。 这些颗粒的主要部分的特征在于高耐磨性和较低的耐断裂水平。 选自球形烧结和球形铸造钨类的碳化物颗粒的第二表面硬化组合物分散在至少沉积在表面的顶部和表面上部的钢基体中，以覆盖在钻孔期间倾向于圆形的拐角。 该组合物的大部分颗粒的特征在于高水平的耐断裂性和较低的耐磨性。
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10.发明授权Non-magnetic drill string member with non-magnetic hardfacing and method of making the same 有权具有非磁性硬化面的非磁性钻柱构件及其制造方法公开(公告)号：US09303305B2
公开(公告)日：2016-04-05
申请号：US13360363
申请日：2012-01-27
申请人： James L. Overstreet , Jimmy W. Eason , Travis Puzz
发明人： James L. Overstreet , Jimmy W. Eason , Travis Puzz
CPC分类号： C23C4/06 , B23K9/048 , B23K31/025 , C23C4/129 , C23C4/134 , C23C30/00 , E21B17/1085 , Y10T428/25 , Y10T428/31678
摘要： A method for applying a non-magnetic, abrasive, wear-resistant hardfacing material to a surface of a drill string member includes providing a non-magnetic drill string member formed of a non-magnetic material, the drill string member having an outer surface. It also includes providing a non-magnetic hardfacing precursor material comprising a plurality of non-magnetic, sintered carbide pellets and a non-magnetic matrix material; heating a portion of the non-magnetic hardfacing precursor material to a temperature above the melting point of the matrix material to melt the matrix material. It further includes applying the molten non-magnetic matrix material and the plurality of non-magnetic, sintered carbide pellets to the exterior surface of the drill string member; and solidifying the molten non-magnetic matrix material to form a layer of a non-magnetic hardfacing material having a plurality of non-magnetic, sintered carbide pellets dispersed in the hardfacing material.
摘要翻译： 一种将非磁性，耐磨损的耐磨表面材料施加到钻柱构件的表面的方法包括提供由非磁性材料形成的非磁性钻柱构件，所述钻柱构件具有外表面。 它还包括提供包含多个非磁性烧结碳化物颗粒和非磁性基质材料的非磁性表面硬化前体材料; 将非磁性表面硬化前体材料的一部分加热到高于基体材料的熔点的温度以熔化基体材料。 还包括将熔融非磁性基体材料和多个非磁性烧结碳化物颗粒施加到钻柱构件的外表面; 并固化熔融的非磁性基体材料以形成具有分散在表面硬化材料中的多个非磁性烧结碳化物粒子的非磁性表面硬化材料层。
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