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公开(公告)号：US5780139A
公开(公告)日：1998-07-14
申请号：US715437
申请日：1996-09-18
CPC分类号： B30B11/004 , B01J3/067 , B22F5/007 , B30B15/065 , Y10T428/24983 , Y10T428/252 , Y10T428/31678
摘要： An anvil for use in ultra high pressure presses capable of operating in the pressure ranges where diamonds, polycrystalline diamond composites and cubic boron nitride are stable, fabricated by diffusion bonding together a plurality of cemented tungsten carbide layers. The anvil has a working layer adjacent to the highest pressure of the press with the remaining plurality of layers behind the working layer for support. The working layer has a higher hardness than the supporting layers and the supporting layers each have higher toughness than the working layer.
摘要翻译： 用于能够在金刚石，多晶金刚石复合材料和立方氮化硼稳定的压力范围内工作的超高压压机的砧座通过将多个胶结碳化钨层扩散结合在一起而制造。 砧座具有与压力机的最高压力相邻的工作层，在工作层后面的剩余的多个层用于支撑。 工作层具有比支撑层更高的硬度，并且支撑层各自具有比工作层更高的韧性。
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公开(公告)号：US5833021A
公开(公告)日：1998-11-10
申请号：US615860
申请日：1996-03-12
申请人： Graham Mensa-Wilmot , Ghanshyam Rai , Madapusi K. Keshavan , David Truax , Kuttaripalayam T. Kembaiyan
发明人： Graham Mensa-Wilmot , Ghanshyam Rai , Madapusi K. Keshavan , David Truax , Kuttaripalayam T. Kembaiyan
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/46
CPC分类号： E21B10/55 , E21B10/567
摘要： A polycrystalline diamond cutter having a coating of refractory material applied to the polycrystalline diamond surface increases the operational life of the cutter. The coating typically has a thickness in the range of from 0.1 to 30 .mu.m and may be made from titanium nitride, titanium carbide, titanium carbonitride, titanium aluminum carbonitride, titanium aluminum nitride, boron carbide, zirconium carbide, chromium carbide, chromium nitride, or any of the transition metals or Group IV metals combined with either silicon, aluminum, boron, carbon, nitrogen or oxygen. The coating can be applied using conventional plating or other physical or chemical deposition techniques.
摘要翻译： 具有施加到多晶金刚石表面的耐火材料涂层的多晶金刚石切割器增加了切割器的使用寿命。 涂层通常具有0.1-30μm的厚度，并且可以由氮化钛，碳化钛，碳氮化钛，碳氮化钛铝，氮化铝钛，碳化硼，碳化锆，碳化铬，氮化铬， 或与硅，铝，硼，碳，氮或氧结合的任何过渡金属或IV族金属。 可以使用常规电镀或其他物理或化学沉积技术来涂覆涂层。
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公开(公告)号：US5766394A
公开(公告)日：1998-06-16
申请号：US568276
申请日：1995-12-06
IPC分类号： B24D3/00 , B24D3/06 , B24D3/28 , B24D18/00 , B32B18/00 , C04B41/87 , C04B41/89 , B32B31/26 , B22F1/00 , B22F3/14
CPC分类号： B24D18/0009 , B24D3/06 , B24D3/28 , Y10S76/11 , Y10S76/12 , Y10T156/1067 , Y10T156/1075
摘要： A polycrystalline diamond layer is bonded to a cemented metal carbide substrate by this process. A layer of dense high shear compaction material including diamond or cubic boron nitride particles is placed adjacent to a metal carbide substrate. The particles of diamond have become rounded instead of angular due to high shear compaction in a multiple roller process. The volatiles in the high shear compaction material are removed and binder decomposed at high temperature, for example, 950.degree. C., leaving residual amorphous carbon or graphite in a layer of ultra hard material particles on the carbide substrate. The substrate and layer assembly is then subjected to a high pressure, high temperature process, thereby sintering the ultra hard particles to each other to form a polycrystalline ultra hard layer bonded to the metal carbide substrate. The layer of high shear compaction material is also characterized by a particle size distribution including larger and smaller particles that are distributed uniformly throughout the layer.
摘要翻译： 通过该方法将多晶金刚石层结合到胶结金属碳化物基底。 将包括金刚石或立方氮化硼颗粒的致密高剪切压实材料层放置在与金属碳化物基底相邻的位置。 由于多辊工艺中的高剪切压实，金刚石颗粒已经变圆而不是角度。 除去高剪切压实材料中的挥发物，并在高温例如950℃下分解粘合剂，在碳化物基体上留下残留的无定形碳或石墨的超硬材料颗粒层。 然后将基板和层组件进行高压高温处理，从而将超硬颗粒彼此烧结以形成结合到金属碳化物基底的多晶超硬层。 高剪切压实材料层的特征还在于粒度分布包括均匀分布在整个层中的越来越小的颗粒。
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公开(公告)号：US5830813A
公开(公告)日：1998-11-03
申请号：US792959
申请日：1997-01-22
IPC分类号： B23B27/14 , B24D3/00 , B24D18/00 , C04B35/5831 , C09K3/14 , C22C26/00 , C04B35/5835
CPC分类号： C04B35/5831 , C09K3/1436 , C22C26/00 , Y10T428/2991 , Y10T428/2993
摘要： A polycrystalline cubic boron nitride cutting tool is from 50 to 85% by weight cubic boron nitride crystals bonded together as a polycrystalline mass. A supporting phase commingled with the polycrystalline cubic boron nitride is made from 15 to 40% by weight of a refractory material which is preferably titanium carbonitride or titanium aluminum carbonitride. The starting composition also comprises from 4 to 10% by weight of Co.sub.2 Al.sub.9. Mixed powders of these ingredients are treated in ammonia at a temperature in the range of from 1000.degree. to 1250.degree. C., which significantly increases the nitrogen content and reduces carbon content of titanium carbonitride. Instead of mixed powders of the starting materials, coated particles may be used such as cubic boron nitride coated with titanium carbonitride, or titanium carbonitride coated with cobalt, aluminum or cobalt aluminide. Hexagonal boron nitride may be substituted as a starting material for a portion of the cubic boron nitride.
摘要翻译： 多晶立方氮化硼切割工具是以多晶体结合在一起的50至85重量％的立方氮化硼晶体。 与多晶立方氮化硼混合的支撑相由15至40重量％的耐火材料制成，耐火材料优选为碳氮化钛或碳氮化钛铝。 起始组合物还包含4至10重量％的Co 2 Al 9。 这些成分的混合粉末在氨水中在1000〜1250℃的温度范围内处理，显着提高了氮含量，降低了碳氮化钛的碳含量。 代替起始材料的混合粉末，可以使用涂覆的颗粒，例如涂覆有碳氮化钛的立方氮化硼或涂覆有钴，铝或钴铝的碳氮化钛。 六方氮化硼可以被取代为一部分立方氮化硼的起始材料。
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公开(公告)号：US5639285A
公开(公告)日：1997-06-17
申请号：US440773
申请日：1995-05-15
CPC分类号： C04B35/5831 , C09K3/1436 , C22C26/00 , Y10T428/2991 , Y10T428/2993
摘要： A polycrystalline cubic boron nitride cutting tool is from 50 to 85% by weight cubic boron nitride crystals bonded together as a polycrystalline mass. A supporting phase commingled with the polycrystalline cubic boron nitride is made from 15 to 40% by weight of a refractory material which is preferably titanium carbonitride or titanium aluminum carbonitride. The starting composition also comprises from 4 to 10% by weight of Co.sub.2 Al.sub.9. Mixed powders of these ingredients are treated in ammonia at a temperature in the range of from 1000.degree. to 1250.degree. C., which significantly increases the nitrogen content and reduces carbon content of titanium carbonitride. Instead of mixed powders of the starting materials, coated particles may be used such as cubic boron nitride coated with titanium carbonitride, or titanium carbonitride coated with cobalt, aluminum or cobalt aluminide. Hexagonal boron nitride may be substituted as a starting material for a portion of the cubic boron nitride.
摘要翻译： 多晶立方氮化硼切割工具是以多晶体结合在一起的50至85重量％的立方氮化硼晶体。 与多晶立方氮化硼混合的支撑相由15至40重量％的耐火材料制成，耐火材料优选为碳氮化钛或碳氮化钛铝。 起始组合物还包含4至10重量％的Co 2 Al 9。 这些成分的混合粉末在氨水中在1000〜1250℃的温度范围内处理，显着提高了氮含量，降低了碳氮化钛的碳含量。 代替起始材料的混合粉末，可以使用涂覆的颗粒，例如涂覆有碳氮化钛的立方氮化硼或涂覆有钴，铝或钴铝的碳氮化钛。 六方氮化硼可以被取代为一部分立方氮化硼的起始材料。
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公开(公告)号：US10132121B2
公开(公告)日：2018-11-20
申请号：US13085089
申请日：2011-04-12
摘要： A method for making a polycrystalline diamond construction is disclosed, which includes the steps of treating a polycrystalline diamond body having a plurality of bonded together diamond crystals and a solvent catalyst material to remove the solvent catalyst material therefrom, wherein the solvent catalyst material is disposed within interstitial regions between the bonded together diamond crystals, replacing the removed solvent catalyst material with a replacement material, and treating the body having the replacement material to remove substantially all of the replacement material from a first region of the body extending a depth from a body surface, and allowing the remaining amount of the replacement material to reside in a second region of the body that is remote from the surface.
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7.发明申请CUTTING ELEMENTS WITH RE-PROCESSED THERMALLY STABLE POLYCRYSTALLINE DIAMOND CUTTING LAYERS, BITS INCORPORATING THE SAME, AND METHODS OF MAKING THE SAME 有权具有再加工的热稳定的多晶金刚石切割层的切割元件，与其相同的部件及其制造方法公开(公告)号：US20100282519A1
公开(公告)日：2010-11-11
申请号：US12775402
申请日：2010-05-06
申请人： Youhe Zhang , Yuelin Shen , Madapusi K. Keshavan
发明人： Youhe Zhang , Yuelin Shen , Madapusi K. Keshavan
CPC分类号： E21B10/55 , B22F7/062 , B22F2005/001 , B22F2007/068 , B22F2999/00 , B23P6/00 , B23P15/28 , C22C26/00 , C22C2204/00 , E21B10/567 , Y10T29/49732 , B22F3/26 , B22F3/14
摘要： A method of re-processing used TSP material layers to form cutting elements, bits with such cutting elements mounted on their bodies, and bits having re-processed TSP material layers attached to their bodies, as well as such cutting elements and bits are provided. The method includes providing a used TSP material cutting element having a TSP material layer and substrate, or a bit having a TSP material layer attached to the bit, removing the used TSP material layer from the cutting element or bit, cutting the used TSP material layer to a new shape, if necessary, optionally re-leaching the used TSP layer and re-using the TSP material layer to form a cutting element, or in forming a bit body. The formed cutting element may be mounted on a bit body.
摘要翻译： 提供了一种重新处理使用的TSP材料层以形成切割元件的方法，具有安装在其主体上的这种切割元件的钻头以及连接到其主体上的具有重新处理的TSP材料层的钻头以及这些切割元件和钻头。 该方法包括提供具有TSP材料层和衬底的已使用的TSP材料切割元件，或者具有附接到该钻头的TSP材料层的钻头，从切割元件或钻头中去除所使用的TSP材料层，切割所使用的TSP材料层 如果需要，可选地再次浸出所使用的TSP层并重新使用TSP材料层以形成切割元件，或者形成钻头体。 成形的切割元件可以安装在钻头体上。
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公开(公告)号：US07770672B2
公开(公告)日：2010-08-10
申请号：US12120896
申请日：2008-05-15
CPC分类号： E21B10/54
摘要： A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.
摘要翻译： 一种具有位于其上的至少一个刀片的钻头体的钻头，设置在所述至少一个刀片上的至少一个切割器凹槽，设置在所述至少一个切割器凹槽中的至少一个切割器，至少施加到所述至少一个刀片的选定部分的硬化面 显示和描述钻头。 表面硬化包括设置在钻头的选定部分上的第一表面硬化层，设置在第一表面硬化层上的第二表面硬化层，其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。
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公开(公告)号：US07703559B2
公开(公告)日：2010-04-27
申请号：US11526558
申请日：2006-09-25
申请人： Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
发明人： Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
IPC分类号： E21B10/46
CPC分类号： E21B10/52 , E21B10/5673 , E21B10/573 , Y10T29/49947 , Y10T29/49963
摘要： A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element. A portion of the inner rotatable cutting element is disposed in the outer support element, where the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and where a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches.
摘要翻译： 一种用于钻头的切割元件，其包括至少具有底部和侧部的外部支撑元件; 和内部可旋转切割元件。 内部可旋转切割元件的一部分设置在外部支撑元件中，其中内部可旋转切割元件包括基底和设置在基底的上表面上的厚度至少为0.050英寸的金刚石切割面; 并且其中从金刚石切割面的上表面到内部可旋转切割元件和外部支撑元件之间的支撑表面的距离为0至约0.300英寸。
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10.发明申请公开(公告)号：US20090173015A1
公开(公告)日：2009-07-09
申请号：US12399369
申请日：2009-03-06
申请人： Madapusi K. Keshavan , Anthony Griffo , Yuelin Shen , Youhe Zhang
发明人： Madapusi K. Keshavan , Anthony Griffo , Yuelin Shen , Youhe Zhang
CPC分类号： B24D18/00 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , C04B35/645 , C04B37/026 , C04B2237/363 , C04B2237/401 , C04B2237/61 , Y10T156/10 , Y10T428/31678
摘要： Polycrystalline diamond constructions include a diamond body comprising a matrix phase of bonded together diamond crystals formed at high pressure/high temperature conditions with a catalyst material. The sintered body is treated remove the catalyst material disposed within interstitial regions, rendering it substantially free of the catalyst material used to initially sinter the body. Accelerating techniques can be used to remove the catalyst material. The body includes an infiltrant material disposed within interstitial regions in a first region of the construction. The body includes a second region adjacent the working surface and that is substantially free of the infiltrant material. The infiltrant material can be a Group VIII material not used to initially sinter the diamond body. A metallic substrate is attached to the diamond body, and can be the same or different from a substrate used as a source of the catalyst material used to initially sinter the diamond body.
摘要翻译： 多晶金刚石结构包括金刚石体，其包括在高压/高温条件下与催化剂材料结合的金刚石晶体的基体相。 处理烧结体去除设置在间隙区域内的催化剂材料，使其基本上不含用于初始烧结体的催化剂材料。 可以使用加速技术来除去催化剂材料。 身体包括设置在构造的第一区域中的间隙区域内的渗透材料。 主体包括邻近工作表面的第二区域，其基本上不含渗透材料。 渗透材料可以是不用于初始烧结钻石体的VIII族材料。 金属基底附接到金刚石体，并且可以与用作初始烧结金刚石体的催化剂材料的源的基底相同或不同。
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