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    Polycrystalline Diamond Constructions Having Improved Thermal Stability
    3.
    发明申请
    Polycrystalline Diamond Constructions Having Improved Thermal Stability 审中-公开
    具有改善热稳定性的多晶金刚石结构

    公开(公告)号：US20090173015A1

    公开(公告)日：2009-07-09

    申请号：US12399369

    申请日：2009-03-06

    Applicant: Madapusi K. Keshavan ,  Anthony Griffo ,  Yuelin Shen ,  Youhe Zhang

    Inventor： Madapusi K. Keshavan ,  Anthony Griffo ,  Yuelin Shen ,  Youhe Zhang

    IPC: E21B10/46 ,  C04B37/00 ,  B01J3/06

    CPC classification number: B24D18/00 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C04B35/645 ,  C04B37/026 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/61 ,  Y10T156/10 ,  Y10T428/31678

    Abstract: 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.

    Abstract translation: 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。

    Thermally stable ultra-hard material compact construction
    5.
    发明授权
    Thermally stable ultra-hard material compact construction 有权
    热稳定超硬材料结构紧凑

    公开(公告)号：US07377341B2

    公开(公告)日：2008-05-27

    申请号：US11140482

    申请日：2005-05-26

    Applicant: Stewart N. Middlemiss ,  J. Daniel Belnap ,  Nephi Mourik ,  Thomas W. Oldham ,  Anthony Griffo

    Inventor： Stewart N. Middlemiss ,  J. Daniel Belnap ,  Nephi Mourik ,  Thomas W. Oldham ,  Anthony Griffo

    IPC: E21B10/26

    CPC classification number: E21B10/567 ,  B22F7/062 ,  B22F2998/10 ,  C22C26/00 ,  E21B10/5735 ,  B22F3/14 ,  B22F3/10

    Abstract: Thermally stable ultra-hard compact constructions of this invention comprise an ultra-hard material body that includes a thermally stable region positioned adjacent a surface of the body. The thermally stable region is formed from consolidated materials that are thermally stable at temperatures greater than about 750° C. The thermally stable region can occupy a partial portion of or the entire ultra-hard material body. The ultra-hard material body can comprise a composite of separate ultra-hard material elements that each form different regions of the body, at least one of the regions being thermally stable. The ultra-hard material body is attached to a desired substrate, an intermediate material is interposed between the body and the substrate, and the intermediate material joins the substrate and body together by high pressure/high temperature process.

    Abstract translation: 本发明的热稳定的超硬结构包括超硬材料体，其包括邻近本体表面定位的热稳定区域。 热稳定区域由在大于约750℃的温度下是热稳定的固结材料形成。热稳定区域可以占据超硬材料体的一部分或全部。 超硬材料体可以包括单独的超硬材料元件的复合材料，其各自形成身体的不同区域，至少一个区域是热稳定的。 超硬材料体附接到所需的基板上，中间材料插入在主体和基板之间，中间材料通过高压/高温工艺将基板和主体结合在一起。

    THERMALLY STABLE DIAMOND POLYCRYSTALLINE DIAMOND CONSTRUCTIONS
    6.
    发明申请
    THERMALLY STABLE DIAMOND POLYCRYSTALLINE DIAMOND CONSTRUCTIONS 有权
    耐高温金刚石多晶金刚石结构

    公开(公告)号：US20070284152A1

    公开(公告)日：2007-12-13

    申请号：US11776389

    申请日：2007-07-11

    Applicant: Ronald Eyre ,  Anthony Griffo ,  Thomas Oldham

    Inventor： Ronald Eyre ,  Anthony Griffo ,  Thomas Oldham

    IPC: E21B10/46

    CPC classification number: E21B10/567 ,  B22F2003/244 ,  B22F2005/001 ,  B22F2998/00 ,  C22C26/00 ,  Y10T407/27 ,  Y10T428/252 ,  Y10T428/265 ,  Y10T428/30 ,  B22F7/06

    Abstract: Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside portion of the diamond body, and the diamond body comprises a first region that is substantially free of a catalyst material, and a second region that includes the catalyst material. The diamond body first region extends from the working surface to depth of at least about 0.02 mm to a depth of less than about 0.09 mm. The diamond body includes diamond crystals having an average diamond grain size of greater than about 0.02 mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body.

    Abstract translation: 热稳定的金刚石构造包括具有多个结合的金刚石晶体和设置在晶体之间的多个间隙区域的金刚石体。 金属基底附着在金刚石体上。 工作表面沿着金刚石体的外部部分定位，并且金刚石体包括基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 金刚石体第一区域从工作表面延伸至至少约0.02mm的深度至小于约0.09mm的深度。 金刚石体包括具有大于约0.02mm的平均金刚石晶粒尺寸的金刚石晶体，并且基于金刚石体的总体积包含至少85体积％的金刚石。

    POLYCRYSTALLINE DIAMOND CARBIDE COMPOSITES
    9.
    发明申请
    POLYCRYSTALLINE DIAMOND CARBIDE COMPOSITES 有权
    多晶金刚石碳化物复合材料

    公开(公告)号：US20070193782A1

    公开(公告)日：2007-08-23

    申请号：US11743108

    申请日：2007-05-01

    Applicant: Zhigang Fang ,  Anthony Griffo ,  Brian White ,  Stewart Middlemiss ,  Ronald Eyre

    Inventor： Zhigang Fang ,  Anthony Griffo ,  Brian White ,  Stewart Middlemiss ,  Ronald Eyre

    IPC: E21B10/36

    CPC classification number: E21B10/567 ,  B22F2005/001 ,  B22F2998/10 ,  C09K3/1418 ,  C09K3/1436 ,  C22C26/00 ,  C22C2026/005 ,  E21B10/52 ,  E21B10/56 ,  B22F1/0096 ,  B22F1/025 ,  B22F1/0003 ,  B22F3/15 ,  B22F3/10

    Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.

    Abstract translation: 本发明的多晶金刚石（PCD）碳化物复合材料具有包含由PCD，多晶立方氮化硼或其混合物形成的多个颗粒的微结构，其分布在基本上包围颗粒的基本上连续的第二基质区域中，并形成 从金属陶瓷材料。 在一个示例性实施例中，颗粒是多晶金刚石，金属陶瓷材料是硬质合金。 与常规纯PCD材料相比，本发明的PCD碳化物复合材料显示出改进的断裂韧性和耐崩裂性能，而不会显着降低耐磨性。

    Rotary cone bit with functionally-engineered composite inserts
    10.
    发明授权
    Rotary cone bit with functionally-engineered composite inserts 有权
    带有功能化设计的复合刀片的旋转圆锥钻头

    公开(公告)号：US07235211B2

    公开(公告)日：2007-06-26

    申请号：US10454374

    申请日：2003-06-03

    Applicant: Anthony Griffo ,  Zhigang Fang ,  Robert Denton

    Inventor： Anthony Griffo ,  Zhigang Fang ,  Robert Denton

    IPC: B22F7/04

    CPC classification number: B22F7/06 ,  B22F2005/001 ,  B22F2999/00 ,  B33Y80/00 ,  C23C30/005 ,  E21B10/52 ,  Y10T428/2993 ,  B22F3/22

    Abstract: A rotary cone bit, having a functionally-engineered surface of this invention, comprises a bit body having at least one leg extending therefrom, and a cone that is rotatably disposed on the leg. The cone typically comprises a plurality of cutting elements that project outwardly therefrom. The cutting elements comprises a cermet material selected from the group consisting of refractory metal carbides, nitrides, borides, carbonitrides and mixtures thereof. A functionally-engineered material is disposed over a surface portion of at least one of the cutting elements to form a wear resistant surface thereon. The wear resistant surface has a hardness that is different than that of the underlying cutting element. The wear resistant surface is provided by forming a conformable material mixture by combining one or more powders selected from the group consisting of cermets, carbides, borides, nitrides, carbonitrides, refractory metals, Co, Fe, Ni, and combinations thereof, with an applying agent. The applied material mixture is pressurized under conditions of elevated temperature to consolidate and sinter the material mixture, thereby forming the wear resistant surface. The material mixture is consolidated and sintered in a manner that avoids unwanted material migration between the applied material mixture and substrate, thereby providing a fully-densified wear surface having desired properties of hardness and/or fracture toughness.

    Abstract translation: 具有本发明的功能设计表面的旋转圆锥头包括具有从其延伸的至少一个腿的钻头体和可旋转地设置在腿上的锥体。 锥体通常包括从其向外突出的多个切割元件。 切割元件包括选自难熔金属碳化物，氮化物，硼化物，碳氮化物及其混合物的金属陶瓷材料。 功能性设计的材料设置在至少一个切割元件的表面部分上，以在其上形成耐磨表面。 耐磨表面的硬度与底层切割元件的硬度不同。 通过将选自金属陶瓷，碳化物，硼化物，氮化物，碳氮化物，难熔金属，Co，Fe，Ni及其组合的一种或多种粉末与应用 代理商 将所施加的材料混合物在高温条件下加压，以固化和烧结材料混合物，从而形成耐磨表面。 材料混合物被固结和烧结，以避免在所施加的材料混合物和基底之间不期望的材料迁移，从而提供具有所需硬度和/或断裂韧性​​性能的完全致密的磨损表面。

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