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    A SUPERHARD STRUCTURE AND METHOD OF MAKING SAME
    1.
    发明申请
    A SUPERHARD STRUCTURE AND METHOD OF MAKING SAME 审中-公开
    超级结构及其制造方法

    公开(公告)号：WO2012089567A1

    公开(公告)日：2012-07-05

    申请号：PCT/EP2011/073477

    申请日：2011-12-20

    Applicant: ELEMENT SIX ABRASIVES S.A. ,  ADIA, Moosa Mahomed ,  DAVIES, Geoffrey John ,  BOWES, David Christian

    Inventor： ADIA, Moosa Mahomed ,  DAVIES, Geoffrey John ,  BOWES, David Christian

    IPC: C22C26/00 ,  B22F7/06

    CPC classification number: B24D3/06 ,  B22F7/062 ,  C22C26/00

    Abstract: A superhard structure comprises a body of polycrystalline superhard material comprising a first region and a second region. The second region is adjacent an exposed surface of the superhard structure and comprises a diamond material or cubic boron nitride with a density greater than 3.4x103 kilograms per cubic metre when the second region comprises diamond material. The material(s) forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that this difference induces compression in the second region adjacent the exposed surface. The first/a further region has the highest coefficient of thermal expansion of the polycrystalline body and is separated in part from a peripheral free surface of the body by the second region or one or more further regions formed of a material(s) of a lower coefficient of thermal expansion. The regions comprise a plurality of grains of polycrystalline superhard material. The second region is peripherally discontinuous with a gap therein through which a portion of the region formed of the material of highest coefficient of thermal expansion extends to the free surface of the superhard structure. There is also disclosed a method for making such a structure.

    Abstract translation: 超硬结构包括多晶超硬材料体，其包括第一区域和第二区域。 第二区域与超硬结构的暴露表面相邻，并且当第二区域包括金刚石材料时，其包括密度大于3.4×10 3千克/立方米的金刚石材料或立方氮化硼。 形成第一和第二区域的材料具有热膨胀系数的差异，第一和第二区域被布置成使得该差异在邻近暴露表面的第二区域中引起压缩。 第一/另一区域具有最高的多晶体的热膨胀系数，并且通过第二区域与本体的周边自由表面部分地分离，或者由下部的材料形成的一个或多个其它区域 热膨胀系数。 这些区域包括多个多晶超硬材料颗粒。 第二区域周向不连续地具有间隙，通过该间隙，由具有最高热膨胀系数的材料形成的区域的一部分延伸到超硬结构的自由表面。 还公开了制造这种结构的方法。

    A SUPERHARD STRUCTURE AND METHOD OF MAKING SAME
    2.
    发明申请
    A SUPERHARD STRUCTURE AND METHOD OF MAKING SAME 审中-公开
    超级结构及其制造方法

    公开(公告)号：WO2012089566A1

    公开(公告)日：2012-07-05

    申请号：PCT/EP2011/073473

    申请日：2011-12-20

    Applicant: ELEMENT SIX ABRASIVES S.A. ,  ADIA, Moosa Mahomed ,  DAVIES, Geoffrey John ,  BOWES, David Christian

    Inventor： ADIA, Moosa Mahomed ,  DAVIES, Geoffrey John ,  BOWES, David Christian

    IPC: B22F7/06 ,  C22C26/00

    CPC classification number: C22C26/00 ,  B22F7/062 ,  B24D18/0009 ,  C22C2026/007 ,  E21B10/567 ,  Y10T428/24942

    Abstract: A superhard structure comprises a body of polycrystalline superhard material comprising a first region and a second region, the second region being adjacent an exposed surface of the superhard structure, the second region comprising a diamond material or cubic boron nitride, the density of the second region being greater than 3.4x103 kilograms per cubic metre when the second region comprises diamond material. The material(s) forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that this difference induces compression in the second region adjacent the exposed surface. The first/a further region has the highest coefficient of thermal expansion of the polycrystalline body and is separated from a peripheral free surface of the body of polycrystalline superhard material by the second region or one or more further regions formed of a material or materials of a lower coefficient of thermal expansion. The regions comprise a plurality of grains of polycrystalline superhard material. There is also disclosed a method of making such a material.

    Abstract translation: 超硬结构包括多晶超硬材料体，其包括第一区域和第二区域，第二区域与超硬结构的暴露表面相邻，第二区域包括金刚石材料或立方氮化硼，第二区域的密度 当第二区域包括金刚石材料时，其每立方米大于3.4×103公斤。 形成第一和第二区域的材料具有热膨胀系数的差异，第一和第二区域被布置成使得该差异在邻近暴露表面的第二区域中引起压缩。 第一/另一区域具有最高的多晶体体系热膨胀系数，并且通过第二区域与多晶超硬材料体的周边自由表面分离，或者由一种或多种材料形成的一个或多个其它区域 较低的热膨胀系数。 这些区域包括多个多晶超硬材料颗粒。 还公开了制造这种材料的方法。

    POLYCRYSTALLINE DIAMOND STRUCTURE
    3.
    发明申请
    POLYCRYSTALLINE DIAMOND STRUCTURE 审中-公开
    多晶金刚石结构

    公开(公告)号：WO2011069637A1

    公开(公告)日：2011-06-16

    申请号：PCT/EP2010/007425

    申请日：2010-12-07

    Applicant: ELEMENT SIX LIMITED ,  ELEMENT SIX (Production) (Pty) Ltd ,  SMALLMAN, Clint Guy ,  ADIA, Moosa Mahomed ,  LAI SANG, Lai Hong

    Inventor： SMALLMAN, Clint Guy ,  ADIA, Moosa Mahomed ,  LAI SANG, Lai Hong

    IPC: B22F7/06 ,  C22C26/00 ,  E21B10/567 ,  E21B10/573

    CPC classification number: E21B10/567 ,  C22C26/00 ,  E21B10/5735

    Abstract: A PCD structure comprising a first region, in a state of residual compressive stress, and a second region in a state of residual tensile stress adjacent the first region; the first and second regions each formed of respective PCD grades and directly bonded to each other by intergrowth of diamond grains, the PCD grades having transverse rupture strength (TRS) of at least 1,200 MPa. A third region in a state of residual compressive stress may also be provided such that the second region is disposed between the first and third regions and is bonded to the first and third regions by intergrowth of diamond grains.

    Abstract translation: 一种PCD结构，包括处于残余压缩应力状态的第一区域和处于与所述第一区域相邻的残余拉伸应力状态的第二区域; 所述第一和第二区域各自由相应的PCD等级形成并且通​​过金刚石晶粒的共生直接彼此结合，所述PCD等级具有至少1200MPa的横向断裂强度（TRS）。 还可以提供处于残余压缩应力状态的第三区域，使得第二区域设置在第一和第三区域之间，并且通过金刚石晶粒的共生结合到第一和第三区域。

    CUTTING ELEMENTS
    4.
    发明申请
    CUTTING ELEMENTS 审中-公开
    切割元素

    公开(公告)号：WO2008102324A1

    公开(公告)日：2008-08-28

    申请号：PCT/IB2008/050649

    申请日：2008-02-22

    Applicant: ELEMENT SIX (PRODUCTION) (PTY) LTD ,  TANK, Klaus ,  ADIA, Moosa Mahomed ,  MOROZOV, Konstantin Evgenievich

    Inventor： TANK, Klaus ,  ADIA, Moosa Mahomed ,  MOROZOV, Konstantin Evgenievich

    IPC: E21B10/567

    CPC classification number: E21B10/567

    Abstract: The invention is for a cutting element comprising a layer or table (10) of superhard abrasive material presenting a working surface (14,), a side surface (16,) and a peripheral edge (18) between the working surface (14) and the side surface (16). The peripheral edge (18) is defined by a leading edge chamfer (22) having an edge contiguous with the working surface (14), a trailing edge chamfer (24) and a break-in chamfer (20) between the leading edge chamfer (22) and the trailing chamfer (24). The trailing chamfer (24) is contiguous with the break-in chamfer (20) along a line of intersection (26) which defines a cutting edge for the break-in chamfer (20). The leading edge (22) chamfer may comprise more than one section and its length may be greater than the length of the break-in chamfer (20).

    Abstract translation: 本发明涉及一种切割元件，其包括在工作表面（14）和工作表面（14）之间具有工作表面（14），侧表面（16）和周边边缘（18）的超硬磨料材料的层或表（10） 侧表面（16）。 周缘（18）由具有与工作表面（14）邻接的边缘的前缘倒角（22）和前缘倒角（25）之间的后缘倒角（24）和入口倒角（20）限定， 22）和后倒角（24）。 后倒角（24）沿着限定用于折入倒角（20）的切割边缘的交叉线（26）与断开倒角（20）邻接。 前缘（22）倒角可以包括多于一个部分，并且其长度可以大于断开倒角（20）的长度。

    A METHOD OF MAKING A COMPOSITE ABRASIVE COMPACT
    6.
    发明申请
    A METHOD OF MAKING A COMPOSITE ABRASIVE COMPACT 审中-公开
    复合材料复合材料的制备方法

    公开(公告)号：WO0234437A3

    公开(公告)日：2002-08-22

    申请号：PCT/IB0101922

    申请日：2001-10-15

    Applicant: DE BEERS IND DIAMOND ,  TANK KLAUS ,  ADIA MOOSA MAHOMED ,  ACHILLES ROY DERRICK ,  DANIEL PAUL MACHAEL

    Inventor： TANK KLAUS ,  ADIA MOOSA MAHOMED ,  ACHILLES ROY DERRICK ,  DANIEL PAUL MACHAEL

    IPC: B24D3/00 ,  B22F3/15 ,  B22F7/00 ,  B22F7/06 ,  B22F7/08 ,  B24D3/06

    CPC classification number: B22F7/06 ,  B22F2999/00 ,  C22C26/00 ,  B22F1/0014

    Abstract: There is provided a method of making a composite abrasive compact which comprises an abrasive compact (30) bonded to a substrate (32). The abrasive compact will generally be a diamond compact and the substrate will generally be a cemented carbide substrate. The composite abrasive compact is made under known conditions of elevated temperature and pressure suitable for producing abrasive compacts. The method is characterised by the mass of abrasive particles from which the abrasive compact is made. This mass has three regions which are: (i) an inner region (36), adjacent the surface of the substrate (32) on which the mass is provided, containing particles having at least four different average particle sizes; (ii) an outer region (40) containing particles having at least three different average particle sizes; and (iii) an intermediate region (38) between the first and second regions.

    Abstract translation: 提供了一种制备复合磨料压块的方法，该复合研磨压实体包括结合到基底（32）上的研磨压块（30）。 研磨压块通常将是金刚石压块，并且基底通常将是硬质合金基底。 复合磨料压块在已知的适于生产磨料压块的高温和高压条件下制成。 该方法的特征在于制造磨料压块的磨料颗粒的质量。 该质量体具有以下三个区域：（i）邻近其上提供质量的基底（32）的表面的内部区域（36），其包含具有至少四种不同平均粒度的颗粒; （ii）含有至少三种不同平均粒径的颗粒的外部区域（40）; 和（iii）在第一和第二区域之间的中间区域（38）。

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