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    Deep leach pressure vessel for shear cutters
    3.
    发明专利
    Deep leach pressure vessel for shear cutters 未知

    公开(公告)号：GB2488675B8

    公开(公告)日：2014-03-12

    申请号：GB201203893

    申请日：2012-03-05

    Applicant: SMITH INTERNATIONAL

    Inventor： BELNAP DANIEL J ,  CARIVEAU PETER THOMAS ,  CORBETT LOEL ,  EYRE RONALD K

    IPC: E21B10/567 ,  C04B41/53 ,  E21B10/55

    Abstract: A system for producing thermally stable cutting elements may include a heat source, a pressure vessel, at least one polycrystalline diamond body attached to a carbide substrate, and a leaching agent is disclosed, wherein the heat source includes a container comprising at least one receiving mechanism and at least one retention mechanism, and wherein the carbide substrate is disposed in the at least one receiving mechanism of the pressure vessel, and wherein the leaching agent is disposed in the pressure vessel, and wherein the leaching agent removes the catalyzing material from the interstitial spaces interposed between the diamond particles of the at least one polycrystalline diamond body, and wherein the at least one retention mechanism of the pressure vessel seals at least a portion of the carbide substrate into the at least one receiving mechanism and prevents the leaching agent from contacting at least a portion of the carbide substrate.

    Deep leach pressure vessel for shear cutters
    4.
    发明专利
    Deep leach pressure vessel for shear cutters 未知

    公开(公告)号：GB2488675B

    公开(公告)日：2013-09-25

    申请号：GB201203893

    申请日：2012-03-05

    Applicant: SMITH INTERNATIONAL

    Inventor： BELNAP J DANIEL ,  CARIVEAU PETER THOMAS ,  CORBETT LOEL ,  EYRE RONALD K

    IPC: E21B10/567 ,  C04B41/53 ,  E21B10/55

    Abstract: A system for producing thermally stable cutting elements may include a heat source, a pressure vessel, at least one polycrystalline diamond body attached to a carbide substrate, and a leaching agent is disclosed, wherein the heat source includes a container comprising at least one receiving mechanism and at least one retention mechanism, and wherein the carbide substrate is disposed in the at least one receiving mechanism of the pressure vessel, and wherein the leaching agent is disposed in the pressure vessel, and wherein the leaching agent removes the catalyzing material from the interstitial spaces interposed between the diamond particles of the at least one polycrystalline diamond body, and wherein the at least one retention mechanism of the pressure vessel seals at least a portion of the carbide substrate into the at least one receiving mechanism and prevents the leaching agent from contacting at least a portion of the carbide substrate.

    ULTRAHARD COMPOSITE CONSTRUCTIONS
    5.
    发明专利
    ULTRAHARD COMPOSITE CONSTRUCTIONS 未知

    公开(公告)号：CA2537726C

    公开(公告)日：2013-08-06

    申请号：CA2537726

    申请日：2006-02-24

    Applicant: SMITH INTERNATIONAL

    Inventor： BELNAP JOHN DANIEL ,  GRIFFO ANTHONY ,  EYRE RONALD K ,  MIDDLEMISS STEWART N

    IPC: C04B35/5835 ,  B32B18/00 ,  C04B35/5831 ,  C04B35/64 ,  E21B10/46

    Abstract: Ultrahard composite constructions comprise a plurality of first phases dispersed within a matrix second phase, wherein each can comprise an ultrahard material including PCD, PcBN, and mixtures thereof. The constructions are formed from a plurality of granules that are combined and sintered at HP/HT conditions. The granules include a core surrounded by a shell and both are formed from an ultrahard material or precursor comprising an ultrahard constituent for forming the ultrahard material. When sintered, the cores form the plurality of first phases, and the shells form at least a portion of the second phase. The ultrahard material used to form the granule core may have an amount of ultrahard constituent different from that used to form the granule shell to provide desired different properties. The ultrahard constituent in the granule core and shell can have approximately the same particle size.

    SOLID PCD CUTTER
    6.
    发明专利
    SOLID PCD CUTTER 未知

    公开(公告)号：CA2859822A1

    公开(公告)日：2013-07-04

    申请号：CA2859822

    申请日：2012-12-21

    Applicant: SMITH INTERNATIONAL

    Inventor： EYRE RONALD K ,  BELNAP DANIEL J ,  ZHANG YOUHE ,  SHEN YUELIN ,  SHI JIBIN ,  BURHAN YURI

    IPC: E21B10/46 ,  B24D3/10

    Abstract: A method of forming a cutting element may include placing a plurality of diamond particles adjacent to a substrate in a reaction cell; and subjecting the plurality of diamond particles to high pressure high temperature conditions to form a polycrystalline diamond body; wherein the polycrystalline diamond body comprises a cutting face area to thickness ratio ranging from 60:16 to 500:5; and wherein the polycrystalline diamond body has at least one dimension greater than 8 mm.

    Thermally stable diamond polycrystalline diamond constructions
    7.
    发明专利
    Thermally stable diamond polycrystalline diamond constructions 未知

    公开(公告)号：IE86188B1

    公开(公告)日：2013-05-22

    申请号：IE20050623

    申请日：2005-09-20

    Applicant: SMITH INTERNATIONAL

    Inventor： EYRE RONALD K ,  OLDHAM THOMAS W ,  GRIFFO ANTHONY

    IPC: E21B10/46 ,  B22F7/06 ,  E21B10/567

    Abstract: Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and 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 that extends a partial depth from a surface into the body, 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. The body can include natural diamond grains and/or a blend of natural and synthetic diamond grains, and is treated to form the first region. Before treatment, a portion of the body to be treated is finished to an approximate final dimension so that the depth of the first region of the finished product is substantially the same as when treated. During treatment, catalyst materials as well as non-catalyst metallic materials are removed from the diamond body to provide a further enhanced degree of thermal stability.

    Thermally stable diamond polycrystalline diamond constructions
    8.
    发明专利
    Thermally stable diamond polycrystalline diamond constructions 未知

    公开(公告)号：IE20120262A1

    公开(公告)日：2013-05-22

    申请号：IE20120262

    申请日：2005-09-20

    Applicant: SMITH INTERNATIONAL

    Inventor： EYRE RONALD K ,  OLDHAM THOMAS W ,  GRIFFO ANTHONY

    IPC: E21B1/00 ,  B22F7/00 ,  C22C26/00

    Abstract: Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond 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 that extends a partial depth from a surface into the body, 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 0.02mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body. The body can include natural diamond grains and/or a blend of natural and synthetic diamond grains, and is treated to form the first region. Before treatment, a portion of the body to be treated is finished to an approximate final dimension so that the depth of the first region of the finished product is substantially the same as when treated. During treatment, catalyst materials as well as non-catalyst metallic materials are removed from the diamond body to provide a further enhanced degree of thermal stability.

    CUTTING ELEMENTS AND BITS INCORPORATING THE SAME
    9.
    发明专利
    CUTTING ELEMENTS AND BITS INCORPORATING THE SAME 未知

    公开(公告)号：CA2597312C

    公开(公告)日：2013-01-22

    申请号：CA2597312

    申请日：2007-08-14

    Applicant: SMITH INTERNATIONAL

    Inventor： EYRE RONALD K ,  GU YABEI

    IPC: B23C5/18 ,  B23C5/02 ,  E21B10/46

    Abstract: A cutting element is provided including a substrate having a periphery and an interface surface. An ultra hard material layer is formed over the substrate and interfaces with the interface surface. The interface surface also includes a plurality of spaced apart projections formed inwardly and spaced apart from the periphery and arranged around an annular path, such that each projection includes a convex upper surface defining the projection as viewed in plan view. Each upper surface continuously and smoothly curves in the same direction when viewed along a plane through a diameter of the substrate. Bits incorporating such cutting elements are also provided.

    Thermally stable diamond polycrystalline diamond constructions
    10.
    发明专利
    Thermally stable diamond polycrystalline diamond constructions 未知

    公开(公告)号：IE20110190A1

    公开(公告)日：2011-07-20

    申请号：IE20110190

    申请日：2005-09-20

    Applicant: SMITH INTERNATIONAL

    Inventor： OLDHAM THOMAS W ,  GRIFFO ANTHONY ,  EYRE RONALD K

    IPC: B22F7/00 ,  C22C26/00 ,  E21B1/00

    Abstract: Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and interstitial rehions 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 that extends a partial depth from a surface into the body, 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 0.02mm to a depth of less than about 0.09mm. The diamond body includes diamond crystals having an average diamond grain size of greater than about 0.02mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body. The body can include natural diamond grains and/or a blend of natural and synthetic diamond grains, and is treated to form the first region. Before treatment, a portion of the body to be treated is finished to an approximate final dimension so that the depth of the first region of the finished product is substantially the same as when treated. During treatment, catalyst materials as well as non-catalyst metallic materials are removed from the diamond body to provide a further enhanced degree of thermal stability.

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