Method for producing uniform cylindrical tubes of CVD diamond
    1.
    发明公开
    Method for producing uniform cylindrical tubes of CVD diamond 失效
    Verfahren zur Herstellung einheitlicher zylindrischer Rohre aus CVD-Diamant

    公开(公告)号:EP0950724A1

    公开(公告)日:1999-10-20

    申请号:EP98123259.8

    申请日:1993-02-02

    IPC分类号: C23C16/26

    摘要: The present invention provides a method for forming uniform CVD diamond coatings on a substrate wherein diamond is deposited on a plurality of substrates which are rotated in unison during the coating process to provide for more uniform radial growth. An advantageous substrate is a wire which can be coated with a layer of CVD diamond for making components in water-jet cutting apparatus, wire-drawing dies, or other tubular articles when the wire is separated from the resulting diamond tube. Identical tubes with higher uniformity in wall thickness are among the products which can be obtained. In addition, tubes having a uniform particle size distribution along their wall thickness which supports columnar diamond growth are also provided.

    摘要翻译: 本发明提供了一种在衬底上形成均匀的CVD金刚石涂层的方法,其中将金刚石沉积在多个衬底上,该衬底在涂覆过程中一致地旋转以提供更均匀的径向生长。 有利的基材是当金属丝与所得金刚石管分离时,其可以涂覆有CVD金刚石层,用于在喷水切割设备,拉丝模具或其它管状物品中制造部件。 可以获得的产品中具有较高壁厚均匀性的相同的管。 此外,还提供了沿其壁厚均匀的粒度分布的管,其支撑柱状金刚石生长。

    Chip breaker for polycrystalline CBN and diamond compacts
    2.
    发明公开
    Chip breaker for polycrystalline CBN and diamond compacts 失效
    Spanbrecherfürpolykristalline CBN und Diamantpulver enthaltendeKörper。

    公开(公告)号:EP0425812A2

    公开(公告)日:1991-05-08

    申请号:EP90118295.6

    申请日:1990-09-24

    摘要: The present invention is directed to the formation of a chip breaker in a polycrystalline diamond or cubic boron nitride compact. An oversized compact blank having a surface and edges that establish it as oversized is provided. A chip breaker pattern is formed on the compact blank surface. Preferred means for forming the chip breaker pattern include use of a laser, a plunge EDM apparatus, or by ultrasonic abrading. Thereafter, the edges of the patterned oversized compact blank are finished to reduce the size of the blank. When plunge EDM apparatus fitted with a patterned plunger is used, the compact blank must be electrically conductive.

    摘要翻译: 本发明涉及在多晶金刚石或立方氮化硼压块中形成断屑器。 提供了一种具有表面和超大尺寸的边缘的超大型紧凑坯料。 在紧凑的坯料表面上形成断屑器图案。 用于形成断屑器图案的优选方式包括使用激光,插入式EDM设备,或通过超声波研磨。 此后,图案化的超大型紧凑坯料的边缘被完成以减小坯料的尺寸。 当使用装有图案柱塞的插入式EDM装置时,紧凑的坯料必须是导电的。

    Polycrystalline diamond cutting element with diamond ridge pattern
    3.
    发明公开
    Polycrystalline diamond cutting element with diamond ridge pattern 失效
    Polykristallines Diamantschneideelement mit Diamantrippenform

    公开(公告)号:EP0852283A2

    公开(公告)日:1998-07-08

    申请号:EP97310503.4

    申请日:1997-12-23

    IPC分类号: E21B10/00

    CPC分类号: E21B10/5673 E21B10/5735

    摘要: This invention relates to a novel domed polycrystalline diamond cutting element wherein a hemispherical diamond layer is bonded to a tungsten carbide substrate, commonly referred to as a tungsten carbide stud. Broadly, a pattern of ridges or bumps is integrally formed in the abrasive layer which ridges are designed to cause high localized stresses in the rock, thus starting a crack. By initiating cracks in localized areas, the crushing action could be performed with less force.

    摘要翻译: 本发明涉及一种新型的圆顶多晶金刚石切割元件,其中半球形金刚石层与通常称为碳化钨螺柱的碳化钨基底结合。 广泛地,在研磨层中一体地形成脊或凸块的图案,其中脊被设计成在岩石中引起高的局部应力,从而开始裂纹。 通过在局部区域中引发裂纹,可以以较小的力进行破碎作用。

    Chip breaker for polycrystalline CBN and diamond compacts
    4.
    发明公开
    Chip breaker for polycrystalline CBN and diamond compacts 失效
    用于多晶CBN和金刚石混合物的切断器

    公开(公告)号:EP0425812A3

    公开(公告)日:1991-11-06

    申请号:EP90118295.6

    申请日:1990-09-24

    摘要: The present invention is directed to the formation of a chip breaker in a polycrystalline diamond or cubic boron nitride compact. An oversized compact blank having a surface and edges that establish it as oversized is provided. A chip breaker pattern is formed on the compact blank surface. Preferred means for forming the chip breaker pattern include use of a laser, a plunge EDM apparatus, or by ultrasonic abrading. Thereafter, the edges of the patterned oversized compact blank are finished to reduce the size of the blank. When plunge EDM apparatus fitted with a patterned plunger is used, the compact blank must be electrically conductive.

    摘要翻译: 本发明涉及在多晶金刚石或立方氮化硼压块中形成断屑器。 提供了一种具有表面和超大尺寸的边缘的超大型紧凑坯料。 在紧凑的坯料表面上形成断屑器图案。 用于形成断屑器图案的优选方式包括使用激光,插入式EDM设备,或通过超声波研磨。 此后,图案化的超大型紧凑坯料的边缘被完成以减小坯料的尺寸。 当使用装有图案柱塞的插入式EDM装置时,紧凑的坯料必须是导电的。

    Method for producing uniform cylindrical tubes of CVD diamond
    7.
    发明公开
    Method for producing uniform cylindrical tubes of CVD diamond 无效
    Verfahren zur Herstellung einheitlicher zylindrischer Rohre aus CVD-Diamanten。

    公开(公告)号:EP0559329A2

    公开(公告)日:1993-09-08

    申请号:EP93300751.0

    申请日:1993-02-02

    IPC分类号: C23C16/26

    摘要: The present invention provides a method for forming uniform CVD diamond coatings on a substrate wherein diamond is deposited on a plurality of substrates which are rotated in unison during the coating process to provide for more uniform radial growth. An advantageous substrate is a wire which can be coated with a layer of CVD diamond for making components in water-jet cutting apparatus, wire-drawing dies, or other tubular articles when the wire is separated from the resulting diamond tube. Identical tubes with higher uniformity in wall thickness are among the products which can be obtained. In addition, tubes having a uniform particle size distribution along their wall thickness which supports columnar diamond growth are also provided.

    摘要翻译: 本发明提供了一种在衬底上形成均匀的CVD金刚石涂层的方法,其中将金刚石沉积在多个衬底上,该衬底在涂覆过程中一致地旋转以提供更均匀的径向生长。 有利的基材是当金属丝与所得金刚石管分离时,其可以涂覆有CVD金刚石层,用于在喷水切割设备,拉丝模具或其它管状物品中制造部件。 可以获得的产品中具有较高壁厚均匀性的相同的管。 此外,还提供了沿其壁厚均匀的粒度分布的管,其支撑柱状金刚石生长。

    Brazed composite compact implement
    8.
    发明公开
    Brazed composite compact implement 失效
    一种复合压块含有通过钎焊工具制造。

    公开(公告)号:EP0166379A2

    公开(公告)日:1986-01-02

    申请号:EP85107641.4

    申请日:1985-06-20

    IPC分类号: B23K35/30 B23B27/14

    摘要: Disclosed is an improved implement comprising a cemented carbide supported composite abrasive compact which is brazed to a cemented carbide substrate with a brazing filler metal having a liquidus substantially above 700 °C. The composite compact preferably is a composite polycrystalline diamond compact. The brazing filler metal is a brazing alloy having a liquidus not substantially above 1,004 °C and which has the following composition, by weight:

    Au 18-39.5%
    Ni 3.5-14.5%
    Pd 2.5-10.5%
    Mn 7.5-9.0%
    Cu Balance.

    Polycrystalline diamond cutting element
    10.
    发明公开
    Polycrystalline diamond cutting element 失效
    Polykristallines Diamant-Schneidelement

    公开(公告)号:EP0916804A1

    公开(公告)日:1999-05-19

    申请号:EP97309188.7

    申请日:1997-11-14

    IPC分类号: E21B10/56

    CPC分类号: E21B10/567

    摘要: The present invention relates to a novel domed polycrystalline diamond cutting element (10) wherein a hemispherical diamond layer (14) is bonded to a tungsten carbide substrate (16), commonly referred to as a tungsten carbide stud. Broadly, the inventive cutting element includes a metal carbide stud having a proximal end adapted to be placed into a drill bit (12) and a distal end portion. A layer of cutting polycrystalline abrasive material disposed over said distal end portion such that an annulus (20) of metal carbide adjacent and above said drill bit is not covered by said abrasive material layer. The geometry of the diamond cutting element provides control of interfacial stresses and reduces fabrication costs. The diamond cutting element may contain a pattern of ridges or bumps integrally formed in the abrasive layer which ridges are designed to cause high localized stresses in the rock, thus starting a crack. By initiating cracks in localized areas, the crushing action could be performed with less force.

    摘要翻译: 本发明涉及一种新颖的圆顶多晶金刚石切割元件(10),其中半球状金刚石层(14)被结合到通常称为碳化钨螺柱的碳化钨基底(16)上。 广义地说,本发明的切割元件包括金属硬质合金柱,其具有适于放置在钻头(12)和远端部分中的近端。 设置在所述远端部分上方的切割多晶磨料层,使得邻近和在所述钻头附近的金属碳化物的环(20)不被所述磨料层覆盖。 金刚石切割元件的几何形状提供对界面应力的控制并降低制造成本。 金刚石切割元件可以包含在研磨层中一体形成的脊或凸块的图案,其中脊被设计成在岩石中引起高的局部应力,从而开始裂纹。 通过在局部区域中引发裂纹,可以以较小的力进行破碎作用。