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    Polycrystalline diamond abrasive elements
    1.
    发明申请
    Polycrystalline diamond abrasive elements 有权
    多晶金刚石磨料元素

    公开(公告)号：US20070181348A1

    公开(公告)日：2007-08-09

    申请号：US10558491

    申请日：2004-05-27

    申请人： Brett Lancaster ,  Bronwyn Roberts ,  Imraan Parker ,  Klaus Tank ,  Roy Achilles ,  Clement Van Der Riet

    发明人： Brett Lancaster ,  Bronwyn Roberts ,  Imraan Parker ,  Klaus Tank ,  Roy Achilles ,  Clement Van Der Riet

    IPC分类号： E21B10/62

    CPC分类号： E21B10/46 ,  B24D18/00 ,  B24D99/005 ,  C22C26/00 ,  E21B10/567 ,  E21B10/5735 ,  Y10T408/81

    摘要： A polycrystalline diamond abrasive element, particularly a cutting element, comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide substrate, along a non-planar interface. The non-planar interface typically has a cruciform configuration. The polycrystalline diamond has a high wear-resistance, and has a region adjacent the working surface lean in catalysing material and a region rich in catalysing material. The region lean in catalysing material extends to a depth of 40 to 90 microns, which is much shallower than in the prior art. Notwithstanding the shallow region lean in catalysing material, the polycrystalline diamond cutters have a wear resistance, impact strength and cutter life comparable to that of prior art cutter, but requiring only 20% of the treatment times of the prior art cutters.

    摘要翻译： 多晶金刚石研磨元件，特别是切割元件，包括沿着非平面界面结合到基底，特别是硬质合金基底的多晶金刚石台。 非平面界面通常具有十字形构造。 多晶金刚石具有高耐磨性，并且具有邻近工作表面的贫乏催化材料的区域和富含催化材料的区域。 在催化材料中倾斜的区域延伸到40至90微米的深度，其比现有技术浅得多。 尽管在催化材料中较浅的区域，多晶金刚石切割器具有与现有技术切割机相当的耐磨性，冲击强度和切割寿命，但仅需要现有技术切割器的20％的处理时间。

    Tool insert
    3.
    发明申请
    Tool insert 审中-公开
    工具插入

    公开(公告)号：US20060260850A1

    公开(公告)日：2006-11-23

    申请号：US10549393

    申请日：2004-03-12

    申请人： Bronwyn Roberts ,  Geoffrey Davies ,  Roy Achilles

    发明人： Bronwyn Roberts ,  Geoffrey Davies ,  Roy Achilles

    IPC分类号： E21B10/46

    CPC分类号： E21B10/567

    摘要： A tool insert comprises a working layer of ultra-hard abrasive, particularly PCD, bonded to a substrate along an interface. The working layer presents a working surface and a periphery around the working surface which provides a cutting edge for the insert. The working layer of ultra-hard abrasive has a first region extending into the layer from the working surface, and a second region in contact with the first region, the wear resistance of the first region being less than that of the second region. The wear resistance of the first region is between 50% and 95% of that of the second region, preferably between 60% and 90%, most preferably between 70% and 89%.

    摘要翻译： 工具插入件包括沿着界面结合到基底的超硬磨料的工作层，特别是PCD。 工作层具有工作表面和围绕工作表面的周边，为刀片提供切削刃。 超硬磨料的工作层具有从工作表面延伸到层中的第一区域和与第一区域接触的第二区域，第一区域的耐磨性小于第二区域的耐磨性。 第一区域的耐磨性为第二区域的耐磨性的50％至95％，优选为60％至90％，最优选为70％至89％。