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    Cutting elements formed from ultra hard materials having an enhanced construction
    3.
    发明授权
    Cutting elements formed from ultra hard materials having an enhanced construction 有权
    由具有增强结构的超硬材料形成的切割元件

    公开(公告)号：US07757791B2

    公开(公告)日：2010-07-20

    申请号：US12059940

    申请日：2008-03-31

    申请人： John Daniel Belnap ,  Stewart N. Middlemiss

    发明人： John Daniel Belnap ,  Stewart N. Middlemiss

    IPC分类号： E21B10/46

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  Y10T428/30 ,  B22F2207/03

    摘要： Cutting elements of this invention include an ultra hard body joined with a metallic substrate. The body includes an uppermost layer comprising a plurality of bonded ultra hard crystals and interstitial regions, and that form a body working surface. The uppermost layer includes a thermally stable outer region that is substantially free of a catalyst material. The body includes an intermediate layer joined to the uppermost layer, comprising a plurality of bonded ultra hard crystals, and having a wear resistance less than that of the uppermost layer remaining region. The intermediate material can include a catalyst and other materials. The ultra hard crystals can be diamond, and the volume fraction of crystals in the uppermost layer can be greater than that in the intermediate layer. The body may additionally include a lowermost PCD layer interposed between and attached to the intermediate layer and the substrate.

    摘要翻译： 本发明的切割元件包括与金属基底连接的超硬体。 主体包括包含多个粘结的超硬晶体和间隙区域的最上层，并且形成身体工作表面。 最上层包括基本上不含催化剂材料的热稳定的外部区域。 主体包括连接到最上层的中间层，包括多个结合的超硬晶体，并且具有比最上层剩余区域的耐磨性更低的耐磨性。 中间材料可以包括催化剂和其它材料。 超硬晶体可以是金刚石，并且最上层中的晶体的体积分数可以大于中间层中的晶体的体积分数。 主体可以另外包括介于中间层和衬底之间并附着于中间层和衬底的最下面的PCD层。

    Cutting elements formed from ultra hard materials having an enhanced construction
    5.
    发明授权
    Cutting elements formed from ultra hard materials having an enhanced construction 有权
    由具有增强结构的超硬材料形成的切割元件

    公开(公告)号：US07350601B2

    公开(公告)日：2008-04-01

    申请号：US11043901

    申请日：2005-01-25

    申请人： John Daniel Belnap ,  Stewart N. Middlemiss

    发明人： John Daniel Belnap ,  Stewart N. Middlemiss

    IPC分类号： E21B10/46

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  Y10T428/30 ,  B22F2207/03

    摘要： Cutting elements of this invention include an ultra hard body joined with a metallic substrate. The body includes an uppermost layer comprising a plurality of bonded ultra hard crystals and interstitial regions, and that defines a body working surface. The uppermost layer includes an outer region that is relatively more thermally stable than a remaining portion of the uppermost layer. The body further includes an intermediate layer joined to the uppermost layer, comprising a plurality of bonded ultra hard crystals, and having a wear resistance less than that of the uppermost layer remaining region. The body may additionally include a lowermost PCD layer that is interposed between and attached to the intermediate layer and the substrate.

    摘要翻译： 本发明的切割元件包括与金属基底连接的超硬体。 主体包括最上层，其包括多个结合的超硬晶体和间隙区域，并且限定了主体工作表面。 最上层包括比最上层的剩余部分更热稳定的外部区域。 主体还包括连接到最上层的中间层，包括多个结合的超硬晶体，并且具有小于最上层剩余区域的耐磨性。 主体可以另外包括介于中间层和衬底之间并附着到中间层和衬底之间的最下面的PCD层。

    Ultrahard composite constructions
    6.
    发明授权
    Ultrahard composite constructions 失效
    超硬复合结构

    公开(公告)号：US07757788B2

    公开(公告)日：2010-07-20

    申请号：US12211762

    申请日：2008-09-16

    申请人： John Daniel Belnap ,  Anthony Griffo ,  Ronald K. Eyre ,  Stewart N. Middlemiss

    发明人： John Daniel Belnap ,  Anthony Griffo ,  Ronald K. Eyre ,  Stewart N. Middlemiss

    IPC分类号： E21B43/00 ,  C22C1/05

    CPC分类号： B22F1/0003 ,  B22F2998/10 ,  C22C26/00 ,  E21B10/56 ,  B22F3/12

    摘要： 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.

    摘要翻译： 超硬复合结构包括分散在基质第二相中的多个第一相，其中每个第一相可包含超硬材料，其包括PCD，PcBN及其混合物。 这些结构由在HP / HT条件下组合和烧结的多个颗粒形成。 颗粒包括由壳包围的芯，并且都由超硬材料或前体形成，所述超硬材料或前体包含用于形成超硬材料的超硬组分。 当烧结时，芯形成多个第一相，并且壳形成第二相的至少一部分。 用于形成颗粒核的超硬材料可以具有与用于形成颗粒壳的用量相差的超硬组分，以提供所需的不同性质。 颗粒核和壳中的超硬组分可以具有大致相同的粒度。

    CUTTING ELEMENTS FORMED FROM ULTRA HARD MATERIALS HAVING AN ENHANCED CONSTRUCTION
    7.
    发明申请
    CUTTING ELEMENTS FORMED FROM ULTRA HARD MATERIALS HAVING AN ENHANCED CONSTRUCTION 有权
    从具有加强结构的超硬材料制成的切割元素

    公开(公告)号：US20080179109A1

    公开(公告)日：2008-07-31

    申请号：US12059940

    申请日：2008-03-31

    申请人： John Daniel Belnap ,  Stewart N. Middiemiss

    发明人： John Daniel Belnap ,  Stewart N. Middiemiss

    IPC分类号： E21B10/52

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  Y10T428/30 ,  B22F2207/03

    摘要： Cutting elements of this invention include an ultra hard body joined with a metallic substrate. The body includes an uppermost layer comprising a plurality of bonded ultra hard crystals and interstitial regions, and that form a body working surface. The uppermost layer includes a thermally stable outer region that is substantially free of a catalyst material. The body includes an intermediate layer joined to the uppermost layer, comprising a plurality of bonded ultra hard crystals, and having a wear resistance less than that of the uppermost layer remaining region. The intermediate material can include a catalyst and other materials. The ultra hard crystals can be diamond, and the volume fraction of crystals in the uppermost layer can be greater than that in the intermediate layer. The body may additionally include a lowermost PCD layer interposed between and attached to the intermediate layer and the substrate.

    摘要翻译： 本发明的切割元件包括与金属基底连接的超硬体。 主体包括包含多个粘结的超硬晶体和间隙区域的最上层，并且形成身体工作表面。 最上层包括基本上不含催化剂材料的热稳定的外部区域。 主体包括接合到最上层的中间层，包括多个结合的超硬晶体，并且具有比最上层剩余区域的耐磨性更低的耐磨性。 中间材料可以包括催化剂和其它材料。 超硬晶体可以是金刚石，并且最上层中的晶体的体积分数可以大于中间层中的晶体的体积分数。 主体可以另外包括介于中间层和衬底之间并附着于中间层和衬底的最下面的PCD层。