PDC CUTTER WITH CHEMICAL ADDITION FOR ENHANCED ABRASION RESISTANCE
    31.
    发明申请
    PDC CUTTER WITH CHEMICAL ADDITION FOR ENHANCED ABRASION RESISTANCE 有权
    具有化学添加剂的PDC切割机,用于增强耐磨性

    公开(公告)号:US20140374172A1

    公开(公告)日:2014-12-25

    申请号:US13926696

    申请日:2013-06-25

    Abstract: A superabrasive cutter and a method of making the superabrasive cutter are disclosed. The superabrasive cutter may comprise a plurality of polycrystalline superabrasive particles and about 0.01% to about 4% by weight of the superabrasive particles of a metal or metal alloy. The metal or the metal alloy may be immiscible with a catalyst for forming the polycrystalline superabrasive particles.

    Abstract translation: 公开了一种超磨料切割机和制造该超级磨料刀的方法。 超研磨刀具可以包括多个多晶超研磨颗粒和约0.01重量%至约4重量%的金属或金属合金的超研磨颗粒。 金属或金属合金可以与用于形成多晶超研磨颗粒的催化剂不混溶。

    POLYCRYSTALLINE DIAMOND AND MANUFACTURING METHOD THEREOF
    35.
    发明申请
    POLYCRYSTALLINE DIAMOND AND MANUFACTURING METHOD THEREOF 有权
    多晶金刚石及其制造方法

    公开(公告)号:US20140170055A1

    公开(公告)日:2014-06-19

    申请号:US14235758

    申请日:2012-07-26

    CPC classification number: C01B32/25 B01J3/062 B01J2203/061 B01J2203/0655

    Abstract: Nano polycrystalline diamond is composed of carbon and a plurality of impurities other than carbon. A concentration of each of the plurality of impurities is not higher than 0.01 mass %, and the nano polycrystalline diamond has a crystal grain size (a maximum length) not greater than 500 nm. The nano polycrystalline diamond can be fabricated by preparing graphite in which a concentration of an impurity is not higher than 0.01 mass % and converting graphite to diamond by applying an ultra-high pressure and a high temperature to graphite.

    Abstract translation: 纳米多晶金刚石由碳和除碳以外的多种杂质组成。 多个杂质的浓度不高于0.01质量%,纳米多晶金刚石的结晶粒径(最大长度)不大于500nm。 可以通过制备其中杂质浓度不高于0.01质量%的石墨并通过对石墨施加超高压和高温将石墨转化为金刚石来制造纳米多晶金刚石。

    ROTARY DRILL BIT INCLUDING POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS
    37.
    发明申请
    ROTARY DRILL BIT INCLUDING POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS 有权
    旋转钻头,包括多晶金刚石切割元件

    公开(公告)号:US20130228383A1

    公开(公告)日:2013-09-05

    申请号:US13860110

    申请日:2013-04-10

    Abstract: In an embodiment, a rotary drill bit includes a bit body having a leading end structure configured to facilitate drilling a subterranean formation, and a plurality of cutting elements mounted to the bit body. At least one of the plurality of cutting elements includes a polycrystalline diamond compact (“PDC”) comprising a cemented carbide substrate including a first cemented carbide portion and a second cemented carbide portion bonded to the first cemented carbide portion and exhibiting an erosion resistance that is greater than the first cemented carbide portion. The PDC further comprises a polycrystalline diamond (“PCD”) table bonded to the first cemented carbide portion. The PCD table includes a plurality of bonded diamond grains exhibiting diamond-to-diamond bonding therebetween, with the plurality of bonded diamond grains defining a plurality of interstitial regions.

    Abstract translation: 在一个实施例中,旋转钻头包括具有构造成便于钻探地层的前端结构的钻头体和安装到钻头体上的多个切割元件。 多个切割元件中的至少一个包括多晶金刚石复合体(“PDC”),其包括硬质合金基体,该硬质合金基底包括第一硬质合金部分和第二硬质合金部分,该第二硬质合金部分结合到第一硬质合金部分并且具有耐侵蚀性, 大于第一硬质合金部分。 PDC还包括结合到第一硬质合金部分的多晶金刚石(“PCD”)台。 PCD表包括多个结合的金刚石晶粒,其间形成金刚石 - 金刚石结合,多个结合的金刚石晶粒限定多个间隙区域。

    Polycrystalline diamond
    39.
    发明授权
    Polycrystalline diamond 有权
    多晶金刚石

    公开(公告)号:US08505654B2

    公开(公告)日:2013-08-13

    申请号:US12901629

    申请日:2010-10-11

    Abstract: A PCD composite compact comprising a PCD structure bonded at an interface to a substrate comprising cemented carbide material; the PCD structure comprising a mass of directly inter-bonded diamond grains having a mean size of at most about 4 microns, and the PCD structure comprising at least about 0.05 weight percent refractory metal or carbide of a refractory metal selected from the group comprising W, Ti, V, Cr, Zr, Nb, Mo, Hf and Ta; and at least the cemented carbide material proximate the interface having a content of metallic binder material of at most about 6 weight percent.

    Abstract translation: 一种PCD复合压块,包括在与包含硬质合金材料的基板的界面处结合的PCD结构; 所述PCD结构包含大量具有至多约4微米的平均尺寸的直接互相结合的金刚石晶粒,并且所述PCD结构包含至少约0.05重量%的难熔金属或难熔金属的碳化物,所述难熔金属或碳化物选自W, Ti,V,Cr,Zr,Nb,Mo,Hf和Ta; 并且至少接近界面的硬质合金材料具有至多约6重量%的金属粘合剂材料的含量。

    POLYCRYSTALLINE SUPERHARD MATERIAL
    40.
    发明申请
    POLYCRYSTALLINE SUPERHARD MATERIAL 有权
    多晶超硬材料

    公开(公告)号:US20130199107A1

    公开(公告)日:2013-08-08

    申请号:US13641390

    申请日:2011-04-20

    Applicant: Robert Fries

    Inventor: Robert Fries

    Abstract: A polycrystalline superhard material comprises a sintered mass of superhard grains having a mean superhard grain contiguity of at least 62 percent and at most 92 percent. There is also disclosed a method of making such a polycrystalline superhard material. The method comprises providing a precursor body comprising superhard grains and interstices between the superhard grains, and introducing additive particles into the interstices to form a pre-sinter body. The pre-sinter body is submitted to a temperature and pressure at which superhard material is thermodynamically stable, sintering it and forming polycrystalline superhard material.

    Abstract translation: 多晶超硬材料包括具有至少62%且至多92%的平均超硬颗粒接近度的超硬颗粒的烧结块。 还公开了制造这种多晶超硬材料的方法。 该方法包括提供包含超硬颗粒和超硬颗粒之间的间隙的前体体,并将添加剂颗粒引入到间隙中以形成预烧结体。 预烧结体承受超硬材料在热力学上稳定的温度和压力,烧结并形成多晶超硬材料。

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