METHODS FOR FORMING POLYCRYSTALLINE MATERIALS INCLUDING PROVIDING MATERIAL WITH SUPERABRASIVE GRAINS PRIOR TO HPHT PROCESSING, AND POLYCRYSTALLINE COMPACTS AND CUTTING ELEMENTS FORMED BY SUCH METHODS
    85.
    发明申请
    METHODS FOR FORMING POLYCRYSTALLINE MATERIALS INCLUDING PROVIDING MATERIAL WITH SUPERABRASIVE GRAINS PRIOR TO HPHT PROCESSING, AND POLYCRYSTALLINE COMPACTS AND CUTTING ELEMENTS FORMED BY SUCH METHODS 有权
    用于形成多晶材料的方法,包括在HPHT加工过程中具有超级颗粒的提供材料,以及通过这些方法形成的多晶合成物和切割元素

    公开(公告)号:US20120267172A1

    公开(公告)日:2012-10-25

    申请号:US13091660

    申请日:2011-04-21

    IPC分类号: E21B10/36 B24D3/10 B01J3/06

    摘要: Grains of superabrasive material may be infiltrated with a molten metal alloy at a relatively low temperature, and the molten metal alloy may be solidified within interstitial spaces between the grains of superabrasive material to form a solid metal alloy having the grains of superabrasive material embedded therein. The solid metal alloy with the grains of superabrasive material embedded therein may be subjected to a high pressure and high temperature process to form a polycrystalline superabrasive material. A polycrystalline superabrasive material also may be formed by depositing material on surfaces of grains of superabrasive material in a chemical vapor infiltration process to form a porous body, which then may be subjected to a high pressure and high temperature process. Polycrystalline compacts and cutting elements including such compacts may be formed using such methods.

    摘要翻译: 超级磨料的颗粒可以在相对低的温度下用熔融金属合金渗透,并且熔融金属合金可以在超级磨料材料的颗粒之间的间隙中固化,以形成具有嵌入其中的超级磨料的颗粒的固体金属合金。 具有嵌入其中的超级磨料材料颗粒的固体金属合金可以经受高压和高温工艺以形成多晶超研磨材料。 还可以通过在化学气相渗透方法中将材料沉积在超级磨料材料的颗粒表面上形成多晶超研磨材料,以形成多孔体,然后可以对其进行高压和高温处理。 可以使用这种方法形成包括这种压块的多晶压块和切割元件。

    CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS
    87.
    发明申请
    CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS 有权
    包含这些切割元件的切割元件,接地工具以及形成这种切割元件的方法

    公开(公告)号:US20120103698A1

    公开(公告)日:2012-05-03

    申请号:US13274994

    申请日:2011-10-17

    IPC分类号: E21B10/46 B24D18/00

    摘要: Cutting elements comprise a substrate, a polycrystalline table, and an asymmetric interface feature. The interface feature comprises a shape that is reflectively asymmetric about at least two planes defined by x, y, and z axes of a Cartesian coordinate system defined to align a z axis of the coordinate system with the central axis of the substrate and to locate a center of the coordinate system at a midpoint along an axial height of the asymmetric interface feature. Methods of forming a cutting element comprise: totaling an asymmetric interface feature at an end of a substrate; distributing a plurality of superhard particles on the substrate over the asymmetric interface feature in a mold; and bonding the superhard particles in the mold to form a polycrystalline table attached to the substrate.

    摘要翻译: 切割元件包括基底,多晶台和非对称界面特征。 该界面特征包括一个形状,该形状围绕由笛卡尔坐标系的x,y和z轴限定的至少两个平面反射不对称,该坐标系定义为将坐标系的z轴与基板的中心轴对准,并且定位中心 的坐标系在沿着非对称界面特征的轴向高度的中点处。 形成切割元件的方法包括:在基底的末端处共计非对称界面特征; 在模具中的非对称界面特征上在基底上分布多个超硬颗粒; 并且将超硬颗粒粘合在模具中以形成附着到基底的多晶台。

    POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS
    88.
    发明申请
    POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS 有权
    多晶金刚石复合材料,切割元件和包括这种复合材料的接地工具,以及形成这种压实和地球工具的方法

    公开(公告)号:US20110266059A1

    公开(公告)日:2011-11-03

    申请号:US13094075

    申请日:2011-04-26

    摘要: Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts are also disclosed.

    摘要翻译: 形成用于钻孔工具的多晶金刚石复合体的方法包括形成多晶金刚石材料体,其包括设置在主体中的相互结合的金刚石晶体之间的间隙空间中的第一材料,从第一材料的间隙空间中去除第一材料 选择在类似的高温条件下促进多晶金刚石复合材料比第一材料更高的降解速率的第二材料,并且在主体部分的间隙空间中提供第二材料。 钻孔方法包括使至少一个具有地层的切割器与多晶金刚石材料的第二区域接合,该第二区域包括比包含第一材料的第一多晶金刚石材料区域更快的第二材料。 还公开了包括这种压块的多晶金刚石压块和钻孔工具。

    POLYCRYSTALLINE COMPACTS HAVING MATERIAL DISPOSED IN INTERSTITIAL SPACES THEREIN, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS
    89.
    发明申请
    POLYCRYSTALLINE COMPACTS HAVING MATERIAL DISPOSED IN INTERSTITIAL SPACES THEREIN, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS 有权
    具有在其间隔空间中切割材料的切割元件和包括这样的混合物的接地工具的多晶体化合物以及形成这样的混合物的方法

    公开(公告)号:US20110061942A1

    公开(公告)日:2011-03-17

    申请号:US12558184

    申请日:2009-09-11

    IPC分类号: B24D3/04 E21B10/46 E21B10/55

    摘要: Polycrystalline compacts include smaller and larger hard grains that are interbonded to form a polycrystalline hard material. The larger grains may be at least about 150 times larger than the smaller grains. An interstitial material comprising one or more of a boride, a carbide, a nitride, a metal carbonate, a metal bicarbonate, and a non-catalytic metal may be disposed between the grains. The compacts may be used as cutting elements for earth-boring tools such as drill bits, and may be disposed on a substrate. Methods of making polycrystalline compacts include coating smaller hard particles with a coating material, mixing the smaller particles with larger hard particles, and sintering the mixture to form a polycrystalline hard material including interbonded smaller and larger grains. The sizes of the smaller and larger particles may be selected to cause the larger grains to be at least about 150 times larger than the smaller grains.

    摘要翻译: 多晶压块包括较小和较大的硬质颗粒,其相互键合以形成多晶硬质材料。 较大的颗粒可以比较小的颗粒大至少约150倍。 可以在晶粒之间设置包含硼化物,碳化物,氮化物,金属碳酸盐,金属碳酸氢盐和非催化金属中的一种或多种的间隙材料。 压块可以用作钻头等钻孔工具的切削元件,并且可以设置在基板上。 制造多晶压块的方法包括用涂料涂覆较小的硬颗粒,将较小的颗粒与较大的硬颗粒混合,并烧结该混合物以形成多晶硬质材料,包括粘结的较小和较大的颗粒。 可以选择较小和较大颗粒的尺寸以使较大的颗粒比较小的颗粒大至少约150倍。