知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

41 条记录 (耗时 0.019 秒)

    Polycrystalline compacts, earth-boring tools including such compacts, and methods of fabricating polycrystalline compacts
    32.
    发明授权
    Polycrystalline compacts, earth-boring tools including such compacts, and methods of fabricating polycrystalline compacts 有权
    多晶压块，包括这种压块的钻孔工具以及制造多晶压块的方法

    公开(公告)号：US09498867B2

    公开(公告)日：2016-11-22

    申请号：US14090018

    申请日：2013-11-26

    申请人： Baker Hughes Incorporated

    发明人： Valery N. Khabashesku ,  Vladimir P. Filonenko

    IPC分类号： E21B10/56 ,  B22F3/14 ,  B24D18/00 ,  B24D3/06 ,  E21B10/567

    CPC分类号： E21B10/567 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/063 ,  B01J2203/0635 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0665 ,  B01J2203/067 ,  B01J2203/0685 ,  B24D3/06 ,  B24D18/0009

    摘要： A polycrystalline compact includes diamond grains, cubic boron nitride grains, and grains of an additional nitride, carbide, or boride. The additional nitride, carbide, or boride may be aluminum nitride, gallium nitride, silicon nitride, titanium nitride, silicon carbide, titanium carbide, titanium boride, titanium diboride, and/or aluminum boride. The diamond grains, the cubic boron nitride grains, and the grains of the additional nitride, carbide, or boride are intermixed and interbonded to form a polycrystalline material. An earth-boring tool includes a bit body and a polycrystalline diamond compact secured to the bit body. Methods of fabricating polycrystalline compacts include forming a mixture comprising diamond grains, non-cubic boron nitride grains, and a metal or semimetal; encapsulating the mixture in a container; and subjecting the encapsulated mixture to high-pressure and high-temperature conditions to form a polycrystalline material.

    摘要翻译： 多晶压块包括金刚石晶粒，立方氮化硼晶粒和另外的氮化物，碳化物或硼化物的晶粒。 另外的氮化物，碳化物或硼化物可以是氮化铝，氮化镓，氮化硅，氮化钛，碳化硅，碳化钛，硼化钛，二硼化钛和/或硼化铝。 金刚石晶粒，立方氮化硼晶粒和附加氮化物，碳化物或硼化物的晶粒混合并键合以形成多晶材料。 钻孔工具包括固定在钻头体上的钻头体和多晶金刚石块。 制造多晶压块的方法包括形成包含金刚石晶粒，非立方氮化硼晶粒和金属或半金属的混合物; 将混合物包封在容器中; 并将包封的混合物经受高压和高温条件以形成多晶材料。

    High pressure superabrasive particle synthesis
    35.
    发明授权
    High pressure superabrasive particle synthesis 失效
    高压超磨料颗粒合成

    公开(公告)号：US07323049B2

    公开(公告)日：2008-01-29

    申请号：US10791300

    申请日：2004-03-01

    申请人： Chien-Min Sung

    发明人： Chien-Min Sung

    IPC分类号： B28D1/02 ,  B28D11/00 ,  C30B29/04

    CPC分类号： E21B10/5676 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0635 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/068 ,  B01J2203/0685 ,  B22F2005/001 ,  B22F2999/00 ,  B23D61/18 ,  B23D65/00 ,  B23P15/28 ,  B24D3/08 ,  B24D7/066 ,  B24D18/00 ,  B24D99/005 ,  B24D2203/00 ,  C22C1/051 ,  C22C26/00 ,  C22C2204/00 ,  B22F2207/03 ,  B22F1/0011 ,  B22F3/004 ,  B22F2003/1046

    摘要： An improved method for controlling nucleation sites during superabrasive particle synthesis can provide high quality industrial superabrasive particles with high yield and a narrow size distribution. The synthesis method can include forming a raw material layer, forming a particulate catalyst layer adjacent the raw material layer, and placing crystalline seeds in a predetermined pattern at least partially in the catalyst layer or raw material layer to form a growth precursor. Alternatively, the raw material and catalyst material can be mixed to form a particulate crystal growth layer and then placing the crystalline seeds in a predetermined pattern in the growth layer. Preferably, seeds can be substantially surrounded by catalyst material. The growth precursor can be maintained at a temperature and pressure at which the superabrasive crystal is thermodynamically stable for a time sufficient for a desired degree of growth. The crystalline seeds can be placed in a predetermined pattern using a template, a transfer sheet, vacuum chuck or similar techniques. The superabrasive particles grown using the described methods typically have a high yield of high quality industrial particles and a narrow distribution of particle sizes.

    摘要翻译： 在超磨料颗粒合成中控制成核位置的改进方法可以提供高产率和窄尺寸分布的高质量工业超研磨颗粒。 合成方法可以包括形成原料层，在原料层附近形成颗粒催化剂层，并将至少部分地将结晶晶种至少部分地放置在催化剂层或原料层中以形成生长前体。 或者，可以将原料和催化剂材料混合以形成颗粒状晶体生长层，然后将结晶种子以预定图案放置在生长层中。 优选地，种子可以被催化剂材料基本包围。 生长前体可以保持在超磨料晶体在热力学稳定的温度和压力下达足以达到所需生长程度的时间。 结晶种子可以使用模板，转印片，真空吸盘或类似技术以预定图案放置。 使用所述方法生长的超级磨料颗粒通常具有高产率的高质量工业颗粒和窄粒度分布。

    Supported polycrystalline compacts having improved physical properties
    37.
    发明授权
    Supported polycrystalline compacts having improved physical properties 失效
    具有改善的物理性质的支撑多晶压块

    公开(公告)号：US5773140A

    公开(公告)日：1998-06-30

    申请号：US616997

    申请日：1996-03-14

    申请人： David Bruce Cerutti ,  Henry Samuel Marek

    发明人： David Bruce Cerutti ,  Henry Samuel Marek

    IPC分类号： C04B41/87 ,  B01J3/06 ,  B24D3/00

    CPC分类号： B01J3/062 ,  B01J3/065 ,  B01J2203/062 ,  B01J2203/0635 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685 ,  Y10T428/12056 ,  Y10T428/26 ,  Y10T428/30 ,  Y10T428/31678

    摘要： Supported polycrystalline compacts having improved shear strength, impact, and fracture toughness properties, and methods for making the same under high temperature/high pressure (HT/HP) processing conditions. The method involves a HT/HP apparatus formed of a generally cylindrical reaction cell assembly having an inner chamber of predefined axial and radial extents and containing pressure transmitting medium, and a charge assembly having axial and radial surfaces and formed of at least one sub-assembly comprising a mass of crystalline particles adjacent a metal carbide support layer. The charge assembly is disposed within the chamber of the reaction cell assembly, with the pressure transmitting medium being interposed between the axial and radial surfaces of the charge assembly and the extents of the reaction cell chamber to define an axial pressure transmitting medium thickness, L.sub.h, and a radial pressure transmitting medium thickness, L.sub.r, the ratio of which, L.sub.h /L.sub.r being selected as less than 1. The reaction cell assembly containing the charge assembly then is subjected to HT/HP conditions selected as effective to sinter the crystalline particles into a polycrystalline compact layer and to bond the polycrystalline compact layer at an interface to the metal carbide support layer for forming a metal carbide supported polycrystalline compact. The supported compact is characterized as having an essentially constant or increasing residual compressive stress on the surface of its compact layer as portions of a predefined thickness, W, of its support layer, as measured from the interfaced, are incrementally removed.

    摘要翻译： 具有改进的剪切强度，冲击和断裂韧性性能的支撑多晶压块及其在高温/高压（HT / HP）加工条件下制备该多晶压块的方法。 该方法包括由具有预定的轴向和径向范围的内室并包含压力传递介质的大致圆柱形的反应池组件形成的HT / HP设备，以及具有轴向和径向表面并由至少一个子组件形成的电荷组件 包括邻近金属碳化物支撑层的大量结晶颗粒。 电荷组件设置在反应池组件的腔室内，压力传递介质介于电荷组件的轴向和径向表面之间以及反应室室的范围，以限定轴向压力传递介质厚度Lh， 和径向压力传递介质厚度Lr，其比例Lh / Lr被选择为小于1.然后将含有电荷组件的反应池组件经受选择为有效地将结晶颗粒烧结的HT / HP条件 多晶致密层并且在与金属碳化物支撑层的界面处结合多晶致密层以形成金属碳化物负载的多晶结构体。 支撑的压实体的特征在于在其紧密层的表面上具有基本恒定或增加的残余压应力，因为从界面测量的其支撑层的预定厚度W的部分被递增地移除。

    Cutting tool and method of making same
    40.
    发明授权
    Cutting tool and method of making same 失效
    切割工具及其制作方法

    公开(公告)号：US3850053A

    公开(公告)日：1974-11-26

    申请号：US30718772

    申请日：1972-11-16

    申请人： GEN ELECTRIC

    发明人： BOVENKERK H

    IPC分类号： B01J3/06 ,  B24D18/00 ,  B21K5/12

    CPC分类号： B24D18/00 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0635 ,  B01J2203/0655 ,  B01J2203/0685 ,  Y10T407/27

    摘要： A cutting tool of the type used in machining operations has a supporting substrate of metal-cemented carbide which was formed prior to being placed in a pressure chamber. The cutting edge of the tool is composed of diamond integral with the substrate which was grown on the substrate from nondiamond carbon by subjecting the preformed substrate with the carbon in contact therewith to pressures of about 45 kilobars in the pressure chamber at temperatures of 1,400*-1,600*C. The carbide-cementing metal is chosen from among cobalt, nickel and iron - all of which are catalyst metals for the formation of diamond. Under diamondstable thermodynamic pressure and temperature conditions, the nondiamond carbon is catalyzed by the cementing material to form diamond in predominantly a (111) crystallographic orientation plane to produce columnar grains perpendicular to the diamondcarbide interface.

    摘要翻译： 在加工操作中使用的切削刀具具有在放置在压力室中之前形成的金属硬质合金的支撑基板。 刀具的切削刃由与金刚石一体的金刚石组成，该衬底通过使预成型的基底与其接触的碳经受来自非金刚石碳的基底上的压力，在压力室中在1400℃的温度下， 硬质合金金属选自钴，镍和铁 - 所有这些都是用于形成金刚石的催化剂金属。 在金刚石稳定的热力学压力和温度条件下，非金刚石碳由固结材料催化，以在主要为（111）晶体取向平面中形成金刚石，以产生垂直于金刚石 - 碳化物界面的柱状晶粒。