Composite polycrystalline diamond compact with improved impact and
thermal stability
    1.
    发明授权
    Composite polycrystalline diamond compact with improved impact and thermal stability 失效
    复合多晶金刚石复合材料具有改善的冲击和热稳定性

    公开(公告)号:US5645617A

    公开(公告)日:1997-07-08

    申请号:US523868

    申请日:1995-09-06

    摘要: A compact blank for use in operations that require improved thermal stability, impact strength, and abrasion resistance is disclosed. The compact includes a substrate formed of tungsten carbide or other hard material with multiple abrasive diamond crystal layers bonded to the substrate. The abrasive diamond crystals are provided in successive layers of different size particles with the coarsest size particles being farthest away from the substrate. A catalyst is premixed with the diamond crystals in a weight percent which progressively decreases from the layer closest to the substrate through succeeding layers.

    摘要翻译: 公开了一种用于需要改进的热稳定性,冲击强度和耐磨性的操作中的紧凑坯料。 该压块包括由碳化钨或其它硬质材料形成的基底,其中多个研磨金刚石晶体层与基底结合。 研磨金刚石晶体提供在不同尺寸颗粒的连续层中,最粗粒径的颗粒离衬底最远。 催化剂与金刚石晶体预混合,其重量百分比从最接近底层的层逐渐减少,通过后续层。

    High pressure/high temperature piston-cylinder apparatus
    3.
    发明授权
    High pressure/high temperature piston-cylinder apparatus 失效
    高压/高温活塞缸装置

    公开(公告)号:US5244368A

    公开(公告)日:1993-09-14

    申请号:US792716

    申请日:1991-11-15

    摘要: A high pressure/high temperature piston-cylinder-type apparatus has an electrically insulating diamond or cubic boron nitride coating disposed between one or both movable pistons and the surrounding core to electrically isolate the piston or pistons from the surrounding core. The electrically insulating coating is applied to the exterior surface of one or both of the pistons or, alternately, to the inner surface of the core. Electrically insulated, right circular cylindrical pistons are used at both ends of the apparatus resulting in the ability to uniformly compress reaction charges at high temperatures with a much higher length-to-diameter ratio. A ring of electrical insulating material is alternately mounted at the reaction charge end of each piston, with the remaining exterior surface of each piston coated with a thin, elastically insulating layer.

    摘要翻译: 高压/高温活塞缸型设备具有电绝缘金刚石或立方氮化硼涂层,其设置在一个或两个可移动活塞和周围的芯之间,以将活塞或活塞与周围的芯电隔离。 将电绝缘涂层施加到一个或两个活塞的外表面,或者交替地施加到芯的内表面。 在设备的两端使用电绝缘的右圆柱形活塞,从而能够以高得多的长度与直径的比例在高温下均匀地压缩反应电荷。 电绝缘材料环交替地安装在每个活塞的反应充电端,每个活塞的剩余外表面涂覆有薄的弹性绝缘层。

    Composite compact with a more thermally stable cutting edge and method
of manufacturing the same
    4.
    发明授权
    Composite compact with a more thermally stable cutting edge and method of manufacturing the same 失效
    具有更加热稳定的切削刃的复合压块及其制造方法

    公开(公告)号:US5011509A

    公开(公告)日:1991-04-30

    申请号:US390204

    申请日:1989-08-07

    摘要: A compact blank for use in operations that require very high abrasion resistance and a thermally stable cutting edge is disclosed. The compact comprises a substrate formed of tungsten carbide or other hard material with a polycrystalline diamond layer bonded to the substrate. The diamond layer is fabricated by chemical vapor deposition and then subsequently bonded to the tungsten carbide substrate by the application of high pressure and high temperature at diamond stable conditions.

    摘要翻译: 公开了一种用于需要非常高耐磨性和热稳定切削刃的操作中的紧凑坯料。 该压块包括由碳化钨或其他硬质材料形成的基底,其中多晶金刚石层与基底结合。 通过化学气相沉积制造金刚石层,然后通过在金刚石稳定条件下施加高压和高温随后结合到碳化钨基底。

    Polycrystalline diamond composite
    5.
    发明授权
    Polycrystalline diamond composite 失效
    多晶金刚石复合材料

    公开(公告)号:US07595110B2

    公开(公告)日:2009-09-29

    申请号:US10940562

    申请日:2004-09-14

    IPC分类号: B32B9/00

    摘要: An apparatus and method of forming a composite body including the steps of forming a diamond material layer having a first surface from diamond crystals having a nitrogen content of less than 100 ppm; providing a substrate; and bonding the first surface of the diamond material layer and the substrate under high pressure and high temperature. The composite body has a diamond material layer formed from diamond crystals having a nitrogen content of less than 100 ppm. The diamond material layer has a first surface and a substrate. The first surface of the diamond material layer and the substrate are bonded together under high pressure and high temperature.

    摘要翻译: 一种形成复合体的装置和方法,包括以下步骤:从氮含量小于100ppm的金刚石晶体形成具有第一表面的金刚石材料层; 提供衬底; 并且在高压高温下将金刚石材料层的第一表面和基板接合。 复合体具有由氮含量小于100ppm的金刚石晶体形成的金刚石材料层。 金刚石材料层具有第一表面和基底。 金刚石材料层和基板的第一表面在高压和高温下结合在一起。

    High pressure reaction vessel
    6.
    发明授权
    High pressure reaction vessel 失效
    高压反应釜

    公开(公告)号:US5236674A

    公开(公告)日:1993-08-17

    申请号:US826809

    申请日:1992-01-28

    IPC分类号: B01J3/06

    CPC分类号: B01J3/065 B01J3/06

    摘要: A high pressure reaction vessel includes an inner bushing surrounding a reaction charge. The inner bushing is formed of at least one material having a low shear strength that undergoes a polymorphic phase change to a more dense phase within the operating pressure range of the reaction vessel. The bushing may be formed of at least two low shear strength materials with one of the materials undergoing polymorphic phase change to a more dense phase. The one of the two materials which undergoes a polymorphic phase change forms between 10% and 90% of the total volume of the inner bushing. In another embodiment, a pressure transmitting media and an electrical resistance heater tube are concentrically arranged within the inner bushing. The pressure transmitting media is formed of a low shear strength material that undergoes a polymorphic phase change to a more dense phase. In both embodiments, the low shear strength material undergoing polymorphic phase change is potassium bromide.

    摘要翻译: 高压反应容器包括围绕反应装料的内衬套。 内衬套由至少一种具有低剪切强度的材料形成,该材料在反应容器的操作压力范围内经历多晶相转变为更致密相。 衬套可以由至少两种低剪切强度材料形成,其中材料之一经历多晶相转变为更致密的相。 经历多晶相变的两种材料之一形成内衬套总体积的10%至90%。 在另一个实施例中,压力传递介质和电阻加热器管同心地布置在内衬套内。 压力传递介质由经受多相态变为更致密相的低剪切强度材料形成。 在两个实施方案中,经历多晶型相变的低剪切强度材料是溴化钾。

    High strength composite component and method of fabrication
    7.
    发明授权
    High strength composite component and method of fabrication 失效
    高强度复合材料及其制造方法

    公开(公告)号:US5032147A

    公开(公告)日:1991-07-16

    申请号:US153725

    申请日:1988-02-08

    摘要: A composite component suitable for high temperature applications which includes a composite compact that is thermally stable at temperatures up to 1200.degree. C., the composite compact including a thin layer of metal bonded directly to a polycrystalline table in a HP/HT press, and a metallic substrate joined to the thin layer of metal by a high strength braze joint. The method of fabrication includes the steps of: placing a high temperature braze filler metal on the upper surface of the substrate and in contact with the thin layer of metal; applying heat through the table to melt the filler metal and accomplish the high strength joint between the substrate and the thin layer of metal; and cooling the substrate by conducting heat from all but the upper surface thereof.

    摘要翻译: 适用于高温应用的复合材料组合物,其包括在高达1200℃的温度下是热稳定的复合压块,所述复合压实体包括在HP / HT压机中直接结合到多晶台上的金属薄层,以及 通过高强度钎焊接合到金属薄层的金属基底。 制造方法包括以下步骤:将高温钎焊填充金属放置在衬底的上表面上并与金属薄层接触; 通过工作台施加热量以熔化填充金属并实现基底和金属薄层之间的高强度接头; 并且通过从除了其上表面之外的所有其它部件传导热量来冷却基板。

    Polycrystalline abrasive grit
    8.
    发明授权
    Polycrystalline abrasive grit 失效
    多晶磨粒

    公开(公告)号:US4776861A

    公开(公告)日:1988-10-11

    申请号:US890783

    申请日:1986-07-23

    摘要: Diamond or CBN polycrystalline abrasive grit useful in tools for grinding or cutting is made by size reducing and leaching non-diamond or non-CBN material from a compact greater than 1,000 microns in diameter to provide polycrystalline abrasive grit having a size of from about 1 to about 1,000 microns in diameter and having a network of inter-connected, empty pores dispersed throughout.

    摘要翻译: 用于研磨或切割的工具中的金刚石或CBN多晶磨料砂粒通过从直径大于1,000微米的压块的尺寸减小和浸出非金刚石或非CBN材料制成,以提供多晶磨料砂砾,其尺寸为约1至 直径约为1000微米,并且具有分布在整个内部的相互连接的空孔网络。

    HIGH ABRASION LOW STRESS PDC
    9.
    发明申请
    HIGH ABRASION LOW STRESS PDC 审中-公开
    高耐磨低应力PDC

    公开(公告)号:US20120291361A1

    公开(公告)日:2012-11-22

    申请号:US13210681

    申请日:2011-08-16

    IPC分类号: B24D3/10 B01J3/06

    摘要: A polycrystalline diamond cutting element for use in rock drilling or other operations that requires very high abrasion resistance with high transverse rupture strength at temperatures above 700 degrees centigrade. The cutting element includes a diamond layer that contains pre-sintered polycrystalline diamond agglomerate (PPDA) bonded to a supporting substrate. The PPDA can be made thermally stable and can be selected to produce a cutting element with any desired abrasion resistance characteristic without affecting internal stress.

    摘要翻译: 用于岩石钻探或其他操作的多晶金刚石切割元件,其在高于700摄氏度的温度下需要非常高的耐磨性和高的横向断裂强度。 切割元件包括金刚石层,其包含结合到支撑基底的预烧结多晶金刚石附聚物(PPDA)。 PPDA可以制成热稳定的并且可以选择以产生具有任何期望的耐磨特性的切割元件而不影响内部应力。