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22 条记录 (耗时 0.013 秒)

    Composite constructions having ordered microstructures
    1.
    发明授权
    Composite constructions having ordered microstructures 有权
    具有有序微结构的复合结构

    公开(公告)号：US06361873B1

    公开(公告)日：2002-03-26

    申请号：US09499929

    申请日：2000-02-08

    申请人： Zhou Yong ,  Sujian J. Huang ,  Michael A. Siracki ,  Chris Cawthorne ,  J. Albert Sue ,  Ghanshyam Rai ,  Zhigang Fang

    发明人： Zhou Yong ,  Sujian J. Huang ,  Michael A. Siracki ,  Chris Cawthorne ,  J. Albert Sue ,  Ghanshyam Rai ,  Zhigang Fang

    IPC分类号： B22F300

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F2005/001 ,  B24D3/06 ,  B24D99/005 ,  C22C26/00 ,  C22C49/00 ,  C22C2204/00 ,  E21B10/52 ,  E21B10/56 ,  E21B10/5676 ,  Y10T428/30

    摘要： Composite constructions of this invention comprise an ordered microstructure made up of multiple structural units that can be the same or different, and that comprise at least a first structural phase and a second structural phase. The first structural phase comprises a hard material that is selected from the group consisting of cermet materials, PCD, PCBN and mixtures thereof. The second structural phase is in contact with the first phase and comprises a material that is different than that selected to form the first structural phase. Additionally, the second structural phase is in contact with at least a portion of the first structural phase. Composite constructions of this invention can also have a multi-layer structures comprising two or more layers, wherein at least one of the layers comprises a composite construction having an ordered microstructure made up of the multiple structural units described above.

    摘要翻译： 本发明的复合结构包括由相同或不同的多个结构单元构成的并且包括至少第一结构相和第二结构相的有序微结构。 第一结构相包括选自金属陶瓷材料，PCD，PCBN及其混合物的硬质材料。 第二结构相与第一相接触并且包括不同于选择以形成第一结构相的材料。 另外，第二结构相与第一结构相的至少一部分接触。 本发明的复合结构还可以具有包括两层或更多层的多层结构，其中至少一层包括具有由上述多个结构单元构成的有序微结构的复合结构。

    PCD or PCBN cutting tools for woodworking applications
    3.
    发明授权
    PCD or PCBN cutting tools for woodworking applications 失效
    用于木工应用的PCD或PCBN切割工具

    公开(公告)号：US5697994A

    公开(公告)日：1997-12-16

    申请号：US440772

    申请日：1995-05-15

    申请人： Scott M. Packer ,  Arturo A. Rodriguez ,  Stefan Ederyd ,  Ghanshyam Rai

    发明人： Scott M. Packer ,  Arturo A. Rodriguez ,  Stefan Ederyd ,  Ghanshyam Rai

    IPC分类号： B27G13/08 ,  C22C26/00 ,  C22C29/16 ,  C23C24/08 ,  C23C28/04 ,  C23C30/00 ,  B24G3/00

    CPC分类号： C23C30/005 ,  C22C26/00 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/30

    摘要： A cutting tool for woodworking applications has a tungsten carbide substrate and a hard layer bonded to the substrate at high temperature and high pressure, i.e. where diamond or cubic boron nitride is thermodynamically stable. The hard layer comprises polycrystalline diamond or polycrystalline cubic boron nitride, and a supporting cobalt phase including adjuvant alloying materials for providing oxidation and corrosion resistance. Typical alloying elements include nickel, aluminum, silicon, titanium, molybdenum and chromium. Such materials also retard transformation of cobalt from the HCP to the FCC crystal structure at high temperature. The hard layer has an as-pressed surface parallel to the substrate and is only about 0.3 millimeters thick. An additional secondary phase including a carbide, nitride and carbonitride of metals such as titanium may also be present in the PCD or PCBN layer.

    摘要翻译： 用于木工应用的切削工具具有碳化钨基底和在高温高压下与基底结合的硬质层，即金刚石或立方氮化硼在热力学上是稳定的。 硬层包括多晶金刚石或多晶立方氮化硼，以及包含用于提供抗氧化和耐腐蚀性的佐剂合金材料的支撑钴相。 典型的合金元素包括镍，铝，硅，钛，钼和铬。 这种材料还可以阻止钴在高温下从HCP向FCC晶体结构转变。 硬层具有平行于基底的压制表面，并且仅约0.3毫米厚。 包括金属如钛的碳化物，氮化物和碳氮化物的另外的第二相也可以存在于PCD或PCBN层中。

    Non-planar interfaces for cutting elements
    5.
    发明授权
    Non-planar interfaces for cutting elements 失效
    用于切割元件的非平面界面

    公开(公告)号：US6041875A

    公开(公告)日：2000-03-28

    申请号：US986200

    申请日：1997-12-05

    申请人： Ghanshyam Rai ,  Ronald K. Eyre ,  Nathan R. Anderson

    发明人： Ghanshyam Rai ,  Ronald K. Eyre ,  Nathan R. Anderson

    IPC分类号： E21B10/56 ,  E21B10/573 ,  E21B10/46

    CPC分类号： E21B10/5735

    摘要： This invention is directed to cutting elements having an ultra hard cutting layer such as polycrystalline diamond or polycrystalline cubic boron nitride bonded on a cemented carbide substrate. The interface between the substrate and the cutting layer of each such cutting element is non-planar. The non-planar interface is designed to enhance the operating life of the cutting element by reducing chipping, spalling, partial fracturing, cracking and/or exfoliation of the ultra hard cutting layer, and by reducing the risk of delamination of the cutting layer from the substrate.

    摘要翻译： 本发明涉及具有超硬切割层的切割元件，例如结合在硬质合金基底上的多晶金刚石或多晶立方氮化硼。 每个这样的切割元件的基底和切割层之间的界面是非平面的。 非平面界面被设计成通过减少超硬切割层的碎裂，剥落，部分压裂，开裂和/或剥离来提高切割元件的使用寿命，并且通过降低切割层从 基质。

    Synthetic gasket materials for use in high-pressure presses
    6.
    发明授权
    Synthetic gasket materials for use in high-pressure presses 失效
    用于高压压机的合成垫片材料

    公开(公告)号：US5858525A

    公开(公告)日：1999-01-12

    申请号：US874769

    申请日：1997-06-13

    申请人： Lan Carter ,  Xian Yao ,  Ghanshyam Rai

    发明人： Lan Carter ,  Xian Yao ,  Ghanshyam Rai

    IPC分类号： B01J3/06 ,  B30B11/00 ,  B32B5/16 ,  B22F1/00 ,  C22C29/12

    CPC分类号： B30B11/004 ,  B01J3/06 ,  B30B11/007 ,  Y10T428/252 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/26

    摘要： A synthetic gasket material for use in a high-pressure press includes a major proportion of clay mineral powder having sufficient lubricity to flow in a high-pressure press, a minor proportion of at least one hard material powder having a sufficiently greater hardness than the clay mineral to retard flow of the clay mineral and form a seal during pressing in a high-pressure press, and a sufficient amount of binder to form an integral body. The synthetic gasket material is formed by thoroughly mixing together in desired proportions the clay mineral, hard material, and binder. The mixture is compacted into a body near net geometry and having a desired configuration to facilitate use in the high-pressure press. The compacted body is heated for a sufficient time and at a sufficient temperature to remove non-crystallographic water. A synthetic gasket material prepared according to principles of this invention displays improved flow, pressure transmitting, and thermal insulating properties when compared with gasket material made from natural pyrophyllite, due to the improved compositional consistency, i.e., lack of impurities and consistently low moisture content, of the synthetic gasket material.

    摘要翻译： 用于高压压机的合成垫圈材料包括主要部分的粘土矿物粉末具有足够的润滑性以在高压压力机中流动，少量的至少一种硬质材料粉末具有比粘土足够大的硬度 矿物，以阻止粘土矿物的流动并在高压压机中压制期间形成密封，以及足够量的粘合剂以形成整体。 合成垫片材料通过以所需比例将粘土矿物，硬质材料和粘合剂充分混合在一起形成。 混合物被压实成靠近网状几何体的本体，并且具有期望的构造以便于在高压压机中使用。 将压实体加热足够的时间并在足够的温度下除去非结晶水。 根据本发明原理制备的合成垫圈材料与天然叶蜡石制成的垫圈材料相比，显示出改进的流动性，压力传递和绝热性能，这是由于改进的组合物一致性，即缺乏杂质和始终如一的低含水量， 的合成垫片材料。

    Method of making a polycrystalline cubic boron nitride cutting tool
    7.
    发明授权
    Method of making a polycrystalline cubic boron nitride cutting tool 失效
    制造多晶立方氮化硼切割工具的方法

    公开(公告)号：US5830813A

    公开(公告)日：1998-11-03

    申请号：US792959

    申请日：1997-01-22

    申请人： Xian Yao ,  Matthew W. Collier ,  Madapusi K. Keshavan ,  Ghanshyam Rai

    发明人： Xian Yao ,  Matthew W. Collier ,  Madapusi K. Keshavan ,  Ghanshyam Rai

    IPC分类号： B23B27/14 ,  B24D3/00 ,  B24D18/00 ,  C04B35/5831 ,  C09K3/14 ,  C22C26/00 ,  C04B35/5835

    CPC分类号： C04B35/5831 ,  C09K3/1436 ,  C22C26/00 ,  Y10T428/2991 ,  Y10T428/2993

    摘要： A polycrystalline cubic boron nitride cutting tool is from 50 to 85% by weight cubic boron nitride crystals bonded together as a polycrystalline mass. A supporting phase commingled with the polycrystalline cubic boron nitride is made from 15 to 40% by weight of a refractory material which is preferably titanium carbonitride or titanium aluminum carbonitride. The starting composition also comprises from 4 to 10% by weight of Co.sub.2 Al.sub.9. Mixed powders of these ingredients are treated in ammonia at a temperature in the range of from 1000.degree. to 1250.degree. C., which significantly increases the nitrogen content and reduces carbon content of titanium carbonitride. Instead of mixed powders of the starting materials, coated particles may be used such as cubic boron nitride coated with titanium carbonitride, or titanium carbonitride coated with cobalt, aluminum or cobalt aluminide. Hexagonal boron nitride may be substituted as a starting material for a portion of the cubic boron nitride.

    摘要翻译： 多晶立方氮化硼切割工具是以多晶体结合在一起的50至85重量％的立方氮化硼晶体。 与多晶立方氮化硼混合的支撑相由15至40重量％的耐火材料制成，耐火材料优选为碳氮化钛或碳氮化钛铝。 起始组合物还包含4至10重量％的Co 2 Al 9。 这些成分的混合粉末在氨水中在1000〜1250℃的温度范围内处理，显着提高了氮含量，降低了碳氮化钛的碳含量。 代替起始材料的混合粉末，可以使用涂覆的颗粒，例如涂覆有碳氮化钛的立方氮化硼或涂覆有钴，铝或钴铝的碳氮化钛。 六方氮化硼可以被取代为一部分立方氮化硼的起始材料。

    Diamond and CBN cutting tools
    10.
    发明授权
    Diamond and CBN cutting tools 失效
    钻石和CBN切割工具

    公开(公告)号：US5441817A

    公开(公告)日：1995-08-15

    申请号：US145365

    申请日：1993-10-29

    申请人： Ghanshyam Rai

    发明人： Ghanshyam Rai

    IPC分类号： C04B37/02 ,  C23C30/00 ,  B22F3/14

    CPC分类号： C23C30/005 ,  C04B37/025 ,  C04B2237/08 ,  C04B2237/083 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/708 ,  C04B2237/72 ,  Y10T428/12028 ,  Y10T428/12049 ,  Y10T428/12056

    摘要： There is provided a method for making diamond and CBN composites, under HP/HT conditions, which comprises bonding a thin refractory material layer on the planar face of the tungsten carbide substrate proximate the diamond or CBN layer. There is also provided a small quantity of fine particles of yet another refractory material admixed in the diamond or CBN layer. The cooperation of these two systems greatly aid in regulating the flow of molten carbide bond metal from the substrate into the diamond or CBN layer, which minimizes abnormal grain growth and bond metal depletion at the diamond/substrate interface.

    摘要翻译： 提供了一种在HP / HT条件下制备金刚石和CBN复合材料的方法，其包括在金刚石或CBN层附近的碳化钨基板的平面上粘合薄的耐火材料层。 还提供了少量在金刚石或CBN层中混合的另一种难熔材料的细颗粒。 这两种系统的配合大大有助于调节熔融碳化物接合金属从衬底到金刚石或CBN层的流动，从而最小化金刚石/衬底界面处的异常晶粒生长和结合金属损耗。