Composite compact of interleaved polycrystalline particles and cemented
carbide masses
    3.
    发明授权
    Composite compact of interleaved polycrystalline particles and cemented carbide masses 失效
    交错多晶颗粒和硬质合金块的复合材料

    公开(公告)号:US4255165A

    公开(公告)日:1981-03-10

    申请号:US972345

    申请日:1978-12-22

    Abstract: One or more masses of bonded particles of diamond, cubic boron nitride (CBN), and wurtzite boron nitride (WBN) are sandwiched between or encapsulated by two masses of cemented carbide bonded to the particle masses. In the preferred embodiment, the particle masses are comprised of (1) at least 70% by volume of said particles, and (2) a metallic phase comprised of the cementing agent of the carbide mass. The composite compacts find utility in drill bit, mining tool and wear part applications.A method for making such a composite compact comprises (1) placing within a reaction cell masses of abrasive particles and at least two carbide masses interleaved with the abrasive particle masses, (2) the masses are placed in the cell in such a manner to allow for the accommodation of pressure and (3) simultaneously subjecting the cell and the contents thereof to temperature and pressure conditions at which the particles are stable.A method for abrading or cutting a workpiece with a composite compact comprises providing (1) a tubular carbide mass and a bonded mass of abrasive particles disposed in and bonded to the carbide mass in a central cavity thereof and (2) moving either the compact or workpiece relative to the other to provide the cutting or abrading action.

    Abstract translation: 金刚石,立方氮化硼(CBN)和纤锌矿氮化硼(WBN)的一个或多个粘结颗粒的质量被两个质量接合到颗粒物质上的硬质合金夹在或包封之间。 在优选的实施方案中,颗粒物质包括(1)至少70体积%的所述颗粒,和(2)由碳化物块的固化剂组成的金属相。 复合材料可用于钻头,采矿工具和磨损零件应用。 制造这样的复合压块的方法包括(1)在反应池内放置磨料颗粒和至少两个碳化物质量块与磨料颗粒块交错,(2)质量以这样一种方式放置在电池中: 用于调节压力和(3)同时使细胞及其内容物受到颗粒稳定的温度和压力条件。 一种用复合压块研磨或切割工件的方法包括提供(1)管状碳化物块和在其中心腔中设置并结合到碳化物块的磨料颗粒的粘合块,以及(2)移动压块或 工件相对于另一个提供切割或研磨作用。

    Process for making diamond and cubic boron nitride compacts
    4.
    发明授权
    Process for making diamond and cubic boron nitride compacts 失效
    制造金刚石和立方氮化硼压块的方法

    公开(公告)号:US4536442A

    公开(公告)日:1985-08-20

    申请号:US488003

    申请日:1983-05-02

    Abstract: Optical windows for hostile environments have been made from diamond and adamantine boron nitride compacts. The compact windows can comprise a single layer of large crystals bonded in a matrix. For example, they are made by exposing a sample of diamond (425-1700 micron) in a diamond and graphite matrix to high pressure-high temperature conditions (e.g., 50 Kbar at 1400.degree. C. to 85 Kbar at 1800.degree. C.).A typical boron nitride reaction zone assembly (cell) is shown in FIG. 1, in which carbon heater tube 1 is surrounded by tantalum foil sleeve 2. The sample of pyrolytic boron nitride 3 is disposed between carbon discs 5, tantalum foil discs 4 and hot pressed boron nitride plugs 6.The optical windows produced are capable of transmitting infrared light and visible light.

    Abstract translation: 用于恶劣环境的光学窗口由金刚石和金刚砂氮化硼压块制成。 紧凑的窗户可以包括以矩阵结合的单层大晶体。 例如,它们通过将金刚石和石墨基质中的金刚石样品(425-1700微米)暴露于高压高温条件(例如,在1400℃的50Kbar至1800K下的85Kbar)来制备。 。 图1中示出了典型的氮化硼反应区组件(电池)。 1,其中碳加热器管1被钽箔套筒2包围。热解氮化硼3的样品设置在碳盘5,钽箔片4和热压氮化硼插头6之间。所生产的光学窗口能够传输 红外光和可见光。

    Sweep through process for making polycrystalline compacts
    5.
    发明授权
    Sweep through process for making polycrystalline compacts 失效
    扫描制造多晶压块的工艺

    公开(公告)号:US4518659A

    公开(公告)日:1985-05-21

    申请号:US536221

    申请日:1983-09-23

    Abstract: The high pressure/high temperature catalyst sweep through process for making diamond and cubic boron nitride compacts has been improved by adding an intermediate metal or metal alloy. The added metal (whether alone or contained in an alloy) has a melting point below that of the catalyst (e.g. cobalt), is miscible with the catalyst, and preferably sweeps through the mass of abrasive crystals first. This modification has reduced flaw formation in such compacts.

    Abstract translation: 通过添加中间金属或金属合金,改善了制备金刚石和立方氮化硼压块的高压/高温催化剂扫过方法。 添加的金属(无论是单独还是包含在合金中)的熔点低于催化剂(例如钴)的熔点,与催化剂是可混溶的,并且优选首先扫过研磨晶体。 这种改进减少了这种结构中的缺陷形成。

    Method for reducing damage to diamond crystals during sintering
    6.
    发明授权
    Method for reducing damage to diamond crystals during sintering 失效
    烧结时减少金刚石晶体损伤的方法

    公开(公告)号:US4466938A

    公开(公告)日:1984-08-21

    申请号:US436251

    申请日:1982-10-25

    Abstract: A process improvement is disclosed for making compacts containing diamond which reduces crystal flaws within the diamond. This is accomplished by isolating the single diamond crystals in an compressible matrix before exposing the sample to sintering conditions. One method for doing this (described with reference to FIG. 1) is embedding the diamond 14 in a mixture 16 of graphite and diamond fines. This mixture is disposed between two graphite discs 18 and 19 and two cobalt discs 22 and 23. This sub-assembly is contained within zirconium cup 10 on top of which is placed zirconium disc 12 and exposed to high pressure-high temperature sintering conditions.

    Abstract translation: 公开了一种用于制造含有金刚石的压块的工艺改进,其减少了金刚石内的晶体缺陷。 这是通过在将样品暴露于烧结条件之前将单个金刚石晶体分离在可压缩基体中来实现的。 这样做的一种方法(参照图1描述)将金刚石14嵌入石墨和金刚石细粉的混合物16中。 该混合物设置在两个石墨盘18和19以及两个钴盘22和23之间。该子组件包含在锆杯10内,锆杯10的顶部放置有锆盘12并暴露于高压 - 高温烧结条件。

    Temperature resistant abrasive compact and method for making same
    7.
    发明授权
    Temperature resistant abrasive compact and method for making same 失效
    耐温磨料压块及其制造方法

    公开(公告)号:US4224380A

    公开(公告)日:1980-09-23

    申请号:US890898

    申请日:1978-03-28

    Abstract: In one embodiment, a compact for tools, such as cutting, drilling and shaping tools, consists essentially of self-bonded abrasive particles. The bonded particles define a substantially continuous interconnected network of pores, dispersed throughout the compact. The method for making such a compact comprises the steps of bonding a mass of abrasive particles, aided by a sintering aid material, under high temperatures and pressures (HP/HT) to form an abrasive body comprised of said particles in a self-bonded form and said material infiltrated throughout the body. The body is then treated to remove substantially all infiltrated material, thereby to produce a compact consisting essentially of the self-bonded abrasive particles. In another embodiment, a composite compact which is made in a similar manner to the first embodiment consists essentially of a layer of self-bonded abrasive particle and a substrate layer (preferably of cemented carbide) bonded to the abrasive particle layer.

    Abstract translation: 在一个实施例中,用于诸如切割,钻孔和成形工具的工具的紧凑件基本上由自粘合磨料颗粒组成。 键合的颗粒限定分散在整个压块中的基本上连续的互连的孔网。 制造这种紧凑件的方法包括以下步骤:在高温和高压(HP / HT)下由烧结助剂材料辅助的大量研磨颗粒粘结,以形成由自粘结形式的所述颗粒组成的研磨体 并说物质渗入整个身体。 然后处理本体以基本上除去所有渗透的材料,从而产生基本上由自粘合磨料颗粒组成的压块。 在另一个实施例中,以与第一实施例相似的方式制成的复合压块基本上由结合到磨料颗粒层的自粘合研磨颗粒和基底层(优选地由硬质合金)组成。

    Process for making diamond and cubic boron nitride compacts
    10.
    发明授权
    Process for making diamond and cubic boron nitride compacts 失效
    制造金刚石和立方氮化硼压块的方法

    公开(公告)号:US4525179A

    公开(公告)日:1985-06-25

    申请号:US542081

    申请日:1983-10-14

    Applicant: Paul D. Gigl

    Inventor: Paul D. Gigl

    Abstract: The high pressure/high temperature (HP/HT) process for making diamond or CBN compacts has been modified by placing partitions within the crystal mass before HP/HT processing. With reference to FIG. 3, within the shield metal sleeve 11 and shield metal cup 14 are placed pliable metal shapes 20 in a honeycomb pattern. The abrasive crystals within the tubes 18 and outside the tubes 26 is sintered, and a compact containing the tubes embedded therein results. This compact can be acid leached to give a plurality of small compacts which need little if any additional shaping. The partitions can also be left intact as chip arresters.

    Abstract translation: 通过在HP / HT处理之前将分区放置在晶体质量内,已经修改了用于制造金刚石或CBN压块的高压/高温(HP / HT)工艺。 参考图1。 如图3所示,在屏蔽金属套筒11和屏蔽金属杯14内设有柔软的金属形状20,呈蜂窝状。 管18内和管26外的磨料晶体被烧结,并且包含嵌入其中的管的压实结果。 这种压块可以被酸浸,以产生多个需要很少的任何附加成形的小型压块。 隔板也可以作为避雷器保持不动。

Patent Agency Ranking