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    Wire drawing die
    31.
    发明公开
    Wire drawing die 有权
    Drahtziehmatrize

    公开(公告)号：EP2647444A3

    公开(公告)日：2013-10-30

    申请号：EP13157166.3

    申请日：2008-01-18

    申请人： Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp. ,  Sumitomo Electric Hardmetal Corp.

    发明人： Sumiya, Hitoshi ,  Yukawa, Makoto

    IPC分类号： B21C3/02 ,  C04B35/52 ,  C04B35/645 ,  B01J3/06

    CPC分类号： B21C3/025 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B21C3/18 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/645 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/656 ,  C04B2235/781 ,  C04B2235/783 ,  C04B2235/785 ,  C30B29/605

    摘要： One object of the present invention is to provide a wire drawing die excellent in strength and wear resistance. The wire drawing die has a core formed using highly hard diamond polycrystalline body made substantially only of diamond and produced by directly converting a raw material composition including a non-diamond type carbon material into diamond and sintering the diamond at an ultra high pressure and an ultra high temperature without adding a sintering aid or a catalyst, the polycrystalline body having a mixed construction including fine-grained diamond crystals with a maximum grain size of less than or equal to 100 nm and an average grain size of less than or equal to 50 nm and plate-like or particulate coarse-grained diamond crystals with a minimum grain size of greater than or equal to 50 nm and a maximum grain size of less than or equal to 10000 nm.

    摘要翻译： 本发明的一个目的是提供一种强度和耐磨性优异的拉丝模具。 拉丝模具具有使用基本上仅由金刚石制成的高硬度金刚石多晶体形成的芯体，其通过将包含非金刚石型碳材料的原料组合物直接转化为金刚石并以超高压和超高压烧结金刚石 高温而不添加烧结助剂或催化剂，所述多晶体具有混合结构，其包含最大粒度小于或等于100nm的细晶粒金刚石晶体和小于或等于50nm的平均晶粒尺寸 以及最小晶粒尺寸大于或等于50nm且最大晶粒尺寸小于或等于10000nm的板状或颗粒状粗粒金刚石晶体。

    POLYCRYSTALLINE SUPERHARD MATERIAL
    32.
    发明公开
    POLYCRYSTALLINE SUPERHARD MATERIAL 审中-公开
    多晶超级材料

    公开(公告)号：EP2560749A2

    公开(公告)日：2013-02-27

    申请号：EP11724034.1

    申请日：2011-04-20

    申请人： ELEMENT SIX ABRASIVES S.A.

    发明人： FRIES, Robert

    IPC分类号： B01J3/06

    摘要： A polycrystalline superhard material comprises a sintered mass of superhard grains having a mean superhard grain contiguity of at least 62 percent and at most 92 percent. There is also disclosed a method of making such a polycrystalline superhard material. The method comprises providing a precursor body comprising superhard grains and interstices between the superhard grains, and introducing additive particles into the interstices to form a pre-sinter body. The pre-sinter body is submitted to a temperature and pressure at which superhard material is thermodynamically stable, sintering it and forming polycrystalline superhard material.

    摘要翻译： 多晶超硬材料包含超硬晶粒的烧结块，其平均超硬晶粒邻接度为至少62％且至多92％。 还公开了制造这种多晶超硬材料的方法。 该方法包括提供包含超硬晶粒和超硬晶粒之间的间隙的前体，并将添加剂颗粒引入间隙中以形成预烧结体。 预烧结体受到超硬材料热力学稳定的温度和压力，将其烧结并形成多晶超硬材料。

    Fabrication of high performance densified nanocrystalline bulk thermoelectric materials using high pressure sintering technique
    34.
    发明公开
    Fabrication of high performance densified nanocrystalline bulk thermoelectric materials using high pressure sintering technique 有权
    纳米晶hochleistungsverdichtetem热电基体材料的，通过使用高压烧结技术制备

    公开(公告)号：EP2255906A1

    公开(公告)日：2010-12-01

    申请号：EP09010398.7

    申请日：2009-08-12

    申请人： Yanshan University

    发明人： Tian, Yongjun ,  Yu, Fengrong ,  Yu, Dongli ,  Zhang, Jianjun ,  Xu, Bo ,  Liu, Zhongyuan ,  He, Julong

    IPC分类号： B22F1/00 ,  B22F3/14 ,  B22F3/16 ,  B22F9/04 ,  B01J3/06 ,  H01L35/16 ,  H01L35/18 ,  H01L35/22 ,  H01L35/34

    CPC分类号： B22F9/04 ,  B22F1/0018 ,  B22F3/14 ,  B22F3/16 ,  B22F2009/041 ,  B82Y30/00 ,  H01L35/16 ,  H01L35/34

    摘要： The present invention provides a method for the fabrication of high performance densified nanocrystalline bulk thermoelectric material, comprising: (1) preparing a thermoelectric alloy nanopowders by a ball milling process to achieve an average crystal size of 5 -30 nm, and (2) preparing the nanocrystalline bulk thermoelectric material by high pressure sintering at a temperature of 0.25 - 0.8T m under a pressure of 0.8 - 6.0 GPa for 10 - 120 minutes, to achieve a relative density of 90 - 100 % and an average grain size of 10 - 50 nm. The method is easy to operate and allows the production of a thermoelectric material with a ZT value higher than 2. In addition, the method can ensure both good thermoelectric properties and high density, and therefore have important applications for energy industry.

    摘要翻译： 本发明提供了一种高性能的致密化的纳米晶块体热电材料的制造方法，其包括：（1）通过球磨方法制备的热电合金纳米粉末，以实现上的5 -30纳米平均晶体尺寸;和（2）制备 通过高压烧结纳米晶块体热电材料在0.25的温度 - 0.8T米0.8的压力下 - 为6.0GPa为10〜120分钟，以达到90〜100％和10平均晶粒尺寸，相对密度 - 50纳米，该方法易于操作，并允许生产的热电材料的具有ZT值高于2此外，所述方法可确保既有良好的热电特性和高密度，并因此具有用于能源产业重要的应用。

    METHOD FOR PRODUCING A PCD COMPACT
    35.
    发明公开
    METHOD FOR PRODUCING A PCD COMPACT 有权
    用于生产紧凑型PCDS

    公开(公告)号：EP2240265A1

    公开(公告)日：2010-10-20

    申请号：EP09757977.5

    申请日：2009-06-03

    申请人： Element Six (Production) (Pty) Ltd.

    发明人： SITHEBE, Humphrey, Samkelo, Lungisani

    IPC分类号： B01J3/06 ,  B22F7/06

    CPC分类号： B01J3/065 ,  B01J2203/063 ,  B01J2203/0655 ,  B22F7/062 ,  C22C26/00 ,  C22C2204/00

    摘要： A method of producing a composite diamond compact comprising a polycrystalline diamond (PCD) compact bonded to a cemented carbide substrate is provided. The method includes the steps of: providing a PCD table, preferably a PCD table with diamond-to-diamond bonding and a porous microstructure in which the pores are empty of second phase material bringing together the PCD table and a cemented carbide substrate in the presence of a bonding agent to form an unbonded assembly; subjecting the unbonded assembly to an initial compaction at a pressure of at least 4.5 GPa and a temperature below the melting point of the bonding agent for a period of at least 150 seconds; and thereafter subjecting the unbonded assembly to a temperature above the melting point of the bonding agent and a pressure of at least 4.5 GPa for a time sufficient for the bonding agent to become molten and bond the PCD table to the substrate to form a composite diamond compact.

    POLYCRYSTALLINE DIAMOND COMPOSITES
    37.
    发明公开
    POLYCRYSTALLINE DIAMOND COMPOSITES 审中-公开
    聚晶金刚石组合物

    公开(公告)号：EP2152397A2

    公开(公告)日：2010-02-17

    申请号：EP08751138.2

    申请日：2008-05-06

    申请人： Element Six (Production) (Pty) Ltd.

    发明人： DAVIES, Geoffrey John ,  PETERS, Gerrard

    IPC分类号： B01J3/06

    CPC分类号： B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C22C26/00 ,  Y10T428/25

    摘要： A method of producing a PCD body includes the step of providing a region of coarser diamond particles between a source of binder phase and a region of fine grained diamond particles having a particle size less than 2 μm. The binder phase is caused to infiltrate the diamond mass through the region of coarser diamond particles under elevated temperature and pressure conditions suitable to produce PCD. The invention further provides for a PCD diamond composite manufactured by the method of the invention wherein the PCD body is substantially free of abnormal diamond growth

    HIGH PRESSURE CRYSTAL GROWTH APPARATUSES AND ASSOCIATED METHODS
    40.
    发明公开
    HIGH PRESSURE CRYSTAL GROWTH APPARATUSES AND ASSOCIATED METHODS 审中-公开
    高压晶体生长设备及相关方法

    公开(公告)号：EP1704033A4

    公开(公告)日：2009-04-22

    申请号：EP05722430

    申请日：2005-01-12

    申请人： SUNG CHIEN-MIN

    发明人： SUNG CHIEN-MIN

    IPC分类号： B29C43/02 ,  B01J3/06 ,  B30B11/00 ,  C30B1/00

    CPC分类号： B30B11/004 ,  B01J3/067 ,  B30B11/007 ,  C30B7/00

    摘要： An improved high pressure apparatus (10) can include a plurality of complementary die segments (12, 14). The die segments can have inner surfaces (16) which are shaped to form a die chamber (20) upon assembly of the die segments (12, 14). A pair of anvils (70, 72) can be oriented such that an anvil is at each end of the die chamber (20). To prevent the die segments (12, 14) from being forced apart during movement of the anvils (70, 72), force members can be connected to the die segments (12, 14). The force members (21, 23) can apply discrete forces to the die segments (12, 14) sufficient to retain the die segments in substantially fixed positions relative to each other during application of force by the pair of anvils (70, 72). Using such a high pressure apparatus can achieve pressures as high as 10 GPa with improved useful die life and larger reaction volumes.