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48 条记录 (耗时 0.039 秒)

    Hard sintered compact for tools
    41.
    发明授权
    Hard sintered compact for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US5395700A

    公开(公告)日：1995-03-07

    申请号：US904353

    申请日：1992-06-25

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： B22F7/06 ,  B23B27/14 ,  C23C30/00

    CPC分类号： B23B27/145 ,  B22F7/06 ,  C23C30/005 ,  B22F2005/001 ,  B23B2222/04 ,  B23B2226/125 ,  Y10T428/12028 ,  Y10T428/12049 ,  Y10T428/12056 ,  Y10T428/1209 ,  Y10T428/12139 ,  Y10T428/12146 ,  Y10T428/12167 ,  Y10T428/12174

    摘要： In this invention, a cutting tool comprises two layers of hard sintered compact of cBN. The first sintered compact layer comprises about 75-98% by volume of cBN and a first binder material. The first binder material comprises from about 1 to out 40% by weight of Al. The second sintered compact layer comprises from about 40 to about 65% by volume of cBN and a second binder material. The second binder material comprises about 2 to about 30% by weight of Al. The first sintered compact layer is bonded to the second sintered compact layer. This composite material is bonded directly or indirectly to a tool holder to form a cutting tool. The first sintered compact layer constitutes a rake face of the cutting tool.

    摘要翻译： 在本发明中，切削工具包括两层cBN的硬质烧结体。 第一烧结体层包含约75-98体积％的cBN和第一粘合剂材料。 第一粘合剂材料包含约1至40重量％的Al。 第二烧结致密层包含约40至约65体积％的cBN和第二粘合剂材料。 第二粘合剂材料包含约2至约30重量％的Al。 第一烧结体层与第二烧结体层接合。 该复合材料直接或间接地结合到工具夹以形成切割工具。 第一烧结体层构成切削工具的前刀面。

    Method of manufacturing a diamond heat sink
    42.
    发明授权
    Method of manufacturing a diamond heat sink 失效
    制造金刚石散热器的方法

    公开(公告)号：US5294381A

    公开(公告)日：1994-03-15

    申请号：US964390

    申请日：1992-10-29

    申请人： Takahisa Iguchi ,  Tsutomu Nakamura ,  Tetsuo Nakai

    发明人： Takahisa Iguchi ,  Tsutomu Nakamura ,  Tetsuo Nakai

    IPC分类号： H01L21/48 ,  H01L23/373 ,  H01L21/302

    CPC分类号： H01L21/4803 ,  H01L23/3732 ,  H01L2924/0002

    摘要： A polycrystalline diamond is prepared by chemical vapor deposition (step 101). A surface of the polycrystalline diamond is metallized (step 102). The metallized surface of the polycrystalline diamond is grooved with a YAG laser (step 103). A wedge or the like is driven into the grooves of the polycrystalline diamond to pressurize the same, whereby the polycrystalline diamond is divided along the grooves (step 104). Alternatively, a surface of a polycrystalline diamond prepared by chemical vapor deposition is grooved with a YAG laser (step 112), so that the surface of the polycrystalline diamond is metallized (step 113) after the grooving.

    摘要翻译： 通过化学气相沉积制备多晶金刚石（步骤101）。 将多晶金刚石的表面金属化（步骤102）。 多晶金刚石的金属化表面用YAG激光器开槽（步骤103）。 将楔形物等驱动到多晶金刚石的槽中以对其加压，由此多晶金刚石沿凹槽分开（步骤104）。 或者，通过化学气相沉积制备的多晶金刚石的表面用YAG激光器（步骤112）开槽，使得在开槽之后多晶金刚石的表面被金属化（步骤113）。

    Hard sintered compact for tools
    46.
    发明授权
    Hard sintered compact for tools 失效
    用于工具的硬质烧结体

    公开(公告)号：US4911756A

    公开(公告)日：1990-03-27

    申请号：US230618

    申请日：1988-08-09

    申请人： Tetsuo Nakai ,  Mitsuhiro Goto

    发明人： Tetsuo Nakai ,  Mitsuhiro Goto

    IPC分类号： C22C1/05 ,  B01J3/06 ,  B22F3/14 ,  B22F3/15 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/14 ,  C22C29/16

    CPC分类号： B01J3/062 ,  C04B35/5831 ,  C22C26/00 ,  C22C29/16 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005

    摘要： A sintered compact is obtained by sintering a mixture containing about 50 to 75 percent by volume of cubic boron nitride and about 25 to 50 percent of a binder under cBN-stable superhigh pressure conditions. The binder contains about 20 to 50 percent by weight of Al and one or more Ti compounds selected from the group consisting of TiN.sub.z, Ti(C,N).sub.z, TiC.sub.2, (Ti,M)C.sub.z, (Ti,M) (C,N).sub.z and (Ti,M)N.sub.z, wherein M indicates a transition metal of the group IVa, Va or VIa of the periodic table excepting Ti, and wherein z is within a range of 0.5.ltoreq.z.ltoreq.0.85. The atomic ratio of the content of Ti to that of the transition metal M in the binder is within the range of about2/1.ltoreq.Ti/M.ltoreq.97/3.The binder further contains tungsten or one or more tungsten compounds, whereby the total tungsten concentration in the binder is about 4 to 40 percent by weight.

    摘要翻译： 通过在cBN稳定的超高压条件下烧结含有约50至75体积％的立方氮化硼和约25至50％的粘合剂的混合物来获得烧结体。 所述粘合剂含有约20〜50重量％的Al和选自TiNz，Ti（C，N）z，TiC 2，（Ti，M）Cz，（Ti，M）（C ，N）z和（Ti，M）Nz，其中M表示除了Ti之外的元素周期表的基团IVa，Va或VIa的过渡金属，并且其中z在0.5≤z≤0.85的范围内 。 粘合剂中Ti与过渡金属M含量的原子比在约2/1 Ti / M = 97/3的范围内。 粘合剂还含有钨或一种或多种钨化合物，由此粘合剂中的总钨浓度为约4-40重量％。

    High hardness sintered compact and process for producing the same
    47.
    发明授权
    High hardness sintered compact and process for producing the same 失效
    高硬度烧结体及其制造方法

    公开(公告)号：US4828611A

    公开(公告)日：1989-05-09

    申请号：US140921

    申请日：1987-12-28

    申请人： Tetsuo Nakai ,  Syuzi Yazu ,  Keizo Asai ,  Yoshiaki Kumazawa

    发明人： Tetsuo Nakai ,  Syuzi Yazu ,  Keizo Asai ,  Yoshiaki Kumazawa

    IPC分类号： B01J3/06 ,  C22C26/00

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

    摘要： Herein is disclosed a high hardness sintered diamond compact and a process for the production of the same.The high hardness sintered diamond compact comprises 80 to 95% by volume of diamond particles, 0.5 to 5% by volume of a carbide particles selected from a group consisting of WC and (Mo,W)C and having a diameter not larger than 1 micron, and 4.5 to 15% by volume of an iron group metal, at least 95% by volume of said diamond particles having a diameter from 0.1 to 2 micron and the remainder of the diamond particles being particles having a diameter smaller than 0.1 micron.The ratio by volume of the amount of the diamond particles having a diameter from 1 to 2 micron to that of the diamond particles having a diameter from 0.1 to 1 micron ranges from 4 to 1.The high hardness sintered diamond compact according to the present invention is preferably usable as a drawing die for drawing a high hardness plated-steel wire and as a tool bit.The process according to the invention, comprises the steps of:preparing a diamond powder having a particle diameter distribution from 0.2 to 2 micron;mixing the diamond powder with an iron group metal and one member selected from the group consisting of WC and (Mo,W)C powders each having a particle diameter not larger than 1 micron;hot-pressing the thus obtained mixture of powders at an ultra-high pressure and a high temperature where diamond may be stable.

    摘要翻译： 本文公开了一种高硬度烧结金刚石复合体及其制造方法。 高硬度烧结金刚石复合体包含80至95体积％的金刚石颗粒，0.5至5体积％的选自WC和（Mo，W）C且直径不大于1微米的碳化物颗粒 和4.5至15体积％的铁族金属，至少95体积％的所述金刚石颗粒的直径为0.1至2微米，其余金刚石颗粒为直径小于0.1微米的颗粒。 直径为1至2微米的金刚石颗粒的量与直径为0.1至1微米的金刚石颗粒的量的体积比为4:1。根据本发明的高硬度烧结金刚石复合体 优选可用作拉拔高硬度镀钢丝和作为刀头的拉丝模。 根据本发明的方法包括以下步骤：制备具有0.2至2微米的粒径分布的金刚石粉末; 将金刚石粉末与铁族金属和选自WC和（Mo，W）C粉末组成的组中的一种物质混合，所述粉末各自具有不大于1微米的粒径; 在超高压和高温下热压由此获得的粉末混合物，其中金刚石可以是稳定的。