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    Method for production of high-pressure phase sintered article of boron nitride for use in cutting tool and sintered article produced by the method
    1.
    发明授权
    Method for production of high-pressure phase sintered article of boron nitride for use in cutting tool and sintered article produced by the method 失效
    生产用于切割工具的硼酸盐的高压相烧结物品的方法和由该方法生产的烧结物品

    公开(公告)号：US5200372A

    公开(公告)日：1993-04-06

    申请号：US635985

    申请日：1990-12-31

    申请人： Yutaka Kuroyama ,  Nasami Maeno

    发明人： Yutaka Kuroyama ,  Nasami Maeno

    IPC分类号： B23B27/14 ,  C22C1/05 ,  C22C26/00 ,  C22C29/02 ,  C22C29/14 ,  C22C29/16

    CPC分类号： C22C26/00 ,  C22C2026/005 ,  C22C2026/006

    摘要： A sintered article is produced by mixing an intermetallic compound (binding phase) composed of at least one member selected from among carbides, nitrides, and borides of the elements of Groups 4a, 5a, and 6a in the Periodic Table of Elements and at least one element selected from among Al, Ni, Si, Co, Zr, and W with wBN, then mixing the resultant mixture with cBN and firing the produced mixture under a pressure exceeding 20 Kb at a temperature exceeding 1,000.degree. C. As a material for cutting tools, the sintered article is superior in quality to the conventional sintered article.

    摘要翻译： 通过将元素周期表中的4a，5a和6a族元素中的至少一种选自碳化物，氮化物和硼化物中的至少一种组成的金属间化合物（结合相）与至少一种 元素选自Al，Ni，Si，Co，Zr和W与wBN，然后将所得混合物与cBN混合，并在超过1000℃的温度下在超过20Kb的压力下焙烧所制得的混合物。作为切割材料 工具，烧结制品的质量优于常规烧结制品。

    Cutting tool assembly
    4.
    发明授权
    Cutting tool assembly 失效
    切割工具组装

    公开(公告)号：US5183362A

    公开(公告)日：1993-02-02

    申请号：US861336

    申请日：1992-03-30

    申请人： Yutaka Kuroyama ,  Masami Maeno ,  Ikuo Sakakibara

    发明人： Yutaka Kuroyama ,  Masami Maeno ,  Ikuo Sakakibara

    IPC分类号： B23B27/14

    CPC分类号： B23B27/141 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2222/84 ,  B23B2226/125 ,  B23B2226/31 ,  B23B2240/08 ,  Y10T407/245 ,  Y10T407/26 ,  Y10T407/27

    摘要： Disclosed is a cutting tool assembly employing a composite hard sintered body as a cutting part comprising a support and a cutting edge; wherein the cutting part is secured on a base made of a cemented carbide or a hard alloy having at least one edge where a recess is formed, the cutting part being formed by bonding a hard sintered body constituting the cutting edge and a cemented carbide or a cermet consituting the support, and said cutting part being secured in the recess by soldering in such a way that the support side may face the recess.

    摘要翻译： 公开了一种采用复合硬质烧结体作为包括支撑件和切割刃的切割部分的切割工具组件; 其中切割部分固定在由具有至少一个形成有凹部的边缘的硬质合金或硬质合金制成的基座上，切割部分通过将构成切削刃的硬质烧结体与硬质合金或 金属陶瓷构成支撑件，并且所述切割部分通过焊接固定在凹部中，使得支撑面可面向凹部。

    Amorphous metal-metal composite article, a method for producing the same, and a torque sensor using the same
    5.
    发明授权
    Amorphous metal-metal composite article, a method for producing the same, and a torque sensor using the same 失效
    无定形金属 - 金属复合制品，其制造方法和使用该无定形金属 - 金属复合材料的扭矩传感器

    公开(公告)号：US4906306A

    公开(公告)日：1990-03-06

    申请号：US209366

    申请日：1988-06-21

    申请人： Masatada Araki ,  Yutaka Kuroyama ,  Yukihisa Takeuchi ,  Makoto Takagi ,  Yoshihito Kawamura ,  Toru Imura

    发明人： Masatada Araki ,  Yutaka Kuroyama ,  Yukihisa Takeuchi ,  Makoto Takagi ,  Yoshihito Kawamura ,  Toru Imura

    IPC分类号： B23K20/08 ,  C21D6/00 ,  G01L3/10

    CPC分类号： G01L3/102 ,  B23K20/085 ,  C21D6/00 ,  G01L3/103 ,  G01L3/105 ,  Y10T428/12958

    摘要： A composite article comprising a metal and an amorphous metal bonded thereto by the explosion, being free from residual stress and compression stress in the amorphous metal portion, and having excellent magnetic properties inherent to the amorphous metal can be obtained by heating a composite article produced by bonding an amorphous metal to a metal through the explosion pressure to remove the residual stress caused in the amorphous metal during the explosion bonding, and then subjecting the heat treated composite article to a plastic working so as to give a tensile stress in the amorphous metal in an amount sufficient to offset the compression stress caused in the amorphous metal due to the heat treatment.

    摘要翻译： 通过加热由非晶态金属部分产生的复合制品，通过加热由非晶态金属部分产生的复合制品，可以获得非晶态金属部分中残留的应力和压缩应力，并且具有优异的非晶态金属固有的磁性能的复合制品， 通过爆炸压力将无定形金属键合到金属上，以消除在爆炸接合期间在非晶金属中产生的残余应力，然后将热处理的复合材料制品进行塑性加工，以在非晶态金属中产生拉伸应力 足以抵消由于热处理而导致的非晶态金属中的压缩应力的量。

    Method for purifying diamond
    7.
    发明授权
    Method for purifying diamond 失效
    金刚石净化方法

    公开(公告)号：US4578260A

    公开(公告)日：1986-03-25

    申请号：US726886

    申请日：1985-04-24

    申请人： Yutaka Kuroyama ,  Masatada Araki

    发明人： Yutaka Kuroyama ,  Masatada Araki

    IPC分类号： C01B31/06

    CPC分类号： C01B31/065

    摘要： Diamond can be easily purified from a powdery mixture of diamond and graphite by heating the mixture together with ammonium nitrate and at least one metal oxide of lead monoxide, trilead tetroxide, magnesium oxide and zinc oxide, to oxidize the graphite powder, and removing the oxidized graphite.

    摘要翻译： 通过将混合物与硝酸铵和至少一种一氧化碳，四氧化二铅，氧化镁和氧化锌的金属氧化物一起加热，使金刚石和石墨的粉末混合物容易地纯化金刚石，以氧化石墨粉末，并除去氧化的 石墨。

    High-hardness sintered article and method for manufacture thereof
    9.
    发明授权
    High-hardness sintered article and method for manufacture thereof 失效
    高硬度烧结制品及其制造方法

    公开(公告)号：US4788166A

    公开(公告)日：1988-11-29

    申请号：US834805

    申请日：1986-02-28

    申请人： Masatada Araki ,  Yutaka Kuroyama

    发明人： Masatada Araki ,  Yutaka Kuroyama

    IPC分类号： C22C1/05 ,  C04B35/583 ,  C04B35/5831 ,  C22C29/00 ,  C22C29/16 ,  C04B35/58

    CPC分类号： C04B35/5831

    摘要： A high-hardness sintered article having high-pressure phase boron nitride as its matrix is manufactured by preparing a mixture consisting of 65 to 95% by volume of a high-pressure phase boron nitride formed of boron nitride of cubic phase having a continuous grain size distribution ranging fom a maximum grain size of 10 to 50 .mu.m to a minumum grain size of less than 1 .mu.m and optionally admixed with wurtzite type boron nitride, 4 to 34% by volume of carbide, nitride or carbonitride of titanim alone or in conjunction with carbide, nitride, or carbonitride of tantalum, and the balance to make up 100% by volume of aluminum and sintering the mixture at a temperature of at least 1,200.degree. C. under pressure of at least 20,000 atmospheres. A high-hardness sintered article is obtained without entailing any loss of hardness during the course of sintering by additionally incorporating in the mixture as 100% 0.1 to 5% by volume of boron and treating the resulting mixture under entirely the same conditions as described above.

    摘要翻译： 具有高压相氮化硼作为其基体的高硬度烧结制品通过制备由65至95体积％的由具有连续晶粒尺寸的立方相的氮化硼形成的高压相氮化硼组成的混合物 分布范围为10〜50μm的最大粒径至小于1μm的最小粒度，并且任选地与纤锌矿型氮化硼混合，单独使用4〜34体积％的碳化物，氮化钛或碳氮化物，或者 与钽的碳化物，氮化物或碳氮化物结合，余量为100体积％的铝，并在至少1200℃的温度下在至少20,000个大气压的压力下烧结混合物。 通过在混合物中另外加入100％的0.1〜5体积％的硼并在完全与上述相同的条件下处理所得到的混合物，可以获得高硬度的烧结制品，而不会在烧结过程中损失硬度。