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11 条记录 (耗时 0.015 秒)

    Method for producing a sintered compact of boron nitride with high density form
    1.
    发明授权
    Method for producing a sintered compact of boron nitride with high density form 失效
    高密度氮化硼烧结体的制造方法

    公开(公告)号：US4132554A

    公开(公告)日：1979-01-02

    申请号：US836723

    申请日：1977-09-26

    申请人： Shinroku Saito ,  Akira Sawaoka ,  Masatada Araki

    发明人： Shinroku Saito ,  Akira Sawaoka ,  Masatada Araki

    IPC分类号： C04B35/5831 ,  C04B35/58

    CPC分类号： C04B35/5831

    摘要： A sintered compact of boron nitride with high density form having high oxidation resistance, water resistance, compressive strength and hardness can be obtained by sintering wurtzite-structured boron nitride together with a boride of titanium, zirconium or hafnium, or with mixtures thereof under a condition of high temperature and high pressure.

    摘要翻译： 将具有高抗氧化性，耐水性，抗压强度和硬度的高密度形式的氮化硼烧结体可以通过在一种条件下将纤锌矿结构的氮化硼与钛，锆或铪的硼化物或其混合物一起烧结而获得 高温高压。

    High-hardness sintered article and method for manufacture thereof
    4.
    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。

    Method for purifying diamond
    5.
    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。

    Amorphous metal-metal composite article, a method for producing the same, and a torque sensor using the same
    8.
    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。

    Drill bit
    10.
    发明授权
    Drill bit 失效
    钻头

    公开(公告)号：US4671710A

    公开(公告)日：1987-06-09

    申请号：US546461

    申请日：1983-10-28

    申请人： Masatada Araki

    发明人： Masatada Araki

    IPC分类号： B23B51/02 ,  B23B51/08

    CPC分类号： B23B51/02 ,  B23B2226/125 ,  B23B2226/31 ,  B23B2240/08 ,  B23B2251/18 ,  B23B2251/46 ,  B23B2251/50 ,  Y10T408/81 ,  Y10T408/899 ,  Y10T408/9097

    摘要： A drill bit the point of which has two or more outer cutting edges and is formed with a V-shaped notch. The V-shaped notch has its center lying on the axis of rotation of the drill bit and opens in the direction of feed of the tool. The V-shaped notch defines inner cutting edges terminating in respective outer cutting edges.

    摘要翻译： 钻头的点具有两个或更多个外切割刃，并且形成有V形凹口。 V形凹口的中心位于钻头的旋转轴线上，并沿着工具的进给方向开口。 V形凹口限定内切割边缘终止于相应的外切割边缘。