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19 条记录 (耗时 0.009 秒)

    Surge-absorberless vacuum circuit interrupter
    1.
    发明公开
    Surge-absorberless vacuum circuit interrupter 失效
    真空开关无浪涌吸收器。

    公开(公告)号：EP0090579A2

    公开(公告)日：1983-10-05

    申请号：EP83301587.8

    申请日：1983-03-22

    申请人： Hitachi, Ltd.

    发明人： Watanabe, Ryuji ,  Ando, Hisashi ,  Kuniya, Keiichi ,  Kurosawa, Yukio

    IPC分类号： H01H33/66 ,  H01H1/02

    CPC分类号： H01H33/664 ,  H01H1/0203 ,  H01H1/0233

    摘要： A small-sized, light weighted vacuum circuit interrupter comprises a vacuum container (1) confining a vacuum atmosphere of a pressure less than 10- 4 mmHg and a pair of electrodes consisting of a fixed electrode (4) and a movable electrode (5) for making and breaking an electric circuit including either a transformer (22) of a rated surge voltage strength of less than 45 kV or a motor of a rated surge voltage strength of less than 25kV. At least one of the electrodes (4,5) has a contact made of a porous body of a refractory conductive material and an impregnate selected from the group consisting of silver telluride, silver selenide and mixtures thereof impregnated in the porous body in an amount sufficient to give the interrupter a chopping current of not more than 1 A and an arc extinguishing capability of 1 MHz of not more than 27A/µs when measured in a circuit of 6 kV. The interrupter can be connected to the load without a surge absorber for protecting the breaker from a surge voltage generated at the time of interrupting the circuit.

    Zirconium alloy having superior corrosion resistance
    4.
    发明公开
    Zirconium alloy having superior corrosion resistance 失效
    锆合金具有良好的耐腐蚀性。

    公开(公告)号：EP0098996A1

    公开(公告)日：1984-01-25

    申请号：EP83106001.7

    申请日：1983-06-20

    申请人： HITACHI, LTD.

    发明人： Inagaki, Masahisa ,  Jinbo, Ryutaro ,  Kuniya, Keiichi ,  Masaoka, Isao ,  Maki, Hideo

    IPC分类号： C22F1/18 ,  C22C16/00 ,  G21C3/06

    CPC分类号： C22F1/186

    摘要： A zirconium alloy having superior corrosion resistance, containing Sn of a small amount not less than the amount of Sn existing in the solid-solution of the zirconium alloy at a room temperature, and at least one element chosen between Fe and Cr, each in a small amount not less than the amount of each of Fe and Cr existing in the solid-solution of the zirconium alloy at room temperature, the total amount of Fe and Cr existing in the solid-solution of the zirconium alloy being not less than 0.26%. the zirconium alloy being annealed after a solution heat treatment at a temperature at which both the a phase and ε phase thereof are included in the zirconium alloy. Preferably, the alloy consists of 1-2% of Sn, at least one element selected from the group of 0,05 - 0,3% Fe, 0,05 - 0,2% Cr, 0 - 0,1% Ni, balance Zr.

    An electrode for a semiconductor device and method of making such an electrode
    5.
    发明公开
    An electrode for a semiconductor device and method of making such an electrode 失效
    用于半导体器件以及制造这种电极的方法的电极。

    公开(公告)号：EP0012019A1

    公开(公告)日：1980-06-11

    申请号：EP79302729.3

    申请日：1979-11-29

    申请人： Hitachi, Ltd.

    发明人： Tsuruoka, Masao ,  Morita, Keiichi ,  Kuniya, Keiichi

    IPC分类号： H01L23/48 ,  H01L21/48 ,  H01L23/04 ,  H01L25/04

    CPC分类号： H01L21/4871 ,  H01L23/051 ,  H01L23/4928 ,  H01L25/072 ,  H01L2224/83101 ,  H01L2924/1301 ,  H01L2924/00

    摘要： A supporting electrode (16,18) is mounted on at lear,t one surface of a semiconductor substrate (11). The sides of the substrate (11) and the electrode are covered by epoxy resin (43). In order to avoid problems arising from the different thermal expansion coefficients of the various materials, the electrode is formed of a copper-carbon fiber composition metal in which carbon fibers are embedded in a spiral and lie parallel to the major surface of the substrate, so that the electrode exhibits anisotropic thermal expansion properties. Its coefficient of expansion parallel to the major surface of the substrate is lower than its coefficient in the direction perpendicular to this surface, since the expansion coefficient of the substrate (e.g. silicon) is lower than that of the resin (43),

    摘要翻译： 辅助电极（16,18）被安装在半导体衬底（11）的至少一个表面上。 基板（11）和所述电极的侧面由环氧树脂（43）覆盖。 为了避免从各种材料的热膨胀系数不同而引起的问题，该电极被形成，其中碳纤维的铜 - 碳纤维组合物的金属的嵌入在平行于基板的主表面上的螺旋形，并且位于，所以 DASS模电极表现出各向异性的热膨胀性质。 其与基板的主表面平行膨胀系数比其在方向系数较低的垂直于该表面，由于在基板（例如硅）的膨胀系数大于所述树脂（43）的下部。

    A method for producing a ceramic article
    7.
    发明公开
    A method for producing a ceramic article 失效
    韦尔法罕zur Herstellung eines keramischen Gegenstandes。

    公开(公告)号：EP0140682A1

    公开(公告)日：1985-05-08

    申请号：EP84307379.2

    申请日：1984-10-26

    申请人： HITACHI, LTD.

    发明人： Sakai, Junji ,  Kuniya, Keiichi ,  Sobue, Masahisa ,  Nakazawa, Tetsuo ,  Sasaki, Toshimi

    IPC分类号： B28B1/26

    CPC分类号： B28B1/261 ,  B28B1/26 ,  C04B35/565

    摘要： © A ceramic article having a complicated configuration and non-uniform in wall thickness such as a turbocharger rotor for automobiles, a rotor for gas turbine engines and the like is produced by casting a ceramic-containing slurry 1 into a mold 2,3. Problems caused by non-uniform absorption of the liquid in the slurry are avoided by effecting orientated solidification of the slurry in the mold. Part 2 of the mold is absorptive, while part 3 is non-absorptive.

    摘要翻译： 通过将含陶瓷的浆料1浇铸到模具2,3中，制造具有复杂构造和壁厚不均匀的陶瓷制品，例如用于汽车的涡轮增压器转子，用于燃气涡轮发动机的转子等。 通过在模具中实现浆料的取向固化来避免浆料中液体的不均匀吸收。 模具的第2部分是吸收性的，而第3部分是不吸收的。

    Surge-absorberless vacuum circuit interrupter
    8.
    发明公开
    Surge-absorberless vacuum circuit interrupter 失效
    超声波吸收式真空电路中断器

    公开(公告)号：EP0090579A3

    公开(公告)日：1984-07-11

    申请号：EP83301587

    申请日：1983-03-22

    申请人： Hitachi, Ltd.

    发明人： Watanabe, Ryuji ,  Ando, Hisashi ,  Kuniya, Keiichi ,  Kurosawa, Yukio

    IPC分类号： H01H33/66

    CPC分类号： H01H33/664 ,  H01H1/0203 ,  H01H1/0233

    摘要： A small-sized, light weighted vacuum circuit interrupter comprises a vacuum container (1) confining a vacuum atmosphere of a pressure less than 10- 4 mmHg and a pair of electrodes consisting of a fixed electrode (4) and a movable electrode (5) for making and breaking an electric circuit including either a transformer (22) of a rated surge voltage strength of less than 45 kV or a motor of a rated surge voltage strength of less than 25kV. At least one of the electrodes (4,5) has a contact made of a porous body of a refractory conductive material and an impregnate selected from the group consisting of silver telluride, silver selenide and mixtures thereof impregnated in the porous body in an amount sufficient to give the interrupter a chopping current of not more than 1 A and an arc extinguishing capability of 1 MHz of not more than 27A/µs when measured in a circuit of 6 kV. The interrupter can be connected to the load without a surge absorber for protecting the breaker from a surge voltage generated at the time of interrupting the circuit.