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    VACUUM INTERRUPTER
    1.
    发明申请
    VACUUM INTERRUPTER 有权

    公开(公告)号：US20220108854A1

    公开(公告)日：2022-04-07

    申请号：US17428434

    申请日：2019-02-06

    Applicant: MEIDENSHA CORPORATION ,  SECHERON SA

    Inventor： Kenta YAMAMURA ,  Takaaki FURUHATA ,  Hideki KOMATSU ,  Kosuke HASEGAWA ,  Tetsuya KANNO ,  Bjorn FISCHER ,  Tarek LAMARA ,  Claudio TRICARICO

    IPC: H01H33/662 ,  H01H33/664

    Abstract: A vacuum interrupter (1) is equipped with a vacuum container (2) and a fixed electrode (3) and a movable electrode (4), which are provided in the vacuum container (2). The vacuum container (2) is constructed by hermetically joining a fixed-side end plate (6) to one end portion of an insulating tube (5) and by hermetically joining a movable-side end plate (7) to the other end portion of the insulating tube (5). The insulating tube (5) is equipped at its end portion with a projection portion (5a) that projects in an axial direction of the insulating tube (5) along an outer periphery of the insulating tube (5). The insulating tube (5) is equipped at its end portion with an end plate joining portion (5b) that projects from a base end portion of the projection portion (5a) in an inner peripheral direction of the insulating tube (5). The end plate joining portion (5b) is equipped on its surface with a metallized layer (8) to which the fixed-side end plate (6) (or the movable-side end plate (7)) is joined by brazing. The metallized layer (8) is equipped with a joining portion (8a) that extends in a radial direction of the insulating tube (5), and an extension portion (8b) that extends in an axial direction of the insulating tube (5) from an end portion of the joining portion (8a) on an inner peripheral side of the insulating tube (5).

    METHOD FOR MANUFACTURING ELECTRODE MATERIAL
    2.
    发明申请
    METHOD FOR MANUFACTURING ELECTRODE MATERIAL 审中-公开

    公开(公告)号：US20190299285A1

    公开(公告)日：2019-10-03

    申请号：US16307538

    申请日：2017-03-15

    Applicant: MEIDENSHA CORPORATION

    Inventor： Shota HAYASHI ,  Keita ISHIKAWA ,  Kenta YAMAMURA ,  Kosuke HASEGAWA ,  Hideaki FUKUDA ,  Akira SANO

    IPC: B22F3/10 ,  B22F1/00 ,  B22F3/24 ,  C22C27/06 ,  H01H33/66 ,  H01H1/025 ,  H01H1/02

    Abstract: There is disclosed a method for manufacturing an electrode by pressing and sintering a mixed powder of a solid solution powder of Cr and a heat-resistant element, which contains Cr and the heat-resistant element in a ratio such that Cr is greater than the heat-resistant element by weight, a Cu powder, and a low melting metal powder (Bi, Sn, Se, Pb, etc.). The low melting metal powder of 0.30 weight % to 0.50 weight % is added to a mixed powder of a solid solution powder of Cr and the heat-resistant element and the Cu powder, and then a mixed powder prepared by adding the low melting metal powder is sintered at a temperature of from 1010° C. to 1035° C. As the low melting metal powder, there is used a powder having a median size of from 5 μm to 20 μm.

    ELECTRODE MATERIAL
    4.
    发明申请
    ELECTRODE MATERIAL 有权
    电极材料

    公开(公告)号：US20170066055A1

    公开(公告)日：2017-03-09

    申请号：US15122743

    申请日：2015-02-17

    Applicant: MEIDENSHA CORPORATION

    Inventor： Kaoru KITAKIZAKI ,  Keita ISHIKAWA ,  Shota HAYASHI ,  Nobutaka SUZUKI ,  Kosuke HASEGAWA

    IPC: B22F3/16 ,  H01H33/664 ,  C22C27/04 ,  H01H1/025 ,  B22F1/00 ,  B22F3/26

    CPC classification number: B22F3/16 ,  B22F1/0007 ,  B22F3/26 ,  B22F2301/10 ,  B22F2301/20 ,  B22F2304/10 ,  B22F2998/10 ,  C22C1/045 ,  C22C9/00 ,  C22C27/02 ,  C22C27/04 ,  C22C27/06 ,  C22C30/02 ,  H01H1/025 ,  H01H33/664 ,  B22F1/0003 ,  B22F3/10 ,  B22F9/04 ,  B22F3/02

    Abstract: An electrode material wherein Cr-containing particles are finely miniaturized and uniformly dispersed while a Cu portion, which is highly conductive component, is also finely miniaturized and uniformly dispersed. The electrode material is prepared, for example, by: a mixing step (S1) for mixing a Cr powder and a heat resistant element powder; a provisional sintering step (S2) for provisionally sintering the mixed powder to obtain a solid solution of Cr and the heat resistant element; a pulverizing step (S3) for pulverizing the solid solution of Cr and the heat resistant element to obtain a solid solution powder of Cr and the heat resistant element; a molding step (S4) for molding the solid solution powder; a main sintering step (S5) for performing main sintering of the obtained molded body to obtain a sintered body (skeleton) of Cr and the heat resistant element; and a Cu infiltration step (S6) for infiltrating the sintered body of Cr and the heat resistant element with Cu.A method for producing an electrode material, involving: (i) a step of preparing a powder of a solid solution of Cr and a heat resistant material selected from the group consisting of Mo, W, Ta, Nb, V and Zr, wherein either a peak corresponding to Cr element or a peak corresponding to the heat resistant element, which are observed by X ray diffraction measurement made on the powder of the solid solution, disappears; (ii) a step of molding the powder of the solid solution to obtain a molded body and then sintering the molded body to produce a sintered body; and (iii) a Cu infiltration step of infiltrating the sintered body with Cu.

    Abstract translation: 一种电极材料的制造方法，其特征在于：（i）制备Cr的固溶体的粉末和选自Mo，W，Ta，Nb，V和Zr的耐热材料的步骤，其中任一种 消失了通过在固溶体的粉末上进行的X射线衍射测量而对应于Cr元素的峰或对应于耐热元件的峰; （ii）将固溶体的粉末成形以获得成型体，然后烧结成型体以制造烧结体的步骤; 和（iii）用Cu浸渍烧结体的Cu浸渗步骤。

    ALLOY
    5.
    发明申请
    ALLOY 有权
    合金

    公开(公告)号：US20160369373A1

    公开(公告)日：2016-12-22

    申请号：US15123398

    申请日：2015-02-17

    Applicant: MEIDENSHA CORPORATION

    Inventor： Kaoru KITAKIZAKI ,  Keita ISHIKAWA ,  Shota HAYASHI ,  Nobutaka SUZUKI ,  Kosuke HASEGAWA

    IPC: C22C1/04 ,  H01H33/664 ,  C22C9/00

    CPC classification number: C22C1/0425 ,  B22F3/26 ,  B22F2998/10 ,  C22C1/045 ,  C22C9/00 ,  C22C27/02 ,  C22C27/04 ,  C22C27/06 ,  C22C30/02 ,  H01H33/664 ,  B22F1/0003 ,  B22F1/0085 ,  B22F2009/041 ,  B22F3/02 ,  B22F3/10 ,  B22F3/15

    Abstract: A composite metal where a phase of particles of solid solution is uniformly dispersed in a Cu phase, the solid solution containing a solid solution of a heat resistant element selected from Mo, W, Ta, Nb, V and Zr and Cr. The composite metal is provided to contain: 20-70% of Cu; 1.5-64% of Cr; and 6-76% of a heat resistant element by weight relative to the composite metal, wherein a remainder is comprised of inevitable impurities. In the composite metal, the particles of the solid solution, contained in the composite metal, are provided to have an average particle diameter of not larger than 20 μm and to uniformly disperse in the Cu phase with an index of the dispersion state of not higher than 1.0.

    Abstract translation: 一种复合金属，其中固相颗粒的相分散在Cu相中，所述固溶体含有选自Mo，W，Ta，Nb，V和Zr和Cr的耐热元素的固溶体。 复合金属被提供以包含：20-70％的Cu; 1.5-64％的Cr; 和相对于复合金属的重量的6-76％的耐热元素，其中余量由不可避免的杂质组成。 在复合金属中，复合金属中含有的固溶体的粒子的平均粒径为20μm以下，分散状态的指标不均匀地分散在Cu相中 比1.0。

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