公开(公告)号：US20160141126A1

公开(公告)日：2016-05-19

申请号：US14900240

申请日：2014-09-05

Applicant: Hitachi, Ltd.

Inventor： Shigeru KIKUCHI ,  Kunihiko TOMIYASU ,  Kenji TSUCHIYA ,  Takashi SATO ,  Ayumu MORITA

IPC: H01H33/664 ,  C22C27/04 ,  C22C30/02 ,  B22F3/26 ,  B22F1/00 ,  B22F5/12 ,  B22F3/02 ,  H01H33/666 ,  C22C9/00

CPC classification number: H01H33/6643 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/26 ,  B22F5/12 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2301/10 ,  B22F2301/20 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/04 ,  C22C1/0425 ,  C22C1/045 ,  C22C9/00 ,  C22C27/04 ,  C22C30/02 ,  H01H33/664 ,  H01H33/666 ,  H01H2201/03 ,  H01H2205/002 ,  B22F2201/01

Abstract: In an electrical contact in which aggregation phases including Cu are dispersed in a matrix phase including Mo, Cr, and Cu, a maximum grain size of the aggregation phases falls in a range of 4 to 20 μm and, when the total Cu content in the electrical contact is denoted by Wt, the Cu content in the matrix phase is expressed by C×Wt, where C ranges from 0.54 to 0.81. A process for producing an electrical contact including Mo, Cr, and Cu includes a step of compacting mixed Mo and Cr powders, thus forming a powder-compression compact and a step of making the powder-compression compact infiltrated with molten Cu.

Abstract translation: 在其中包含Cu的聚集相分散在包括Mo，Cr和Cu的基质相中的电接触中，聚集相的最大晶粒尺寸落在4至20μm的范围内，并且当Cu 电接触由Wt表示，基质相中的Cu含量由C×Wt表示，C为0.54〜0.81。 用于制造包括Mo，Cr和Cu的电接触的方法包括压实混合的Mo和Cr粉末的步骤，从而形成粉末压缩压块，以及使熔融的Cu浸渍的粉末压缩压块的步骤。

公开(公告)号：US20140367362A1

公开(公告)日：2014-12-18

申请号：US14257231

申请日：2014-04-21

Applicant: Hitachi, Ltd.

Inventor： Kunihiko TOMIYASU ,  Hiroyuki SHIRAI ,  Takashi SATO ,  Masato KOBAYASHI

IPC: H01H1/06

CPC classification number: H01H1/06 ,  H01H33/6642

Abstract: An electrode for a vacuum circuit breaker comprises a cylindrical conducting body, a contact electrode as a combination electrode, and a plurality of slits provided on a surface area of the cylindrical conducting body, the slits being inclined with respect to an axial direction of the cylindrical conducting body, wherein an angle between the slits and the axial direction of the cylindrical conducting body is smaller as the slit becomes farther away from the contact electrode.

Abstract translation: 一种用于真空断路器的电极包括圆柱形导电体，作为组合电极的接触电极和设置在圆柱导电体的表面区域上的多个狭缝，狭缝相对于圆柱形导体的轴向倾斜 导电体，其中狭缝与圆柱形导电体的轴向方向之间的角度随着狭缝变得远离接触电极而变小。