Title:
METHOD FOR MANUFACTURING ELECTRODE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/212731
Kind Code:
A1
Abstract:
A method for manufacturing an electrode material, comprising molding and sintering a powder mixture of a solid solution powder of Cr and a heat-resistant element including Cr and a heat-resistant element (Mo, W, Ta, Nb, V, Zr, or the like) in a ratio in which Cr > the heat-resistant element in terms of weight ratio, Cu powder, and a low-melting metal powder (Bi, Sn, Se, Pb, or the like). The low-melting metal powder in a ratio of 0.30 wt% to 0.50 wt% is added to a powder mixture of Cu powder and the solid solution powder of Cr and the heat-resistant element, and the powder mixture in which the low-melting metal powder is added is sintered at a temperature of 1010°C to 1035°C. A powder having a median diameter of 5 µm to 20 µm is used as the low-melting metal powder.
Inventors:
HAYASHI SHOTA (JP)
ISHIKAWA KEITA (JP)
YAMAMURA KENTA (JP)
HASEGAWA KOSUKE (JP)
FUKUDA HIDEAKI (JP)
SANO AKIRA (JP)
ISHIKAWA KEITA (JP)
YAMAMURA KENTA (JP)
HASEGAWA KOSUKE (JP)
FUKUDA HIDEAKI (JP)
SANO AKIRA (JP)
Application Number:
PCT/JP2017/010426
Publication Date:
December 14, 2017
Filing Date:
March 15, 2017
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
C22C1/04; B22F1/00; B22F1/052; B22F3/10; B22F5/00; B22F9/08; C22C9/00; C22C27/06; C22C30/02; H01H33/662; H01H33/664
Foreign References:
| JP2016023335A | 2016-02-08 | |||
| JPS54147481A | 1979-11-17 | |||
| JP2015138681A | 2015-07-30 | |||
| JPH0973846A | 1997-03-18 | |||
| JPH04334832A | 1992-11-20 | |||
| JP2002180150A | 2002-06-26 | |||
| JPH04334832A | 1992-11-20 | |||
| JP2015138682A | 2015-07-30 | |||
| JPH05198230A | 1993-08-06 | |||
| JP2015093765A | 2015-05-18 | |||
| JP2015126086A | 2015-07-06 | |||
| JP2015161482A | 2015-09-07 |
Other References:
RIEDER, F. U.A.: "The Influence of Composition and Cr Particle Size of Cu/Cr Contacts on Chopping Current, Contact Resistance, and Breakdown Voltage in Vacuum Interrupters", IEEE TRANSACTIONS ON COMPONENTS, HYBRIDS, AND MANUFACTURING TECHNOLOGY, vol. 12, 1989, pages 273 - 283, XP000904661, DOI: doi:10.1109/33.31434
See also references of EP 3470538A4
See also references of EP 3470538A4
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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