Title:
ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING ELECTRODE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/026509
Kind Code:
A1
Abstract:
The present invention is an electrode material used as an electrode contact for a vacuum interrupter, the electrode material containing heat-resistant elements at a weight ratio of 1 or more with respect to Cr 1, the remainder being Cu and unavoidable impurities. In the present invention, a portion of a Cr powder and a heat-resistant element powder are mixed, and the mixed powder is sintered so that a peak corresponding to elemental Cr disappears in X-ray diffraction measurement. The remaining Cr powder and a solid solution powder obtained by pulverizing the sintered compact of the heat-resistant element and Cr obtained by sintering are mixed, and the mixed powder is molded and then sintered. The sintered compact obtained by sintering is infiltrated with Cu.
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Inventors:
ISHIKAWA KEITA (JP)
YAMAMURA KENTA (JP)
HASEGAWA KOSUKE (JP)
HAYASHI SHOTA (JP)
FURUHATA TAKAAKI (JP)
YAMAMURA KENTA (JP)
HASEGAWA KOSUKE (JP)
HAYASHI SHOTA (JP)
FURUHATA TAKAAKI (JP)
Application Number:
PCT/JP2016/073567
Publication Date:
February 16, 2017
Filing Date:
August 10, 2016
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
C22C1/04; B22F3/26; C22C5/04; C22C9/00; C22C9/10; C22C14/00; C22C16/00; C22C25/00; C22C27/02; C22C27/04; C22C27/06; C22C30/02; H01H33/662; H01H33/664
Foreign References:
| JPH04334832A | 1992-11-20 | |||
| JP2003226904A | 2003-08-15 | |||
| JP2002180150A | 2002-06-26 |
Other References:
See also references of EP 3333274A4
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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