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AssigneeMeidensha Corporation
InventorsKeita Ishikawa, Kenta Yamamura, Kosuke Hasegawa, Shota Hayashi, Takaaki Furuhata
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It is an electrode material that is used as an electrode contact of a vacuum interrupter and that contains one or more parts by weight of a heat-resistant element and one part by weight of Cr, the remainder being Cu and an unavoidable impurity. A part of Cr powder and the heat-resistant element powder are mixed together, and this mixed powder is sintered such that a peak corresponding to Cr element disappears in X-ray diffraction measurement. A solid solution powder obtained by pulverizing a sintered body of the heat-resistant element and Cr obtained by the sintering is mixed with the remaining Cr powder, and this mixed powder is shaped and then sintered. A sintered body obtained by this sintering is infiltrated with Cu.
A method for manufacturing an electrode material containing 1) one or more parts by weight of a heat-resistant element that is at least one element of Mo, W, Ta, Nb, V or Zr, and 2) one part by weight of a total Cr that is total of a first Cr and a second Cr, a remainder of the electrode material being Cu and impurity, the method comprising the steps of:
A method for manufacturing an electrode material containing 1) one or more parts by weight of a heat-resistant element that is at least one element of Mo, W, Ta, Nb, V or Zr, and 2) one part by weight of a total Cr that is a total of a first Cr and a second Cr, a remainder of the electrode material being Cu and an impurity, the method comprising the steps of:
Dependencies are inferred from the claim text.