Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent
1993-10-28
1995-02-21
Wyszomierski, George
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
148682, 148685, C22F 108
Patent
active
053912438
ABSTRACT:
A wire for electric railways comprises a copper alloy which consists essentially, by weight percent, of 0.1 to 1.0% Cr, 0.01 to 0.3% Zr, and 10 ppm or less O, and if required, further contains at least one element selected from the group consisting of 0.01 to 0.1% Si and 0.001 to 0.05% Mg, with the balance being Cu and inevitable impurities. The wire is manufactured by hot working a copper alloy billet having the above composition, immediately quenching the hot worked billet to prepare an element wire, cold working the element wire at least once, and subjecting the cold worked element wire to aging treatment.
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Taubenblat, P. W., et al., "A New Copper Alloy with High Strength and Conductivity", Metals Engineering Quaterly, Nov. 1972, pp. 41-44.
Patent Abstracts of Japan, vol. 15, No. 206 (C-835) May 27, 1991 & JP-A-03 056 632 (Furukawa).
Patent Abstracts of Japan, vol. 15, No. 206 (C-835) May 27, 1991 & JP-A-03 056 633 (Furukawa).
Aoki Sumihisa
Asao Haruhiko
Goto Motoo
Ishibashi Syunji
Iwamura Takuro
Mitsubishi Materials Corporation
Railway Technical Research Institute
Wyszomierski George
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