Metal treatment – Compositions – Heat treating
Patent
1982-11-22
1984-03-27
Skiff, Peter K.
Metal treatment
Compositions
Heat treating
148 115C, 148 127C, C22F 108
Patent
active
044392478
ABSTRACT:
A copper alloy which is high in strength and electroconductivity is manufactured by casting, without chill casting, a copper alloy mass substantially consisting of copper and containing 0.2 to 1.5% by weight of chromium and 0.01 to 0.5% by weight of tin, hot working the cast copper alloy mass, then cooling, not slowly, the hot worked alloy mass without being subjected to any solid solution treatment, further cold working the cooled alloy mass, and thereafter subjecting the cold worked alloy mass to an aging treatment.
REFERENCES:
patent: 1723867 (1929-08-01), Korsunsky
patent: 4047980 (1977-09-01), Watson et al.
Arita Kishio
Ishida Mitsushi
Izumimori Hajime
Miyoshi Akio
Takahashi Toshio
Nippon Telecommunication Engineering Company Limited
Nippon Telegraph and Telephone Public Corporation
Skiff Peter K.
Sumitomo Metal Mining Company Limited
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