Copper alloy and method of manufacturing the same

Details Copper alloy and method of manufacturing the same Copper alloy and method of manufacturing the same

1986-10-08

1989-04-18

Ruthedge, L. Dewayne

Alloys or metallic compositions

Copper base

Tin containing

420473, 420476, 148433, C22C 902

Patent

active

048225606

ABSTRACT:
A copper alloy is disclosed which comprises 0.01 to 1.0 wt. % of Cr, 0.01 to 8 wt. % of Sn, 0.001 to 5 wt. % of at least one of 0.001 to 5 wt. % of Zn, 0.001 to 0.5 wt. % of Mn and 0.001 to 0.2 wt. % of Mg and the remainder of Cu, the content of O.sub.2 therein being not more than 0.005 wt. %. A method of manufacturing therefor is described wherein, after the hot processing or the heat treatment at 800.degree. to 950.degree. C., the alloy is cooled by passage through a region of 800.degree. to 400.degree. C. within 20 minutes, then following cold processing, heating treatment is carried out for at least 1 minute at 400.degree. to 650.degree. C. The alloy with the composition aforementioned is used as an alloy material for electric or electronic instruments.

REFERENCES:
patent: 4430298 (1984-02-01), Miyafuji et al.
patent: 4439247 (1984-03-01), Arita et al.
patent: 4605532 (1986-08-01), Knorr et al.

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