Method of producing electrical conductor

Details Method of producing electrical conductor Method of producing electrical conductor

1990-04-26

1994-06-21

Andrews, Melvyn J.

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148680, 148562, C22F 108

Patent

active

RE0346411

ABSTRACT:
A method of producing an electrical conductor is described. The electrical conductor is made of an oxygen-free copper material having an oxygen content of not more than 50 ppm, wherein copper crystals constituting the copper material are giant crystals. These giant copper crystals are formed by heating the copper material in an inert atmosphere maintained at a temperature exceeding 800.degree. C., but below the melting point of copper for at least 15 minutes.

REFERENCES:
patent: 3352722 (1967-11-01), Wang et al.
patent: 4290823 (1981-09-01), Dompas
patent: 4311522 (1982-01-01), Batra et al.
Metal Manual, revised 3rd edition, Sep. 20, 1978.
"Recent Progress in Oxygen Free Copper Conductors for Audio Wire and Cable" Journal of Japan Audio Society vol. 23, No. 9, Sep. 1983.

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