Cast copper alloys

Details Cast copper alloys Cast copper alloys

1981-12-21

1983-08-02

Skiff, Peter K.

Metal treatment

Stock

Copper base

C22C 902

Patent

active

043964443

ABSTRACT:
The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordance with the method of the invention, ingots are direct chill cast in a mold from liquid metal wherein the melt temperature entering the mold is 100.degree. to 350.degree. C. in excess of the liquidus temperature.

REFERENCES:
patent: 1881257 (1932-10-01), Bassett, Jr.
patent: 1956251 (1932-10-01), Price
patent: 2062448 (1936-12-01), Deitz, Jr. et al.
patent: 2066512 (1937-06-01), Archer
patent: 2257437 (1941-09-01), Weiser
patent: 3317994 (1967-05-01), Cofer et al.
patent: 3923555 (1975-12-01), Shapiro et al.
patent: 3923558 (1975-12-01), Shapiro et al.
patent: 4067750 (1978-01-01), Mravic et al.
patent: 4148633 (1979-04-01), Parikh
Jackson, "A Preliminary Assessment of the Value of Minor Alloy Additions in Counteracting the Harmful Effect of Impurities on the Hot Workability of Some Copper Alloys", Journal of the Institute of Metals, vol. 98, 1970, pp. 193-198.

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