Method of protecting copper melt from oxidation with carbon sand

Details Method of protecting copper melt from oxidation with carbon sand Method of protecting copper melt from oxidation with carbon sand

1998-07-30

2000-02-15

Willis, Prince

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75305, 75709, C22B 1500

Patent

active

060247797

ABSTRACT:
A method of protecting copper and copper alloys from surface oxidation on an upper melted surface while melting copper and/or copper alloys, such as bronze, using a granular carbon sand layer thereover, such as the carbon sands disclosed in this assignee's U.S. Pat. Nos. 5,215,143 and/or 5,094,289.

REFERENCES:
patent: 2830342 (1958-04-01), Meyers et al.
patent: 2830913 (1958-04-01), Meyers et al.
patent: 5094289 (1992-03-01), Gentry
patent: 5149498 (1992-09-01), Nilmen et al.
patent: 5193604 (1993-03-01), Brugger
patent: 5215143 (1993-06-01), Gentry
patent: 5366535 (1994-11-01), Heaslip et al.
patent: 5688313 (1997-11-01), Landis
patent: 5769933 (1998-06-01), Landis

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