Method of producing iron-, nickle-, or cobalt-base alloy with lo

Details Method of producing iron-, nickle-, or cobalt-base alloy with lo Method of producing iron-, nickle-, or cobalt-base alloy with lo

1982-06-02

1984-11-27

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, 75 82, 75129, 75130R, C21C 702

Patent

active

044849460

ABSTRACT:
The disclosed method of producing an iron-, nickel-, or cobalt-base alloy with low contents of oxygen, sulphur, and nitrogen comprises steps of melting the alloy in a crucible lined with a basic refractory containing at least 40% of calcium oxide; and adding at least one additive and not more than 5% by weight of at least one flux, based on said alloy, the additive being selected from the group consisting of aluminum, aluminum alloys, silicon, silicon alloys, titanium, zirconium, niobium, boron, and rare earth elements, the flux being selected from the group consisting of oxides, silicates, carbonates, and halides of alkali and alkaline earth metals, and aluminum oxide, so that the resultant molten alloy contains 0.005 to 7.0% of aluminum, 0.005 to 7.0% of silicon, and 0.0005 to 0.005% of calcium.

REFERENCES:
patent: 3189956 (1965-06-01), Longden
patent: 3375105 (1968-03-01), Lynch
patent: 4217134 (1980-08-01), Russell

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