Process of making steel by melting sponge iron in an electric ar

Details Process of making steel by melting sponge iron in an electric ar Process of making steel by melting sponge iron in an electric ar

1984-01-11

1984-12-25

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 12, 75 44S, C21B 106

Patent

active

044901682

ABSTRACT:
Sponge iron produced by direct reduction is melted in an electric arc furnace, in which a pool of liquid metal is maintained. To ensure that liquid carbon-containing iron for forming the pool is available in adequate quantities and that the process can be carried out with the highest possible economy, the sponge iron is reacted in an electric arc furnace on a bath of liquid carbon-containing iron (hot metal), which has been produced from sponge iron or from partly reduced ore in an electric reducing furnace, and in dependence on the electric load changes which are due to the operation of the electric arc furnace the operation of the electric reducing furnace is so controlled that a virtually constant load on the electric power supply system is maintained.

REFERENCES:
patent: 2894831 (1959-07-01), Old
patent: 3206299 (1965-09-01), Senior
patent: 3224871 (1965-12-01), Collin
patent: 3505060 (1970-04-01), Heitmann
patent: 3948641 (1976-04-01), Langhammer

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