C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
53/47
C21B 13/14 (2006.01) C21B 13/12 (2006.01) C21C 5/52 (2006.01)
Patent
CA 1216754
ABSTRACT OF THE DISCLOSURE: Process of making steel by melting sponge iron in an electric arc furnace. The 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 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 control- led that a virtually constant load on the electric power supply system is maintained.
444999
Arlt Detmar
Formanek Lothar
Fritzsche Klaus-Dietrich
Hirsch Martin
Koenig Heribert
Mannesmann Aktiengesellschaft
Metallgesellschaft Aktiengesellschaft
Robic Robic & Associes/associates
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