Steelmaking by the electroslag process using prereduced iron or

Details Steelmaking by the electroslag process using prereduced iron or Steelmaking by the electroslag process using prereduced iron or

1976-01-08

1976-12-14

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 10C, 164 52, 164252, C22B 400, B22D 2702

Patent

active

039973328

ABSTRACT:
Structurally sound steel ingots are produced by the conventional electroslag process using prereduced iron ore pellets containing as much as 2.8% oxygen pressed into a bar shape as a consumable electrode. A carbon source, such as silicon carbide or titanium carbide, is dispersed in the flux to prevent oxygen transfer from the flux to the ingot thus preventing blowhole porosity caused by the oxygen and allowing production of a structurally sound ingot. Alternatively, ferroalloys can be mixed with the iron ore pellets before pressing. This not only deoxidizes the melt, but also permits the production of specific alloy steel compositions.

REFERENCES:
patent: 3469968 (1969-09-01), Snow

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