High alloy steel making

Details High alloy steel making High alloy steel making

1987-01-08

1988-09-20

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 46, 75 58, C21C 700

Patent

active

047723173

ABSTRACT:
The process includes two major phases, each including a converter blowing step and a discharge step, whereby the first discharge step is also a preparatory step for the second blowing step. The steel is dephosphorized, desulfurized, and decarbonized under formation of basic slag which is retained in the converter during the first discharge. Lime, limeflux and possibly clay is added prior to the second blowing together with, preferably, silicon for deoxidation. After the second discharge, additional alloy components may be added.

REFERENCES:
patent: 3791819 (1974-02-01), Loutzenhiser
patent: 3985549 (1976-10-01), Rheinlander

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