Arc furnace steelmaking

Details Arc furnace steelmaking Arc furnace steelmaking

C - Chemistry, Metallurgy

21

C

53/47

C21C 5/52 (2006.01)

Patent

CA 1067292

ABSTRACT OF THE DISCLOSURE: A method of steelmaking in an electric arc furnace comprising the step of continuously charging a blend of particulate iron-bearing material to the furnace, the blend comprising a first particulate of low carbon iron-bearing material having a carbon content of less than about 0.8% and a second particulate of high carbon iron-bearing material having a carbon content greater than the first particulate and less than about 4%, the relative proportions of the first and second particulates comprising the blend and the rate of continuously charging the blend to the furnace being controlled to a) maximize the utilization of both the electrical energy supplied to the furnace and the chemical energy generated within the furnace by the charged materials; and b) secure the desired carbon content of the steel on tapping said furnace.

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