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2 044 062

(13)

(51)

IPC

(21) (22)

Application

5057982/02, 1992-08-16

(22)

Actual filing date

1992-08-16

(45)

Published

1995-09-20

(72)

Inventor

Tarynin N.G.Kulikov V.V.Mjannik A.G.Senin V.T.Arslanov V.G.Pavlenko A.I.Artamonov V.I.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD FOR STEEL MAKING IN 100-t ELECTRIC ARC FURNACES Russian patent published in 1995 - IPC

Abstract RU 2044062 C1

FIELD: ferrous metallurgy. SUBSTANCE: method for steel making in 100-t electric arc furnaces includes charging of metal burden, melting and introduction of slag-forming constituents. Novelty consists in that used in form of CaO-containing material is limestone which is introduced in course of melting of the first portion of metal burden in mixture with fluorspar in the amount of 2-4 t of blend and with component ratio of (10-15):1, and the second portion of limestone of 4-6 t is added in melting of the second portion of metal burden at the rate of 0.15-0.25 t/min. In so doing, supplied to zone of introduction of slag-forming constituents is oxygen and/or gas-oxygen fuel. EFFECT: higher efficiency.

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RU 2 044 062 C1

Authors

Tarynin N.G.

Kulikov V.V.

Mjannik A.G.

Senin V.T.

Arslanov V.G.

Pavlenko A.I.

Artamonov V.I.

Dates

1995-09-20—Published

1992-08-16—Filed