Apparatus for pouring molten steel into a mold in continuous cas

Details Apparatus for pouring molten steel into a mold in continuous cas Apparatus for pouring molten steel into a mold in continuous cas

1988-10-24

1990-05-08

Seidel, Richard K.

Metal founding

Means to shape metallic material

Continuous or semicontinuous casting

164337, 222602, B22D 1110

Patent

active

049229940

ABSTRACT:
An apparatus for pouring molten steel into a mold in continuous casting of steel according to the present invention comprises a tundish holding molten steel; a nozzle which is set at the bottom of said tundish, the nozzle having a spherical shape and through which molten steel flows out of said tundish; a sliding plate which is set at the lower portion of said nozzle and which opens and closes said nozzle; an immersion nozzle which is set under said sliding plate and through which molten steel is poured into the mold; and a block body which has a core body therein, whose outer layer is made from refractory material and has a spherical surface large enough to cover the opening of said nozzle and whose bulk specific gravity ranges between the bulk specific gravity of slag and that of molten steel. A disc-shaped flange is coupled to the spherical surface portion.

REFERENCES:
patent: 2472456 (1949-06-01), Anicetti
patent: 3459209 (1969-08-01), Kobusch et al.
patent: 3511304 (1970-05-01), Baier et al.
patent: 3730401 (1973-05-01), Bode, Jr.
patent: 4526349 (1985-07-01), Schwer
Iron and Steelmaking, No. 1, 1981, pp. 39-42; M. Saigusa et al.: "New Method for Limiting Slag Carryover Into Steel Ladle" *FIGS. 1-4; p. 39, right-hand col.-p. 40, left-hand col.

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