B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/57, 22/80
B22D 43/00 (2006.01)
Patent
CA 1315520
ABSTRACT OF THE DISCLOSURE 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, whose opening made in said tundish has 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 nozzle and whose bulk specific gravity ranges between bulk specific gravity of slag and that of molten steel.
582303
Maeda Ryuichi
Ogura Yasutsugu
Nkk Corporation
Ridout & Maybee Llp
LandOfFree
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