Immersion nozzle for continuous casting of steel

Details Immersion nozzle for continuous casting of steel Immersion nozzle for continuous casting of steel

1988-05-26

1990-02-06

Seidel, Richard K.

Farriery

Calks

Removable

164437, 222603, B22D 1110

Patent

active

048982261

ABSTRACT:
An immersion nozzle for continuous casting of molten steel comprises: an immersion nozzle body having a bore for introducing molten steel supplied from a tundish into a continuous casting mold; two exit ports located symmetrically about the vertical center axis of the immersion nozzle body at a lower portion of the immersion nozzle body for introducing the molten steel into the continuous casting mold; gas blow-in inlets in an inwall of the immersion nozzle body, the center axis line of the blow-in inlets crossing, at right angle, a vertical plane passing through a line connecting the respective centers of the exit ports; and gas blow conduits, each being connected respectively to one of the gas blow-in inlets. The gas blow-in inlets have a height almost equal to a vertical length across the exit ports, the top of the gas blow-in inlets being from 0 to 100 mm above the upper end of the exit ports.

REFERENCES:
patent: 4210264 (1980-07-01), Kondo
patent: 4588112 (1986-05-01), Kondo

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