Refractory shroud for continuous casting

Details Refractory shroud for continuous casting Refractory shroud for continuous casting

1984-01-23

1986-02-04

Rolla, Joseph J.

Dispensing

Molten metal dispensing

With subjacent flow guide

222591, 164437, B22D 3700

Patent

active

045680078

ABSTRACT:
The present invention provides a refractory tube through which a stream of molten metal is passed during continuous casting which includes an inner refractory member of relatively low thermal expansion and thermal conductivity characteristics and an outer refractory member of high erosion resistance. The cooperation of the inner and outer refractory members results in an end product with a prolonged useful casting life and which does not require preheating prior to use. In a preferred embodiment, the inner refractory member is formed of fused silica and the outer refractory member is formed of alumina graphite and/or zirconia graphite.

REFERENCES:
patent: 3801083 (1974-04-01), Mantey et al.
patent: 4210264 (1980-07-01), Kondo
Okamoto, Kazuma et al., "Development of Alumina-Graphite Immersion Nozzle for Continuous Casting", Iron and Steel Engineer, p. 47, Dec. 1982.

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