Refractory, heat-insulating slabs

Details Refractory, heat-insulating slabs Refractory, heat-insulating slabs

1983-11-08

1986-10-21

Rolla, Joseph J.

Dispensing

Molten metal dispensing

106 84, 501 95, 501119, 501133, C04B 3504

Patent

active

046180796

ABSTRACT:
A refractory, heat-insulating slab for use in an inner, expendable lining of a tundish has a facing comprising magnesium oxide, inorganic binder but substantially no organic matter and a different backing. The facing has a combined water content not exceeding 2% by weight and the backing has a permeability of at least 10 AFS units. The facing and backing are joined together during formation of the facing or the backing. In the continuous casting of steel, the slabs have the advantage that there is little or no tendency for a significant amount of hydrogen to be picked up by the steel.

REFERENCES:
patent: 3208861 (1965-09-01), Henry et al.
patent: 3233015 (1966-02-01), Davies
patent: 3257217 (1966-06-01), Van Dreser

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