Refractory composition for the prevention of alumina clogging

Details Refractory composition for the prevention of alumina clogging Refractory composition for the prevention of alumina clogging

B - Operations, Transporting

22

D

B22D 41/08 (2006.01) B22D 41/54 (2006.01)

Patent

CA 2295083

A molten steel pouring nozzle (10) having a bore (22) therethrough, at least a portion (26) of the nozzle (10) forming the bore (22) being comprised of a refractory having calcium zirconate: from 20 to 75 weight %, graphite: from 5 to 30 weight %, and calcium silicide: from 0.5 to 15 weight %.

Cette invention se rapporte à une busette de coulée (10) pour acier en fusion, traversée par un passage (22), au moins une partie (26) de la busette (10) formant le passage (22) étant constituée par un réfractaire renfermant 20 à 75 % en poids de zirconate de calcium, 5 à 30 % en poids de graphite et 0,5 à 15 % en poids de siliciure de calcium.

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