Molten steel pouring nozzle

Details Molten steel pouring nozzle Molten steel pouring nozzle

B - Operations, Transporting

22

D

39/113, 22/80, 3

B22D 41/54 (2006.01) B22D 41/02 (2006.01) C04B 35/48 (2006.01) C04B 35/482 (2006.01) F27D 1/10 (2006.01) F27D 3/14 (2006.01)

Patent

CA 2031378

A molten steel pouring nozzle having, along the axis thereof, a bore through which molten steel flows. At least part of an inner portion of the molten steel pouring nozzle, which inner portion forms the bore, is formed of a refractory consisting essentially of: zirconia clinker comprising calcium zirconate : from 40 to 89 wt.%, where, a content of calcium oxide in the zirconia clinker being within a range of from 8 to 35 weight parts relative to 100 weight parts of the zirconia clinker; graphite : from 10 to 35 wt.%; and calcium silicate : from 1 to 25 wt.%, where, a content of calcium oxide in the calcium silicate being within a range of from 40 to 54 weight parts relative to 100 weight parts of the calcium silicate.

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