Refractory discharge arrangement

Details Refractory discharge arrangement Refractory discharge arrangement

B - Operations, Transporting

22

D

39/113, 22/80, 3

B22D 41/54 (2006.01) B22D 41/02 (2006.01) B22D 41/50 (2006.01) F27D 1/10 (2006.01) F27D 3/14 (2006.01)

Patent

CA 2035787

23843-230 ABSTRACT A refractory discharge arrangement comprises an immer- sion discharge tube (1) and a separate outer sheathing (5) which is fastened to the discharge tube and which, during operation, is positioned in the area of the casting powder layer of a molten steel. A longer service life is achieved in that the outer sheathing (5) consists of zirconium oxide which is free from carbon and is bonded directly by burning or firing at a high temperature, and the immersion discharge tube (1) consists essen- tially of carbon-bonded magnesium oxide or also of carbon-bonded aluminium oxide or vitreous fused silica.

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