B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/82
B22D 41/00 (2006.01)
Patent
CA 1244216
ABSTRACT OF THE DISCLOSURE A lance for bubbling gas into molten metal in a ladle having a protective refractory lining on the bottom and side walls thereon. The lance consists of an elongated refractory body member of a shape matching a vertical groove in the refractory lining in the side wall of the ladle The lance has at least one tubular member positioned axially therein and extending outwardly of one end thereof and communi- cating with at least one opening in said elongated body member inwardly of the opposite end thereof, said opening facing the interior of the ladle and a connection for introducing gas into said tubular member. -2-
501200
Frayne & Company Robert
Insul Company Inc.
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