Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1988-03-04
1993-10-26
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
266216, 266225, 266280, C21C 700
Patent
active
RE0344184
ABSTRACT:
For the introducing gases, wires and powders to metal melts, a multi-ducted refractory body is installed in the wall of a vessel for the melt. The body has passage closing elements preventing melt entering the passages (A, B, C). Two passages (A and C) serve respectively for introducing gas, and fluidized powders, to the melt; each has a movable pipe (for gas or fluidized powder). Upon moving the gas pipe towards the melt, it dislodges closing element whereby gas from the pipe can enter the melt via capillar bores. Wire is fed along passage (B) to the melt: when it reaches the closing element the wire can itself dislodge this element to gain access to the melt. A method of introducing substances to liquid related to use of this apparatus is disclosed, as well as metallurgical process involving the method.
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Bates Kenneth W.
Griffiths William A.
Injectall Limited
Rosenberg Peter D.
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