Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1986-02-18
1987-10-20
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 58, 266216, C21C 700
Patent
active
047012153
ABSTRACT:
For introducing gases, wires and powders to metal melts, a multi-ducted refractory body (11) is installed in the wall (14) of a vessel (15) for the melt. The body has passage closing elements (24, 34, 35) 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 (36.91) (for gas or fluidized powder). Upon moving gas pipe (36) towards the melt, it dislodges closing element (24) whereby gas from the pipe can enter the melt via capillary bores (25). Similarly, by moving pipe (91), closing element: when it reaches the closing element (34) the wire can itself dislodge this element to gain access to the melt. A method of introducing substances to liquid related to uses of this apparatus is disclosed, as well as metallurgical processes involving the method.
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Bates Kenneth W.
Griffiths William A.
Injectall Limited
Rosenberg Peter D.
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