Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1990-02-05
1991-04-02
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75528, 75548, 75552, 75582, 75584, C21B 304, C21B 7072
Patent
active
050044958
ABSTRACT:
A method and apparatus for the forced production of exceptionally clean steel wherein a metallurgical vessel is insulated and sealed to maintain a neutral environment into which steel is tapped and cleaned by use of gas injection and impurity precipitation and removal.
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