Method of continuous casting using sealed tundish and improved tundish seal
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United States of America Patent
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Jul 8, 1997
Grant Date -
N/A
app pub date -
Jan 5, 1996
filing date -
Jan 5, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tundish used in a continuous steel casting operation is sealed to permit effective purging of the tundish to eliminate free oxygen and nitrogen by providing a plurality of generally rectangular planar sealing boards of refractory fiber material having sufficient density to be self-supporting and placing the boards in side-by-side relation on the open top of the tundish prior to installation of the refractory cover whereby the sealing boards form a gasket between the cover and tundish top wall, and form a continuous panel underlying the cover. The refractory fiber material may be penetrated by the ladle shroud tube and/or the tundish stopper rod(s).
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