Nozzle structure
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United States of America Patent
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Oct 13, 2020
Grant Date -
Jan 31, 2019
app pub date -
Nov 9, 2016
filing date -
Jan 25, 2016
priority date (Note) -
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Abstract
A nozzle structure for discharging molten steel with improved sealing performance. The nozzle structure comprises: a molten steel discharge path having an inner bore; and one or more joints through which the molten steel discharge path is divided at one or more positions in a orthogonal direction with respect to an upward-downward direction of discharge of molten steel, and which join the molten steel discharge path. An inner bore sleeve is formed of a refractory material, and provided on an inner bore surface of the nozzle structure to extend in the upward-downward direction across at least one of the joints.
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