Nozzle plate for a sliding nozzle apparatus
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United States of America Patent
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Nov 6, 2007
Grant Date -
Oct 20, 2005
app pub date -
Jun 15, 2005
filing date -
Dec 16, 2003
priority date (Note) -
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Abstract
It is an object to form a plate for a sliding nozzle apparatus in a shape for decreasing extreme erosion and extend durability of the plate to enable cost reduction, the sliding-nozzle plate having dimensions (unit length is mm) as indicated in following equations: a dimension from the center position X of the nozzle hole to a closest end of the plate for the sliding nozzle in the longitudinal direction is a sum of a dimension 'b' from the center position X to an ideal circle with the position X as the center and a dimension 'd' from the ideal circle to the closest end in the longitudinal direction, a dimension from the center position X and to a center position Y is a dimension S of the stroke, and a dimension from the center position Y to a closest end of the plate for the sliding nozzle in the longitudinal direction is a dimension 'c', where b: a+30.about.40, c: 0.75a+20.about.30, d:0.5a, S:2a+m, and m:15.about.35.
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