Method of continuous casting of steel
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United States of America Patent
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Issued Date -
Aug 19, 2004
app pub date -
Jan 21, 2004
filing date -
Nov 29, 2001
priority date (Note) -
Abandoned
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Abstract
A subject for the invention is to provide a method of continuous steel casting in which although an 'immersion nozzle constituted of a refractory material comprising alumina as the main component' is used for continuous steel casting, this nozzle suffers little fusion loss and no alumina deposition thereon and a clean steel casting can be stably obtained. The method of continuous steel casting of the invention uses a combination of a mold powder having a fluorine content lower than 3% by weight and a viscosity at 1,300.degree. C. of from 4 P to 10,000 P and an immersion nozzle constituted of a refractory material comprising alumina as the main component (e.g., an alumina refractory and/or an alumina-carbon refractory).
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