Continuous casting nozzle for casting molten steel
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United States of America Patent
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Jun 15, 1999
Issued Date -
N/A
app pub date -
Nov 28, 1997
filing date -
Dec 5, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is related to a continuous casting nozzle for casting of aluminum killed steel without clogging of the bore of the nozzle. The surface layer of the bore of the continuous casting nozzle contacting with the molten steel is formed of a refractory comprising graphite from 10 to 35 wt %, an aggregate of 10 to 60 wt % selected from alumina matter, zirconia matter, zircon matter, or alumina-silica matter and roseki containing the pyrophyllite (Al.sub.2 O.sub.3 .multidot.4SiO.sub.2 .multidot.H.sub.2 O) as the main component as the remaining part of the above mentioned materials.
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