Casting nozzle
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United States of America Patent
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-
Oct 25, 1988
Grant Date -
N/A
app pub date -
Aug 19, 1986
filing date -
Aug 29, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A casting nozzle designed such that the sticking of nonmetallic impurities to the outlet of the nozzle is prevented by blowing out a gas. The casting nozzle comprises a nozzle proper, an annular hollow chamber for gas blowing formed in the axial direction of the nozzle proper, and annularly arranged reticulate small holes for gas blowing communicating with the annular hollow chamber, the small holes opening at the outlet of the nozzle. The reticulate small holes are formed when organic filaments wound round a portion of the inside wall of the nozzle proper carbonize, volatilize, or shrink upon heating.
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