Flow deviation preventing immersed nozzle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 13, 2004
Grant Date -
N/A
app pub date -
Mar 11, 2002
filing date -
Aug 27, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An immersion nozzle for steel continuous casting has two delivery ports opposing each other and has one or more bore reduced portions above the delivery ports in a bore. A bore reduced portion closest to the delivery ports has an elliptical horizontal section, with an elongate direction of the ellipse nearly parallel with a direction of the delivery ports. The bore elliptic reduced portion may include another bore reduced portion second closest to the delivery port, wherein a lower end surface of the bore elliptic reduced portion closest to the delivery port can be 0.3H-2H of a delivery port height H of from an upper end of the delivery port, the spacing to the upper bore elliptic reduced portion being 0.3D-2D of a diameter D of the bore, and moreover a length of each bore reduced portion being 0.5D-5D.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully