F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
307/16
F27B 3/10 (2006.01) C21C 5/52 (2006.01) C21C 7/00 (2006.01) F27D 17/00 (2006.01) H05B 7/12 (2006.01)
Patent
CA 1273044
Abstract of the Disclosure The gap between an insertion hole formed in a covering of a ladle and an electrode inserted through the insertion hole is sealed by sealing means. The sealing means has a cap seal longitudinally and slidably fitted over the electrode. A base seal is hermetically disposed between the cap seal and the covering in such a manner that a gap is provided between the electrode and the base seal. The base seal has a gas injection nozzle intended to discharge a gas toward the electrode and another gas injection nozzle intended to discharge the gas downwardly. The use of the base and cap seals enables securing the sealing functions thereof despite any movement of the electrode, thus preventing the pickup of [N] as well as the reoxidation of molten steel. When a gas seal is effected by the formation of a flow of gas rotating around the electrode about the axis thereof, the sealing performance can be more enhanced. Further, when the base seal is cooled by causing cooling water to be circulated therethrough, its durability can also be enhanced.
492825
Hamada Yoneichi
Hasegawa Teruyuki
Komatsu Yoshimi
Kondo Tsuneo
Kuwano Seigo
Nippon Kokan Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
Arc heating type extra-furnace refining apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arc heating type extra-furnace refining apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc heating type extra-furnace refining apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1263532