Analysis Of Tundish Upper Nozzle

The traditional tundish upper nozzle and submerged nozzles have the disadvantage of short service life .Nowdays refractory factorties developed long service life nozzles based on the increasing requirements of clients.According to structure and function, the Metering tundishnozzle is divided into manually quick change nozzle and automatic quick change nozzle.  The appearance of the quick-change upper nozzle has greatly improved the overall life of the tundish in the situation of  low life of submerged nozzle.