Sheet billet fast-replacing submerged nozzle

• Main Authors: JAMES.OWEN STONE, SUN LINLUAN
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2013
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The utility model provides a sheet billet fast-replacing submerged nozzle. The sheet billet fast-replacing submerged nozzle comprises a nozzle body and a water outlet formed in the bottom of the nozzle body. The sheet billet fast-replacing submerged nozzle is characterized in that the nozzle body comprises a straight line section arranged at the upper end and a horn section connected to the straight line section. An upper caliber and a lower caliber of an inner cavity of the straight line section are equal, the barrel diameter of the upper end of the horn section is smaller than that of the lower end of the horn section, and the top and the bottom of the horn section are in smooth transition. The water outlet is in a flat shape. Compared with the prior art, the sheet billet fast-replacing submerged nozzle has the advantages that the sheet billet fast-replacing submerged nozzle is suitable for continuous casting of a sheet billet with a narrow crystallizer, molten steel can flow more stably inside the nozzle a