The main tasks:
- Transfer molten steel from Tundish to mold nozzle (inner nozzle)
- Protection of the melt against oxidation and temperature drop
- Pouring molten steel into the mold (submerged entry nozzle and submerged entry shroud)
In the manufacture of these parts, alumina-carbon, zirconia-carbon, and magnesia-carbon compounds are used in different areas of the nozzles to prolong casting sequences that meet different customer needs such as clogging reduction, corrosion resistance, long life and accidents reduction.
Types of Nozzles :
SEN / SES preheating is an important parameter that determines the success rate of casting. In the absence of good preheating, the probability of SEN failure increases. Preheating to 1100 degrees Celsius for up to 2 hours is necessary.
Half nozzles :
Semi-nozzles have excellent thermal shock resistance properties and complex anti-clogging properties that prolong the sequence. One of the special features of half nozzles is their replaceability.