Lower Nozzles

Lower Nozzles are essential refractory flow-control components positioned below the slide gate plate assembly in steel ladle systems. They serve as the final discharge passage for molten steel, directing the flow from the slide gate mechanism to the collector nozzle, shroud, or downstream casting equipment. Their performance is critical for maintaining stable steel flow, casting safety, and operational efficiency throughout the casting sequence.

Exposed to continuous molten steel flow, high temperatures, thermal cycling, and severe erosion conditions, Lower Nozzles are manufactured from advanced refractory materials such as Alumina-Carbon (Al₂O₃-C), Alumina-Zirconia-Carbon (AZC), and other specialized refractory compositions. These materials provide excellent resistance to steel erosion, thermal shock, oxidation, and slag attack while ensuring dimensional stability and long service life.

• Reliable molten steel discharge during casting operations
• Excellent thermal shock and temperature cycling resistance
• High resistance to steel erosion and slag corrosion
• Supports stable casting performance and improved productivity