Submerged Entry Nozzles (SEN)

In submerged casting, submerged entry nozzles are located between the tundish and the mould. The optimum design for a given submerged entry nozzle is influenced by the flow conditions, steel throughout, mould design and sequence time. Their primary functions are:

• To prevent reoxidation of the molten steel stream
• To prevent air aspiration and steel splashing when the molten stream strikes the liquid bath surface
• To control the fluid dynamics in the mould through optimization of the port geometrie

The demands of consumers force steelmakers to improve quality and increase operational efficiency. Consequently, the field of application for submerged entry nozzles is constantly extended and improved.
This trend drives our research and development activities. We offer a complete range of material options, designs and product enhancements in order to meet the challenges of modern continuous casting operations.

1) B.D.: bulk density;   A.P.: apparent porosity;   C.C.S.: cold crushing strength;  C.M.O.R.: cold modulus of rupture 
2) Data shown are average results of standard tests unless otherwise noted. Results may vary subject to variations in manufacturing, testing, and installation procedures in the field.