Nippon Steel Type Tundish Plasma Heater 'NS-Plasma I' for Continuous Caster

摘要

In continuous casting, the fluctuation of the molten steel temperature gives adverse effects on the cast strand quality by forming non-metallic inclusions or causing segregation, and on stable operation by causing nozzle clogging or break-out. One of the techniques to solve such problems in tundish plasma heating system. Nippon steel developed the compact type tundish plasma heating system "NS-Plasma I" based on total technologies raised for a long time. In this paper, the features and effects of this system are outlined.