STOPPER ROD FOR ADJUSTMENT OF FLOW OF MOLTEN METAL FROM TUNDISH INTO MOLD DURING CONTINUOUS CASTING, DEVICE AND METHOD FOR ADJUSTMENT OF FLOW OF MOLTEN METAL FROM TUNDISH USING STOPPER ROD

摘要

A stopper rod comprises an elongate body having an inlet at an upper first end and an outlet at a lower second end. The second end of the body defining a nose for insertion into a tundish outlet. A continuous axial bore extends through the body from the inlet in the first end to the outlet in the second end. A restrictor having an inlet, an outlet and a passageway therebetween, is positioned in the axial bore such that the inlet of the restrictor is closer to the first end than the second end. A gas supply conduit is arranged to supply gas into the axial bore above the inlet of the restrictor.