Continuous casting slag entrapment preventing plug rod

摘要

The present invention relates to a continuous casting rolling prevention slag stopper, which includes a stopper body and a stopper head. Here, a rolling prevention slag ring is installed at the stopper body. The rolling prevention slag ring is surrounded by an upper curved surface and a lower curved surface. The intersecting line of a cross section corresponding to the upper curved surface and a stopper central line is a downwardly concave curve. The intersecting line is an exponential function curve. A curve equation of the intersecting line is y=2e0.5x. The value range of x is -2.3 x 3.6. Therefore, the continuous casting rolling prevention slag stopper of a new structure according to the present invention weakens or offsets the generation of joined turbulence of tundish steel, and decreases the risk of a continuous casting slag, by a unique shape of a segment with a rolling prevention function. Resultantly, the quality and yield of a steel billet can be increased, thereby significantly lessening fabrication costs of a steel mill.