| 摘要 |
PURPOSE:To secure generation of Joule heat in molten steel and to prevent trouble of breakout and the other, by assembling high electric resistant substance penetrating a copper plate in cross sectional face of the mold copper plate in the range of setting electromagnetic coil. CONSTITUTION:The mold has constitution assembling coils 20 having the same axis as the axial center of the mold at outside of the mold copper plate 12A in the range of 20-100mm at right and left sides of the drawing direction of a cast billet 16 as centering the center line B-B of the feed nozzle 10 and the high electric resistant body 22 penetrating the copper plate 12A in the cross sectional face of the mold copper plate 12A in the range of setting the coil 20. By this method, the induction current conducting in the copper plate 12A is restrained and induction current is increased in the molten steel 4 and the effective generation of Joule heat caused by the induction current in the molten steel 4 can be obtd. Further, the separating point of the cast billet in the prescribed range from the stable continuous casting operation without any trouble of breakout and the other can be executed. |
