| 摘要 |
PURPOSE:To prevent cracking in the corner part of a continuous casting billet with an electromagnetically stirred mold of an assembly type consisting of copper plates for continuous casting by improving the cooling power in the mold corner parts. CONSTITUTION:The surface of a mold for continuous casting which is in contact with a molten steel is constituted of copper plates 1, 1' into a rectangular shape and nonmagnetic stainless steel plates 2, 2' provided with channels 6, 6' for cooling water are welded to the outside thereof in the stage of producing the mold. Backup plates 3, 3' likewise formed of nonmagnetic stainless steel plates are bolted 4 to the outside thereof. Auxiliary water passages 7, 7' formed by expanding the bottom of the channels 6, 6' are provided near the corner parts of the electromagnetically stirred mold for continuous casting constituted in the above- mentioned way. The cooling power of the molten steel in the mold corner parts is increased by such auxiliary water passages and the cracking in the corner parts of the continuous casting billet owing to insufficient or nonuniform cooling is prevented. |
