Continuous Casting Mold, Continuous Casting Machine, And Continuous Casting Method

Abstract: Provided is a continuous casting mold (1) to be applied to a steel continuous casting process that employs mold flux, the continuous casting mold (1) satisfying one or more of the following: [A] the cross-sectional area of a mold cooling water channel in a mold upper portion (21) is smaller than the cross-sectional area of the mold cooling water channel in a mold lower portion (22); [B] the distance between a mold cooling water channel edge and a mold surface in the mold upper portion (21) is less than the distance between the mold cooling water channel edge and the mold surface in the mold lower portion (22); and [C] the thermal conductivity of a mold copper plate in the mold upper portion (21) is greater than the thermal conductivity of the mold copper plate in the mold lower portion (22). Accordingly, a cooling capacity near a molten steel surface, namely the upper mold portion (21), can be increased in comparison with the cooling capacity of the mold lower portion (22). Also provided is a continuous casting method that uses a continuous casting machine provided with the continuous casting mold (1), and that uses, as the mold flux, a mold flux having a crystallization rate that increases when melted and solidified.

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