Continuous casting mold, continuous casting machine, and continuous casting method

A continuous casting mold for a continuous casting process of steel using a mold flux,

• a side of the continuous casting mold that comes into contact with molten steel configured including a water-cooling copper mold plate,
• a cooling-water channel being disposed in the copper mold plate so that cooling water flows in a vertical direction of the mold,
• the cooling-water channel being connected to an upper water supply and drainage channel at an upper end of the mold and to a lower water supply and drainage channel at a lower end of the mold, and
• one or more of [A], [B], and [C] below being satisfied,
• [A] a cross-sectional area of the cooling-water channel is smaller in an upper part of the mold than in a lower part of the mold,
• [B] a distance between an end of the cooling-water channel and a mold surface is shorter in the upper part of the mold than in the lower part of the mold, where the end of the cooling-water channel refers to an end of the cooling-water channel on a mold surface side, and
• [C] a thermal conductivity of the copper mold plate is higher in the upper part of the mold than in the lower part of the mold.