Abstract: A build-up mold for continuous casting has a cooling plate having a plurality of separate and unconnected slit grooves forming cooling channels by a supporting panel attached to the cooling plate using tightening members, wherein the width of the slit grooves next to the tightening members is wider than the width of other slit grooves while depth of all slit grooves are substantially the same.

Abstract: The invention provides a build-up mold for continuous casting that can be produced at low costs by simplifying cumbersome positioning operations when milling or cutting slit grooves in a copper plate that becomes a cooling plate, is able of making uniform the cooling efficiency over the entirety of the cooling plate by adjusting pressure loss and flow amount of cooling water flowing into the respective slit grooves, and is able to prevent break-out and defects of molded pieces in continuous casting of molten metal without generating strains in the cooling plate, wherein the yield of molded pieces can be improved.