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|1. (WO2018055799) CONTINUOUS STEEL CASTING METHOD|
|Applicants:||JFE STEEL CORPORATION
|Title:||CONTINUOUS STEEL CASTING METHOD|
This method relates to the technique of providing, on the inner wall surface of a mold copper plate for continuous casting, differing-thermal-conductivity metal-filled areas which are filled with a metal in which, with respect to the mold copper plate, the ratio of the thermal conductivity difference is at least 20%. By setting the interval in the width direction and the interval in the casting direction of the differing-thermal-conductivity metal-filled areas to less than or equal to a value defined by a prescribed numerical formula, it is possible to prevent surface cracking due to uneven cooling of the solidified shell in the initial solidification period during continuous casting, and to suppress center segregation occurring in the thickness center of a cast piece.