Method for reducing or widening mold width during continuous casting

摘要

A variable width continuous casting method in which the wide side walls are stationary and the narrow side walls (1) are movable. The center (P) of the rotation radius of the narrow side walls (1) is set below and above the mold on the basis of the casting speed and the moving speed of the narrow side walls (1). The method provides lessening of air gaps and shell deformation resistance and of the size of the width-varied part of the slab, and an increase in yield and a stable operation.