발간논문

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Vol.41, No.11, 797 ~ 805, 2003
Title
Improvement of Centerline Segregation in Continuous Cast Slabs by Thermal Soft Reduction
정영진 Jeong Yeong Jin , 김지준 Kim Ji Jun , 김선구 Kim Seon Gu , 강충길 Kang Chung Gil
Abstract
Centerline macrosegregation is one of the most significant problems in continuous casting on stainless steel slabs. Numerical model have been developed in order to decrease centerline macrosegregation during continuous casting of STS 420J2 stainless steel slab. Extra cooling zone and extra cooling water quantity are determined by iterative coupled analysis of heat transfer and segregation. Segregation ratio is decreased by the intensive cooling at the extra cooling zone above the solid fraction of the slab center 0.7, so called thermal soft reduction (TSR). The experimental results show good agreements with numerical results.
Key Words
Thermal Soft Reduction, Centerline macrosegregation, Solidification, Stainless 420J2
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