연속주조시 강종 혼합에 관한 수치해석적 연구

Numerical Simulation of Steel Mixing during Sequential Casting of Dissimilar Grades in the Continuous Caster

  • 조명종 (RIST(포항산업과학연구원) 열유체연구팀) ;
  • 김인철 (RIST(포항산업과학연구원) 열유체연구팀) ;
  • 김상준 (RIST(포항산업과학연구원) 열유체연구팀) ;
  • 박헌 (POSCO 포항제철 1연주공장) ;
  • 이승석 (POSCO 포항제철 1연주공장)
  • 발행 : 2001.06.27

초록

In order to investigate the mixing of dissimilar grades during the arbitrary grade transition in bloom caster, a computational model has been developed. The model is fully transient and consists of two sub models, which account for mixing in the bloom tundish, mixing in the strand. The developed model was verified using concentration histories measured on 1 : 1 scale bloom tundish water model. The result of numerical model showed good agreement with the experimental results of water model. By using this numerical model, the mixing of dissimilar grades in bloom caster has been simulated. As that result, the characteristics of the steel mixing in the bloom tundish and strand was showed and the amount of the intermixed grade bloom was predicted.

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