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Development of High-Speed Width-Changing Pattern in Continuous Caster

연속주조기의 몰드 폭 변경 패턴 개발

  • 강기판 (포스코 제강연구그룹) ;
  • 신건 (포스코 제강연구그룹) ;
  • 강충길 (부산대학교 기계공학과)
  • Received : 2009.11.16
  • Accepted : 2010.05.07
  • Published : 2010.07.01

Abstract

Four patterns for width adjustment were studied with an aim to increase the width-adjustment speed in continuous casting. The main goals are to minimize the actuating force of a WAM actuator, to develop a deformation analysis model of a solidified shell in the mold, and to induce the main limit factor for the speedup of width adjustment. On the basis of the width-adjustment experiment, the notable features of four patterns types were considered, and we compared the corresponding actuating forces. For comparing the driving forces of the patterns, during the experiment, the same casting speed was maintained for each pattern. To optimize the parameter of the deformation analysis model of the solidified shell, the experiment results were applied to them. To speed up width adjustment and to reduce the driving force, we controlled the pattern parameters. The most effective pattern was the fast-mode pattern, and the taper was the main parameter that helped reduce the driving forces during the motion of the actuator.

Keywords

Continuous Caster;Mold;Width Change;Solidified Shell;Hydraulic cylinder;Driving Force

References

  1. Setsuo Kittaka, Kunio Watanabe, Toyohiko Kanki,Yasuaki Miura, July 2002, “Nippon Steel High SpeedVariable Width Mold “NS-VWM” for Slab Caster,”Nippon Steel Technical Report , No. 86