Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Technology of Dimensional Control for Different Thickness Strip in Hot Strip Finishing Mills

열간 마무리압연에서 이종두께 강판의 치수제어기술

  • Lee, Sang Ho (Technical Research Lab., POSCO) ;
  • Park, Hong Bae (School of Electronics Engineering, Kyungpook National University) ;
  • Park, Cheol Jae (School of Mechanical and Automotive Engineering, Daegu University)
  • 이상호 (포스코 기술연구원) ;
  • 박홍배 (경북대학교 전자공학부) ;
  • 박철재 (대구대학교 기계자동차공학부)
  • Received : 2015.05.20
  • Accepted : 2015.06.23
  • Published : 2015.08.01
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Abstract

In this paper, we suggest a dimensional controller to produce a different thickness strip without adding production facilities at the same steel. We describe the model for the non-linear thickness and speed setup, and drive a variation of the speed and thickness with Talyor expansion. The control algorithm is composed of 8 steps and the transient condition is added in order to maintain a mass flow between stands. A simulator is developed in order to verify the algorithm, and includes a non-linear rolling model, the tension model, AGC model, the disturbance model, and so on. From the simulation results by disturbances, we show that the thickness, tension and looper angle are converged to the set condition when we change the rolling conditions.

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References

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