조질압연에서의 연신율제어를 위한 set-up 모델 개발

Development of Set-up Model for Elongation Control in Steel Skin Pass Mill

  • 이원호 (POSCO 기술연구소 계측제어연구그룹)
  • 발행 : 2001.04.01

초록

The mathematical set-up model was developed to reduce the mechanical property deviation in annealed and slightly rolled steel strip. The mechanical peculiarities of skin pass rolling process, such as high friction value and non-circular contact arc, low reduction and non-negligible entry and exit elastic zones as well as central restricted deformation zone are all taken into account. The deformation of work rolls is calculated with the influence function method and arbitrary contact arc shape is permitted. The strip deformation is modeled by slab method and the entry and exit elastic deformation zones are included. The strip restricted deformation zone near the neutral point is also considered. It was revealed that the new model has better accuracy than present regression model by statistical analysis with actual mill rolling data.

키워드

참고문헌

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