Journal of Northeastern University ›› 2007, Vol. 28 ›› Issue (11): 1579-1582.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Causes and control of head warping during plate rolling

Tian, Yong (1); Wang, Guo-Dong (1); Zhao, Zhong (1); Wang, Zhao-Dong (1)   

  1. (1) State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-11-15 Published:2013-06-24
  • Contact: Tian, Y.
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Abstract: Head warping is very common during plate rolling. Analyzing the plate rolling process, the problem of how the temperature difference between the top and bottom surface of a plate workpiece and the diameter ratio of upper roll to lower roll after the head warping of workpiece is investigated. A model is developed revealing the relationship between the curvature of head warping, the diameter ratio of upper roll to lower roll and temperature difference between top and bottom surfaces of workpiece. According to rolling parameters, the model can be used to predict the warping curvature, thus providing theoretically reference for proper roll matching. In addition, a measuring method is proposed for head warping curvature by CCD camera.

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