Journal of Northeastern University Natural Science ›› 2015, Vol. 36 ›› Issue (8): 1106-1109.DOI: 10.12068/j.issn.1005-3026.2015.08.010

• Materials & Metallurgy • Previous Articles     Next Articles

Optimization of Adaptive Threading Strategy in Hot Strip Rolling

JI Ya-feng, PENG Wen, MA Geng-sheng, ZHANG Dian-hua   

  1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China.
  • Received:2014-06-24 Revised:2014-06-24 Online:2015-08-15 Published:2015-08-28
  • Contact: PENG Wen
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Abstract: In the hot strip rolling process, the factors which affect the rolling force prediction need to be determined for the adaptive threading strategy. These factors were analyzed by calculating the influence coefficients, then linear equations were developed. The equations were solved by the least square method ,with the prediction deviations obtained. The adaptive threading schedule was verified by the test stand, which can ensure the schedule validity. The optimized strategy was successfully applied to a tandem hot mill. The application results show that the control precision of thickness is enhanced to a high level.

Key words: hot strip rolling, adaptive threading, influence coefficients method, least square method, schedule optimization

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