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The effects of lubrication on profile and flatness control during ASR hot strip rolling

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Abstract

The influence of lubrication on profile and flatness control during asymmetry self-compensating work roll (ASR) hot strip rolling process is studied in order to meet the requirement of schedule-free rolling (SFR) campaigns for non-oriented electrical steel production with identical strip width. The effects of lubrication on rolling force, surface topography, and work roll wear are analyzed through experimental data. A work roll wear model for a wide non-oriented electrical steel production considered lubrication during the hot rolling process is built, which can accurately reflect the work roll wear during the hot rolling process with lubrication. A 3D finite element model for roll stack considering lubrication is built. The effects of shifting strategy on ASR work roll wear contour, loaded roll gap crown, and edge drop are analyzed based on the models. The optimal shifting rhythm is 1, and the optimal shifting step is 2 ~ 3 mm. By combining the ASR technology with lubrication, the life of work rolls expands from 70 to 100 ~ 150 by different shifting step, the loaded roll gap crown can be efficiently controlled by bending force and the edge drop control ability can be improved efficiently within an entire rolling campaign.

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Authors and Affiliations

  1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Yan-lin Li, Jian-guo Cao & Ning Kong

  2. Wuhan Iron & Steel (Group)Corp, Wuhan, Hubei, 430083, China

    Dun Wen, Heng-hao Ma & Yun-song Zhou

Authors
  1. Yan-lin Li
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  2. Jian-guo Cao
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  3. Ning Kong
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  4. Dun Wen
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  5. Heng-hao Ma
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  6. Yun-song Zhou
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Correspondence to Jian-guo Cao.

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Li, Yl., Cao, Jg., Kong, N. et al. The effects of lubrication on profile and flatness control during ASR hot strip rolling. Int J Adv Manuf Technol 91, 2725–2732 (2017). https://doi.org/10.1007/s00170-016-9910-8

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  • DOI: https://doi.org/10.1007/s00170-016-9910-8

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