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Research on Single-Side Long Edge of Hot Rolled Strip Caused by Asymmetrical Stiffness of Mill Stand

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Author(s): Dian-Yao Gong | Jian-Zhong Xu | Dian-Hua Zhang | Zhong-Feng Guo | Cui-Ying Yang

Journal: Engineering
ISSN 1947-3931

Volume: 03;
Issue: 09;
Start page: 900;
Date: 2011;
Original page

Keywords: Hot Rolled Strip Shape | Asymmetric Deformation | Effect Coefficient Method | 4-High Mill

ABSTRACT
To analyze and solve the problem of single-side long edge of hot rolled strip in certain domestic factory, the asymmetrical deformation of rolls and strip in asymmetrical stiffness mill stand based on slit beam model, the strip profile and rolling force distribution at the exit of asymmetric stiffness stand mill were calculated using influence function method. Considering the character of in-site equipment and technology, a scheme of adjusting load distribution in finishing mill was made and the experiment was applied. Comparison of strip profile between new load distribution and the old one shows that the method can solve single-side long edge problem well.
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