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Mathematical Modelling of Online Warping Height of Cold-Rolled Thin Strip Steel
The warping deformation is a common shape defect for thin strip steel. The warping form is shown as type-C for online strip with tension, whereas it is generally type-L for offline steel sheet without tension. A mathematical model between type-C warping height for online strip and type-L warping height for offline steel sheet was established and validated by field experiments. The predicted offline warping height was agreed well with the measured results, and the average relative error was about 5.4%. There is a linear relationship between online and offline warping heights. The influence factors on online warping height were also discussed. At the same offline warping value of steel sheet, the online warping value increases with the increase of warping correction factor and the decrease of the sampling sheet length. The online warping height is also affected by width and Poisson’s ratio of strip. This model could be used to predict the online warping height of steel strip based on the offline warping height of steel sheet. Also the offline warping height can be evaluated according to the online warping state. It lays a primary theoretical foundation for the warping relationship between online strip and offline steel sheet.
Mathematical Modelling of Online Warping Height of Cold-Rolled Thin Strip Steel
The warping deformation is a common shape defect for thin strip steel. The warping form is shown as type-C for online strip with tension, whereas it is generally type-L for offline steel sheet without tension. A mathematical model between type-C warping height for online strip and type-L warping height for offline steel sheet was established and validated by field experiments. The predicted offline warping height was agreed well with the measured results, and the average relative error was about 5.4%. There is a linear relationship between online and offline warping heights. The influence factors on online warping height were also discussed. At the same offline warping value of steel sheet, the online warping value increases with the increase of warping correction factor and the decrease of the sampling sheet length. The online warping height is also affected by width and Poisson’s ratio of strip. This model could be used to predict the online warping height of steel strip based on the offline warping height of steel sheet. Also the offline warping height can be evaluated according to the online warping state. It lays a primary theoretical foundation for the warping relationship between online strip and offline steel sheet.
Mathematical Modelling of Online Warping Height of Cold-Rolled Thin Strip Steel
Int J Steel Struct
Li, Yanglong (author) / Wen, Jie (author) / Lin, Haihai (author) / Yu, Meng (author) / Wang, Fengqin (author)
International Journal of Steel Structures ; 22 ; 913-919
2022-08-01
7 pages
Article (Journal)
Electronic Resource
English
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