Modeling and Analysis of Interstand Tension Control in 6-high Tandem Cold Rolling Mill

The interstand tension control is one of the most important ways to meet tight tolerances for strip product quality during tandem cold rolling process. Using coordinate analysis and parabolic approximation for the mass flow balance principle, the strip velocities eliminating the use of forward slips...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2014-09, Vol.21 (9), p.830-836
Main Authors: ZHANG, Xin, CHEN, Shu-zong, ZHANG, Hao-yuz, ZHANG, Xi-wen, ZHANG, Dian-hua, SUN, Jie
Format: Article
Language:English
Subjects:
Applied and Technical Physics
bilinear transformation
Engineering
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Physical Chemistry
Processes
tandem cold rolling mill
tension control
transfer function matrix model
产品质量
冷连轧机
双线性变换
建模
张力控制
矩阵模型
计算结果
连轧过程
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Summary:The interstand tension control is one of the most important ways to meet tight tolerances for strip product quality during tandem cold rolling process. Using coordinate analysis and parabolic approximation for the mass flow balance principle, the strip velocities eliminating the use of forward slips and backward slips were calculated. In order to reduce the effect of roll eccentricity on the tension measurement, a filter based on bilinear transformation was designed. Applying a first-order Taylor series approximation, the transfer function matrix model of interstand tension stress was derived. The actual measurements on-site and the final calculation results showed that the established model had high calculation accuracy and was beneficial for interstand tension control of tandem cold rolling process.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(14)60149-7