Stepped Cooling Control Model Based on Optimal Algorithm

Zhu, Yan; Bu, Hen An; Sheng, Gang; Zhang, Dian Hua

doi:10.4028/www.scientific.net/amr.989-994.2165

AMR

2014

DOI: 10.4028/www.scientific.net/amr.989-994.2165

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Stepped Cooling Control Model Based on Optimal Algorithm

Yan Zhu

Hen An Bu

Gang Sheng

et al.

Abstract: A 1450mm cold rolling mill roll stepped cooling control technology has been studied. The basic principle of stepped cooling control has been analyzed. The important role of stepped cooling control in the control of thermal crown has been elaborated. In order to analyze impact of stepped cooling on the sectional shape of the strip, the roll under the influence of the cooling water temperature field has been established. The model of optimal cooling capacity in each segment has been established. The model has be… Show more

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2022

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“…Fig 10. The efficiency curves of the IRS on the strip crown Fig.11The efficiency factor of the IRS on strip crown from S1 to S5…”

mentioning

confidence: 99%

Influence of intermediate roll shifting on strip shape in a CVC-6 tandem cold mill based on a 3D multi-stand FE model

Xie

Zhang

et al. 2022

Int J Adv Manuf Technol

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Intermediate roll shifting (IRS) is widely used for improving the strip shape in the six-high tandem cold mill, but most related studies are limited to a single stand. To fill the knowledge gap, a three-dimensional (3D) multi-stand elastic–plastic finite element (FE) model was developed for a continuously variable crown (CVC)-6 tandem cold mill using data transfer, which was then validated by industrial experimental results. Based on this FE model, the effects of the IRS on the strip crown, strip flatness, loaded roll gap profile and contact normal stress between rolls at each stand were quantitatively analysed. The results show that from Stand 1 (S1) to Stand 5 (S5), the regulation ability of the IRS on the strip crown shows a decreasing trend, which depends on the strip plastic rigidity; in contrast, the regulation ability on the quadratic flatness experiences an obvious increase from S1 to Stand 4 (S4), then a drop at S5, while the IRS exerts little effect on the quartic flatness and quartic crown of the loaded roll gap. Moreover, the most uniform distribution of contact normal stress emerges at different IRSs from S1 to S5. These findings can contribute to a better understanding of the role of the IRS in controlling the strip shape during tandem cold rolling (TCR).

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“…Fig 10. The efficiency curves of the IRS on the strip crown Fig.11The efficiency factor of the IRS on strip crown from S1 to S5…”

mentioning

confidence: 99%

Influence of intermediate roll shifting on strip shape in a CVC-6 tandem cold mill based on a 3D multi-stand FE model

Xie

Zhang

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

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Stepped Cooling Control Model Based on Optimal Algorithm

Cited by 1 publication

References 6 publications

Influence of intermediate roll shifting on strip shape in a CVC-6 tandem cold mill based on a 3D multi-stand FE model

Influence of intermediate roll shifting on strip shape in a CVC-6 tandem cold mill based on a 3D multi-stand FE model

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