Crown feedback control strategy in hot tandem rolling

LIU Tian-wu; HE An-rui; YANG Quan; WU Zhong-liang; WU Jian-fei

doi:10.13374/j.issn1001-053x.2010.05.013

Volume 32 Issue 5

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2010 > 32(5): 667-672

LIU Tian-wu, HE An-rui, YANG Quan, WU Zhong-liang, WU Jian-fei. Crown feedback control strategy in hot tandem rolling[J]. Chinese Journal of Engineering, 2010, 32(5): 667-672. doi: 10.13374/j.issn1001-053x.2010.05.013

Citation:

LIU Tian-wu, HE An-rui, YANG Quan, WU Zhong-liang, WU Jian-fei. Crown feedback control strategy in hot tandem rolling[J]. Chinese Journal of Engineering, 2010, 32(5): 667-672. doi: 10.13374/j.issn1001-053x.2010.05.013

Citation:

PDF( 392 KB)

Crown feedback control strategy in hot tandem rolling

doi: 10.13374/j.issn1001-053x.2010.05.013

1. National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China;
2. Hot Strip Plant of Jigang Group Co. Ltd., Jinan 250101, China

Received Date: 2009-07-06

Abstract

Abstract

It is still a problem to choose a crown feedback control strategy. In combination with Jigang 1700 ASP control project, a method of calculating the adjustable range of crown at each stand exit was studied in theory. By using the method the choice of a crown feedback control strategy was realized, the strategy that all stands take part in control was gained and a formula of crown deviation distribution was deduced. On the basis of the formula, a crown feedback control model for hot tandem rolling was built, and it was on-line programmed, debugged and put into use. Up to now, the crown feedback control system has already run stably for about two months. Statistical results show that the crown control precision is improved with this crown feedback control system.
- hot rolling,
- crown,
- feedback,
- control strategy,
- control model