Title :
Development and Application of Dynamic Shape Control System in Hot Wide Strip Mills
Author :
Shao, Jian ; He, Anrui ; Yang, Quan ; Shi, Naian
Author_Institution :
Nat. Eng. Res. Center of Adv. Rolling, Univ. of Sci. & Technol., Beijing, China
Abstract :
This paper describes the composition of dynamic shape control system in hot strip mills and its three functions including shape maintenancee, crown feedback control, flatness feedback control. A coupling model of rolling force and roll-bending force, a crown feedback control model and a flatness feedback control model based on digital PID controller are built and then online programming and debugging are completed. So far the dynamic shape control system is applied in many domestic hot wide strip lines. A lot of production data statistics indicates, after applying the dynamic shape control system, the hit rate of crown and flatness in Angang 2150mm hot strip mill are steadily over 97% and 96% respectively.
Keywords :
bending; digital control; feedback; hot rolling; maintenance engineering; rolling mills; shape control; strips; three-term control; digital PID controller; dynamic shape control system; flatness feedback control; hot wide strip mill; maintenance feedback control; online debugging; online programming; production data statistics; roll-bending force; rolling force; shape maintenance; Data models; Dynamic programming; Iron; Shape; Shape control; Steel; Strips; crown feedback; flatness feedback; hot strip mills; shape maintenancee;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.205
