Development of strip crown control system in hot strip mill

Author

Gondo, Hiroshi ; Kikuchi, Takaya ; Furukawa, Takato ; Motcyashiki, Y.

Author_Institution

Process Control Dept., NKK Corp., Hiroshima, Japan

Volume

3

fYear

1994

fDate

5-9 Sep 1994

Firstpage

1999

Abstract

In order to control hot strip crown and flatness, a paired crossed roll mill was installed in No.1 Hot Strip Mill in NKK Fukuyama Works. Mathematical models for cross angle setting and a new method to set each stand cross angle have been applied to an online process computer system, in order to control strip crown and flatness effectively. Mathematical models of strip crown are based on a roll deformation, and accuracy was improved. The characteristic of the mill setting model is the application of fuzzy membership function. Using the new control system, strip crown can be controlled accurately

Keywords

fuzzy control; hot rolling; process control; real-time systems; spatial variables control; steel industry; NKK Fukuyama Works; cross angle setting; flatness control; fuzzy control; fuzzy membership function; hot strip mill; mathematical models; online process computer system; roll deformation; strip crown control system; Application software; Control systems; Finishing; Milling machines; Optical control; Process control; Shape control; Strips; Thickness control; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on

Conference_Location

Bologna

Print_ISBN

0-7803-1328-3

Type

conf

DOI

10.1109/IECON.1994.398126

Filename

398126