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http://dx.doi.org/10.5228/KSPP.2009.18.4.290

A Study on the Roll Gap Set-up to Compensate Thickness Variation at Top-end in Plate Rolling  

Yim, H.S. (부산대학교 기계공학부 / 정밀정형 및 금형가공연구센터)
Joo, B.D. (부산대학교 기계공학부 / 정밀정형 및 금형가공연구센터)
Lee, G.Y. (부산대학교 기계공학부 / 정밀정형 및 금형가공연구센터)
Seo, J.H. (POSCO 기술연구소)
Moon, Y.H. (부산대학교 기계공학부)
Publication Information
Transactions of Materials Processing / v.18, no.4, 2009 , pp. 290-295 More about this Journal
Abstract
The roll gap set-up in the finishing mill is one of the most important technologies in the hot plate rolling process. As the target thickness can be obtained by the correct set-up of the roll gap, improving the roll gap set-up technology is very critical for plate thickness accuracy. The main cause of thickness variation in hot plate mills is the non-uniform temperature distribution along the length of the slab. The objective of this study is to adjust the roll gap set-up for the thickness accuracy of plate in hot rolling process considering top-end temperature drop. Therefore this study has concentrated on determining the correct amounts of thickness variation according to top-end temperature drop and roll gap to compensate thickness variation. The control method of roll gap set-up which can improve the thickness accuracy was proposed. The off-line simulation of compensated roll gap significantly decreases top-end thickness variation.
Keywords
Plate Rolling; FEM; Roll Gap Set-up; Mill Modulus; Top-end Roll Gap;
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