Improvement of the width control on hot rolling mills
Project ID: 7210-EA/414Funded under: ECSC-STEELRES 7C
The two main types of width defects are defects in the body of the rolled product, mainly due to skid marks or to defects on the initial slab, and defects at the end of the rolled product, particularly at the head. A system designed for width control in hot rolling must integrate the control of both roughing and finishing, in order to maintain control over all the operating parameters which influence the final variations of width of the strip. The aim of this project is to analyse the influence of the operating parameters on the increased width in both roughing and finishing processes. The work carried out can be divided into the following six phases: (a) analysis of the performance of the strip roughing mill as regards width control; (b) experimental rolling trials in the roughing mill; (c) the development of a mathematical model for the changes in the width; (d) testing the model and evaluating the results; (e) analysis of the influence of the finishing mill on the width, and development of a model to calculate interstand tension; (f) laboratory tests to evaluate creep phenomena in samples subject to tensions of the same order as those calculated with the model in point (c).
Bibliographic Reference: EUR 13659 IT (1992) 79 pp., FS, ECU 8.75
ISBN: ISBN 92-826-3257-1
Record Number: 199210114 / Last updated on: 1994-12-02
Original language: it
Available languages: it