The advanced set-up and control system for Dofasco's tandem cold mill

Adaptation for tandem cold mill models

“…The availability of accurate models is associated to set-up optimization and adaptation methods, and, in function of this, has been intensely explored in the literature. Among optimization works, Pires et al (2006) report good results of quality and productivity after having applied a nonlinear simplex optimization method to set-up an industrial cold mill; Wang et al (2000) present the results of an investigation into an optimal scheduling for tandem cold mills based on genetic algorithm; Sekiguchi et al (1996) analyze set-up accuracy of low thickness reduction when using rougher rolls in an industrial mill and Fiebig and Zander (1982) present interesting concepts of productivity applied to set-up of cold rolling mills. At the same time, models will only be precise enough if equated with parameters representing the present status of the rolling process.…”

Set-up optimization for tandem cold mills: A case study

“…The importance of such optimization first appeared in Ref. [1] and it has been object of several recent works [2][3][4][5].…”

Adequacy of Cold Rolling Models to Upgrade Set-up Generation Systems

“…1) and it has been object of several works. [2][3][4][5][6] Usually, set-up generation task is performed by a system including powerful hardware and robust software based on a detailed process model. In this paper, two systems, both based on a cost function which evaluates the mill quality and productivity, are proposed.…”