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Title

REDUCTION OF THE UNPRODUCTIVE TIMES IN THE TANDEM COLD MILL BY OPTIMIZING THE SIDE TRIMMER ADJUSTMENT AND USING THE AUTOMATIC SURFACE INSPECTION SYSTEM

Authorship

Polini, Glaucio Augusto; Luiz, Michel Rodrigo; Lazzarin, Giardini F.; Rampinelli, Magleife Eden Guasti; Rodrigues, Giovani; Melo, Leonardo de Souza

Polini, Glaucio Augusto

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Luiz, Michel Rodrigo

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Lazzarin, Giardini F.

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Rampinelli, Magleife Eden Guasti

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Rodrigues, Giovani

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Melo, Leonardo de Souza

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DOI

10.5151/9785-9785-32293

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Abstract

ArcelorMittal's pickling and cold rolling line has been demanded to increase production since the installation of equipments in 2015. In addition to the improvement in productivity related to these new equipment, one of them the automatic surface inspection system (SIAS), work has also been developed in other equipment seeking improvement of production indicators. The present article exposes the actions and gains that were achieved with actions on two equipments in the same section as the Side Trimmer. The first one deals with the optimization of time gains with sequencing adjustments without financial contribution, using only internal labor seeking reduction of unproductive times by adjustments of the side trimmer in the cold strip mill. The second item discussed demonstrates the actions and the gains generated due to the availability of new resources (installation of SIAS equipment), the optimization of these resources seeking a focus on the reduction of ruptures in the tandem cold mill, configuring the same in the aid of the identification of critical defects and also in the automatic speed reduction action of the tandem cold mill in defects considered serious. In both cases the intention was to improve production, seeking to improve the results of the section and the line.

Keywords

Bottleneck; preparation of side trimmer; setup in continuous processes, sias