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Research has been undertaken with the aim of examining and evaluating the effectiveness of different hot deformation strategies to reduce bar width fluctuations and end scrap in hot strip roughing trains in comparison with the conventional approach. Process strategies tested in model-based and field measurements to reduce the trimming and cropping scrap in hot strip production have featured edg-ing, tapering of the transfer bar ends, reduction of the transfer bar width through step-by-step sizing, and progressive control of the vertical roll setting. The results obtained with the method of progressive width control are shown in the diagram.
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Width deviations of the transfer bars after rolling with and without
progressive control
Distance from the strip ends
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