B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/25, 341/43
B21B 37/50 (2006.01)
Patent
CA 1317487
ABSTRACT OF THE DISCLOSURE The invention is directed to a system for con- trolling the gauge and width dimensions of elongated steel strips processed in the finishing stage of a hot rolling mill. Loopers located between adjacent mill stands in the finishing stage apply tension to the strips such that the tension causes plastic deformation of the strip. By providing a dynamic adjustment of the tension responsive to gauge and width sensing devices, the amount of permanent defor- mation in the plastic region is controlled. By con- trolling the amount of permanent deformation of a strip in the plastic region, the adjustable tension of the loopers effectively reduces variations of both gauge and width to an extent previously not pos- sible. Preferably, corrections to width variation are carried out by the most upstream loopers. Cor- rections of gauge variations are carried out by downstream loopers and preferably by the last looper in the finishing stage.
604259
Blazevic David T.
Macrae & Co.
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