2019 Pittsburgh AISTech

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New Control Concept for ESP Thin-Gauge Rolling Improves Thickness Quality (Room 306)

Hot rolling thin gauges without cold rolling tremendously reduces production costs. With Arvedi ESP (Endless Strip Production) lines achieving exit thickness down to 0.6 mm, the requirements for tension and thickness control of finishing mills have increased. A new control concept for hot rolling thin gauges with existing instrumentation is based on the cold rolling control concept successfully used many times in tandem cold rolling mills. The concept is based on fast roll gap change to control entry strip tension. Results from the Arvedi ESP No. 4 line at Rizhao Iron and Steel Co. have shown excellent strip tension and thickness performance.