Abstract
In the manufacturing process of hot strip continuous rolling, it is one of key factors to ensure stability rolling and better quality of strip, to keep the relatively invariable strip tension between two stands. Draft compensation was adopted, which takes the initiative to compensate roller speed, in order to decrease the coupling effect of automatic gauge control subsystem, automatic speed regulator subsystem and automatic tension control subsystem in the control system of the hot strip rolling mill. As a result, the strip tension fluctuating was deceased effectively, which kept steady looper angle and improved strip thickness precision.
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