摘要 |
An automatic gauge control system for screwdown adjustment of a cold rolling mill using separate feed-forward and feed-backward screwdown adjustments and wherein the feed-backward screwdown adjustment is based on the difference between a short term output gauge average and an input gauge rolling average which is adaptively modified with a statistical analysis of output gauge variations and wherein the feed-forward screwdown adjustment is based on a net weighted iput gauge variation adaptively controlled in accordance with a statistical analysis of input and output gauge variations.
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