Dual cascade control system for a long rolling mill
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United States of America Patent
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Apr 25, 2017
Grant Date -
Jul 25, 2013
app pub date -
Jan 14, 2013
filing date -
Jan 19, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A system for maintaining a continuous speed in a long rolling mill is provided that includes a plurality of guide rollers that feed a billet product from a caster to an entry roll stand along a mill pass line to an exit roll stand. Also, the system includes a plurality of gauges positioned at a plurality of locations along the mill pass line, the gauges perform speed measurement of the billet product passing along the guide rollers. Furthermore, the system includes a logic controller that receives the speed measurement and maintains a speed relationship where the speed between the caster and the entry roll stand is constant as well as the exit speed of the end roll stand is also constant.
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