Tandem Cold Metal Rolling Mill Control by John Pittner download in pdf, ePub, iPad
The resulting strip excitation is measured by non-contact eddy current sensors and converted to flatness distribution. The model-based flatness-control system, which incorporates multi-variable functions, allows the tightest flatness tolerances to be met. Smooth operations can be achieved to reduce the danger of roll surface damage or strip breaks. He has published extensively on the control of various areas of metal processing which include tandem hot and cold rolling applications.
As an alternative, non-contact flatness measurement is based on periodic excitation of the strip and measurement of the excitation amplitude across the strip width. Thickness variations at mill exit come not only from the incoming strip gauge variations or from the forward slip effect from changes in strip tension, but also from eccentricity of rolls.
Safety System - For a maximum risk reduction of your lines Safety requirements are getting stricter to protect personnel from harm through industrial injuries. Maximum flexibility of the rolling schedule can be retained as an additional requirement. Excitation force is applied by creating a low pressure between the strip and the sensor plate below the pass line of the mill stand. This package comprises all electrical and automation components of the whole drive train for mill stands or coilers.
Cold rolling on continuous tandem cold mills requires methods to optimize production and minimize yield losses on the transition between individual strips. The Safety System also comprises safety stop solutions for drives and hydraulic equipment. Speed Optimization System Speed optimization achieves smooth running production, i.
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