2019 Pittsburgh AISTech
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Feedback Control for Hook, Camber, Wedge and Strip Steering in a Hot Strip Mill
(
Room
306
)
07 May 19
2:30 PM
-
3:00 PM
Tracks:
Hot Sheet Rolling
Speaker(s):
Matthias Kurz, Primetals Technologies;
Klaus Löhe, Primetals Technologies;
Niklas Petrasch, thyssenkrupp
New strip steering technologies have been activated at hot strip mill No. 1 of thyssenkrupp in Duisburg, Germany. The system consists of two main components. In the finishing mill, camera signals are used to swivel mill stands in-bar at thread-in and during rolling to minimize the lateral movements of the produced strip. In the roughing mill, a newly developed algorithm detects hook ends from the camera readings. The swivel values in the roughing mill are derived from a strip-to-strip feedback control, which considers the measured wedge behind the finishing mill and the detected hook ends on the transfer bar.
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