Primetals Technologies Austria Gmbh

Primetals Technologies Germany Gmbh

Daniel Ott

Matthias Kurz

Andreas Maierhofer

Daniel Kotzian

Klaus Loehe

Martin Kerschensteiner

Mirko Tunk

Helmut Hlobil

Oliver Lang

A control device () for a roll stand (). During rolling of a metal strip () in the roll stand (), the device receives measurement data (M) for a lateral position (y) of the metal strip () on the inlet side and/or outlet side of the roll stand (). Taking into account parameters (P) of the stand regulator () on the basis of the deviation in the lateral position (y) from a target position (y*), a stand regulator () of the control device () determines a tilt value (δs) for the roll stand () and controls the roll stand () accordingly. The control device () determines at least one variable (V, V, Q, Q) from which it is derived, for both strip edges () of the metal strip (), whether the metal strip () forms an undulation () in the region of the particular strip edge (). As soon as the metal strip () forms an undulation () in the region of one of the strip edges (), the control device () varies at least one of the parameters (P) of the stand regulator (), such that the stand regulator () determines the tilt value (δs), starting from the variation in the at least one parameter (P), and taking into account the changed parameter (P).

Preventing undulations when rolling metal strips

Growing community of inventors

Linz, Austria

Daniel Ott