EP 0375094 B1 19960918 - Method and device for the hot-rolling of strip
Title (en)
Method and device for the hot-rolling of strip
Title (de)
Verfahren und Vorrichtung zum Warmbandwalzen
Title (fr)
Procédé et dispositif pour le laminage de bandes à chaud
Publication
Application
Priority
- DE 3843730 A 19881222
- DE 3843731 A 19881222
Abstract (en)
[origin: EP0375095A2] The invention relates to a method and a device for controlling the strip width during the hot-rolling of strip on a multiple-stand finishing line of a rolling mill train in which the speeds of the working rolls of each stand are controlled as a function of the instantaneous operating state. Here, the strip widths are sensed directly after the last reduction per pass and/or before the penultimate reduction per pass and are compared with the desired width in a width controller. In the event of deviations, a strip-supply controller for the strip supply between the last stands is acted upon, which strip-supply controller, by adjusting the roll nips, corrects the strip supply and the tensile stress of the strip in such a way that the strip width changes. The method is optimized by additional control of the strip thickness according to the novel strip-supply principle as well as by dispensing with some loop lifters. <IMAGE>
IPC 1-7
IPC 8 full level
B21B 37/00 (2006.01); B21B 37/16 (2006.01); B21B 37/22 (2006.01); B21B 37/50 (2006.01); B21B 37/58 (2006.01); B21B 37/72 (2006.01)
CPC (source: EP)
B21B 37/165 (2013.01); B21B 37/22 (2013.01); B21B 37/50 (2013.01); B21B 37/72 (2013.01); B21B 2261/06 (2013.01); B21B 2271/02 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0375095 A2 19900627; EP 0375095 A3 19921223; EP 0375095 B1 19960131; AT E133591 T1 19960215; AT E142916 T1 19961015; DE 58909588 D1 19960314; DE 58909734 D1 19961024; EP 0375094 A2 19900627; EP 0375094 A3 19921223; EP 0375094 B1 19960918
DOCDB simple family (application)
EP 89250130 A 19891222; AT 89250129 T 19891222; AT 89250130 T 19891222; DE 58909588 T 19891222; DE 58909734 T 19891222; EP 89250129 A 19891222