EP 0710513 A1 19960508 - Interstand tension controller for a continuous rolling mill
Title (en)
Interstand tension controller for a continuous rolling mill
Title (de)
Zugregelung zwischen den Gerüsten für ein kontinuierliches Walzwerk
Title (fr)
Système de réglage de tension entre les cages pour un laminoir continu
Publication
Application
Priority
- EP 94115882 A 19941007
- JP 25319993 A 19931008
Abstract (en)
An interstand tension controller for a continuous rolling mill having a plurality of rolling stands and provided with a looper (16) between the adjacent rolling stands (12, 13) controls two controlled variables, i.e., the interstand tension of the workpiece (10) and the looping angle of the looper (16), to adjust the measured interstand tension ( sigma m)and the measured looping angle (θm) to desired values ( sigma r, θr), has control loops that control the rotating speed of the rolls of the rolling stand and the looping torque or the looping speed of the looper (16) to regulate the interstand tension and the looping angle, estimates disturbances acting on the control loops, the variation of the characteristics of the controlled system and the interference between the control loops, and operates manipulated variables to offset the disturbances. <IMAGE>
IPC 1-7
IPC 8 full level
B21B 37/50 (2006.01)
CPC (source: EP)
B21B 37/50 (2013.01)
Citation (search report)
- [X] DE 4003548 A1 19900809 - TOSHIBA KAWASAKI KK [JP]
- [X] DE 2618901 A1 19761111 - ISHIKAWAJIMA HARIMA HEAVY IND
- [A] DE 3314466 A1 19831103 - TOKYO SHIBAURA ELECTRIC CO [JP]
- [A] EP 0005450 A2 19791128 - HOESCH ESTEL WERKE AG [DE]
- [A] DE 2821396 A1 19791129 - HOESCH WERKE AG
- [A] EP 0162361 A2 19851127 - SCHLOEMANN SIEMAG AG [DE]
- [DA] PATENT ABSTRACTS OF JAPAN vol. 8, no. 238 (M - 335) 31 October 1984 (1984-10-31)
- [DA] PATENT ABSTRACTS OF JAPAN vol. 8, no. 238 (M - 335) 31 October 1984 (1984-10-31)
- [DA] PATENT ABSTRACTS OF JAPAN vol. 8, no. 227 (M - 332) 18 October 1984 (1984-10-18)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94115882 A 19941007