EP 1020240 B1 20030312 - Method of tension/compression control in a multistand hot rolling mill and corresponding control system
Title (en)
Method of tension/compression control in a multistand hot rolling mill and corresponding control system
Title (de)
Verfahren zur Zug-/Druckregelung in einem Vielständer-Warmwalzwerk und entsprechendes Regelungssystem
Title (fr)
Procédé de régulation des tractions/compressions dans un laminoir multicage à chaud et système de commande correspondant
Publication
Application
Priority
FR 9900181 A 19990111
Abstract (en)
[origin: EP1020240A1] Regulation of the traction and/or compression in a multi-cage rolling mill working with hot metal products comprises measuring the value of the rolling couple for each cage (11, 12, 1j, 1n) traversed by the metal product (B) at the moment where this product goes on to reach the following cage and then when the cage for which the measure is effected is commuted by regulation of the couple. The last cage reached by the product delayed by regulation of the speed and acts in so far as a pilot cage with respect to all other cages situated upstream, in order to allow this to conserve a couple equal to its reference couple by adaptation of its seed. When the measures of the reference couple have been memorized in the control system (2, 3) the regulation is obtained by exploitation of a key of the distribution of the constraints between cages. The control system using this method of regulation for a multi-cage hot rolling mill is also claimed.
IPC 1-7
IPC 8 full level
B21B 37/00 (2006.01); B21B 37/48 (2006.01); B21B 37/52 (2006.01)
CPC (source: EP KR US)
B21B 37/00 (2013.01 - KR); B21B 37/52 (2013.01 - EP US); B21B 2275/04 (2013.01 - EP US); B21B 2275/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1020240 A1 20000719; EP 1020240 B1 20030312; AT E234166 T1 20030315; BR 0000530 A 20001017; CN 1260251 A 20000719; DE 60001589 D1 20030417; DE 60001589 T2 20040408; DK 1020240 T3 20030714; ES 2193922 T3 20031116; FR 2788233 A1 20000713; FR 2788233 B1 20010223; ID 24145 A 20000713; JP 2000202513 A 20000725; KR 20000053431 A 20000825; PT 1020240 E 20030731; TW 524724 B 20030321; US 6205829 B1 20010327
DOCDB simple family (application)
EP 00400038 A 20000110; AT 00400038 T 20000110; BR 0000530 A 20000110; CN 00100948 A 20000111; DE 60001589 T 20000110; DK 00400038 T 20000110; ES 00400038 T 20000110; FR 9900181 A 19990111; ID 20000009 D 20000111; JP 2000001286 A 20000107; KR 20000000829 A 20000110; PT 00400038 T 20000110; TW 89100366 A 20000111; US 47990400 A 20000110