Global Patent Index - EP 0928644 B1

EP 0928644 B1 20021218 - Control method for continuous skinpass rolling of metal strip

Title (en)

Control method for continuous skinpass rolling of metal strip

Title (de)

Regelungsverfahren für kontinuierliches Nachwalzen von Stahlband

Title (fr)

Procédé de pilotage d'une opération d'écrouissage en continu d'une bande métallique

Publication

EP 0928644 B1 20021218 (FR)

Application

EP 99400036 A 19990108

Priority

FR 9800214 A 19980113

Abstract (en)

[origin: EP0928644A1] The strip passes through an upstream reduction rolling mill cage (2) and a downstream cage (3). The tightening force of the upstream cage (2) is regulated as a function of the tension between the two cages (2, 3), the response time for this regulation being chosen to be very much greater than the response time for the speed of regulation. The strip passes through an upstream reduction rolling mill cage (2) and a downstream cage (3). The speed of the upstream cage (2) is regulated with respect to the downstream cage (3) as a function of the rate of elongation caused by the upstream cage (2). The tightening force of the upstream cage (2) is regulated as a function of the tension between the two cages (2, 3), the response time for this regulation being chosen to be very much greater than the response time for the speed of regulation.

IPC 1-7

B21B 37/56

IPC 8 full level

B21B 37/56 (2006.01); B21B 1/22 (2006.01)

CPC (source: EP US)

B21B 37/56 (2013.01 - EP US); B21B 2001/228 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

EP 0928644 A1 19990714; EP 0928644 B1 20021218; AT E229849 T1 20030115; BR 9900047 A 20000104; CA 2259110 A1 19990713; CA 2259110 C 20070508; DE 69904513 D1 20030130; DE 69904513 T2 20030911; FR 2773505 A1 19990716; FR 2773505 B1 20000225; US 6079242 A 20000627

DOCDB simple family (application)

EP 99400036 A 19990108; AT 99400036 T 19990108; BR 9900047 A 19990113; CA 2259110 A 19990112; DE 69904513 T 19990108; FR 9800214 A 19980113; US 22956599 A 19990113