Global Patent Index - EP 1491268 A3

EP 1491268 A3 20060215 - Method for cold rolling metal strip

Title (en)

Method for cold rolling metal strip

Title (de)

Verfahren zum Kaltwalzen metallischen Bandes

Title (fr)

Procédé de laminage à froid de bandes métalliques

Publication

EP 1491268 A3 20060215 (DE)

Application

EP 04013220 A 20040604

Priority

DE 10328472 A 20030625

Abstract (en)

[origin: EP1491268A2] Cold rolling a metallic strip wound by a coil comprises detecting unreliably large fluctuations of hardness of the strip, in which the strip thickness, rolling force and strip tension of the strip and/or fluctuations of the exiting strip are acquired using cross-correlation or Fast-Fourier transformation or with the aid of error parameter detectors depending on rotatory harmonic fluctuations.

IPC 8 full level

B21B 37/62 (2006.01); B21B 37/54 (2006.01); B21B 38/00 (2006.01); G05B 17/02 (2006.01); B21B 1/28 (2006.01); B21B 1/36 (2006.01); B21B 37/38 (2006.01)

CPC (source: EP)

B21B 37/54 (2013.01); B21B 37/62 (2013.01); B21B 38/00 (2013.01); B21B 1/28 (2013.01); B21B 1/36 (2013.01); B21B 37/38 (2013.01)

Citation (search report)

  • [PXPA] DE 10234047 A1 20040205 - ABB PATENT GMBH [DE]
  • [XA] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13 30 November 1998 (1998-11-30)
  • [XA] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 006, no. 086 (M - 131) 25 May 1982 (1982-05-25)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 016, no. 119 (M - 1225) 25 March 1992 (1992-03-25)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 011, no. 258 (M - 618) 21 August 1987 (1987-08-21)
  • [A] DATABASE WPI Section Ch Week 198447, Derwent World Patents Index; Class M21, AN 1984-292637, XP002359840

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1491268 A2 20041229; EP 1491268 A3 20060215; EP 1491268 B1 20081126; AT E415213 T1 20081215; DE 10328472 A1 20050127; DE 502004008511 D1 20090108

DOCDB simple family (application)

EP 04013220 A 20040604; AT 04013220 T 20040604; DE 10328472 A 20030625; DE 502004008511 T 20040604