Global Patent Index - EP 2162245 A1

EP 2162245 A1 20100317 - ROLLING OF A STRIP IN A ROLLING TRAIN USING THE LAST STAND OF THE ROLLING TRAIN AS A TENSION REDUCER

Title (en)

ROLLING OF A STRIP IN A ROLLING TRAIN USING THE LAST STAND OF THE ROLLING TRAIN AS A TENSION REDUCER

Title (de)

WALZEN EINES BANDES IN EINER WALZSTRASSE UNTER NUTZUNG DES LETZEN GERÜSTS DER WALZSTRASSE ALS ZUGVERRINGERER

Title (fr)

LAMINAGE D'UN FEUILLARD DANS UN LAMINOIR EN UTILISANT LA DERNIÈRE CAGE DU LAMINOIR COMME RÉDUCTEUR DE TRACTION

Publication

EP 2162245 A1 (DE)

Application

EP 08774590 A

Priority

  • EP 2008058444 W
  • DE 102007031333 A

Abstract (en)

[origin: WO2009004005A1] A rolling train for rolling a strip (4) has a number of main rolling stands (1, 1') and a coiler (2) arranged downstream of the main rolling stands (1, 1'). The main rolling stands (1, 1') respectively have work rolls (5, 5') and at least backing rolls (6, 6'). Data (d-in, d-out, b, T) of the strip (4), which establish at least an overall pass reduction other than zero by which an initial thickness (d-in) of the strip (4) is to be reduced in the rolling train, are fed to a control device (3) of the rolling train. The control device (3) determines individual pass reductions for the main rolling stands (1, 1') on the basis of the data (d-in, d-out, b, T) fed to it. It controls the main rolling stands (1, 1') and the coiler (2) in such a way that the strip (4) is rolled in the main rolling stands (1, 1') in accordance with the individual pass reductions determined and is then coiled up by the coiler (2). The control device (3) determines the individual pass reductions in such a way that the individual pass reduction of the main rolling stand (1') arranged directly upstream of the coiler (2) is zero. It controls the main rolling stand (1') arranged directly upstream of the coiler (2) in such a way that - with respect to this main rolling stand (1') - the tension (Za) in the strip (4) on the outlet side is less than the tension (Ze) on the inlet side, but the strip (4) runs through this main rolling stand (1') without undergoing any forming, at least on one side.

IPC 8 full level

B21B 37/48 (2006.01); B21B 37/58 (2006.01)

CPC (source: EP)

B21B 37/48 (2013.01); B21B 37/58 (2013.01); B21B 1/24 (2013.01); B21B 1/28 (2013.01); B21B 1/32 (2013.01); B21B 1/36 (2013.01); B21B 2015/0057 (2013.01); B21B 2265/02 (2013.01); B21B 2265/04 (2013.01); B21B 2265/08 (2013.01); B21B 2265/12 (2013.01); B21B 2265/14 (2013.01); B21B 2275/04 (2013.01)

Citation (search report)

See references of WO 2009004005A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

DE 102007031333 A1 20090115; BR PI0814648 A2 20150310; CN 101687235 A 20100331; CN 101687235 B 20120704; EP 2162245 A1 20100317; EP 2162245 B1 20130424; PL 2162245 T3 20130930; RU 2010103790 A 20110810; RU 2461435 C2 20120920; US 2010193623 A1 20100805; US 8676371 B2 20140318; WO 2009004005 A1 20090108

DOCDB simple family (application)

DE 102007031333 A 20070705; BR PI0814648 A 20080701; CN 200880023536 A 20080701; EP 08774590 A 20080701; EP 2008058444 W 20080701; PL 08774590 T 20080701; RU 2010103790 A 20080701; US 66772108 A 20080701