Global Patent Index - EP 2563533 A2

EP 2563533 A2 20130306 - REDUCTION OF THE STRIP TENSION OF ROLLING STOCK BETWEEN TWO ROLLING UNITS TO A MINIMUM

Title (en)

REDUCTION OF THE STRIP TENSION OF ROLLING STOCK BETWEEN TWO ROLLING UNITS TO A MINIMUM

Title (de)

MINIMIERUNG DES BANDZUGS EINES WALZGUTES ZWISCHEN ZWEI WALZEINHEITEN

Title (fr)

MINIMISATION DE LA TENSION DE BANDE D'UN PRODUIT À LAMINER ENTRE DEUX UNITÉS DE LAMINAGE

Publication

EP 2563533 A2 20130306 (DE)

Application

EP 11717524 A 20110418

Priority

  • AT 7352010 A 20100430
  • EP 2011056079 W 20110418

Abstract (en)

[origin: WO2011134811A2] The invention relates to the reduction of the strip tension of rolling stock (1) between two rolling units to a minimum. The aim of the invention is to reduce the strip tension between two subsequent rolling units in a simple manner. This aim is achieved by a method comprising the following steps: transporting, by means of a roll train (5), the rolling stock (1) between two rolling units (2, 25) which are in contact with the rolling stock, a rolling stock loop (6) being formed in a depression (26) which is arranged in a section (27) of the roll train (5) between the two rolling units (2, 25) and said rolling stock loop (6) being supported by the roll train in at least one off-center section (13, 14) of the section (27), the supporting line (23) of the roll train (5) in said section corresponding to the catenary curve of the free span; detecting a measuring value of a loop depth (18) of the rolling stock loop (6) by means of a measuring device (7); calculating a rated value of the loop depth (18) especially depending on the material, thickness and temperature of the rolling stock (1) so that the rated value substantially corresponds to the free span; and controlling the main drives and/or the gap adjustment of the rolling units (2, 25) by means of a control device (10) while taking into consideration the rated value and the measured value of the loop depth (18) such that the loop depth (18) preferably corresponds to the rated value.

IPC 8 full level

B21B 37/50 (2006.01); B21B 37/52 (2006.01); B21B 37/58 (2006.01)

CPC (source: EP US)

B21B 37/50 (2013.01 - EP US); B21B 37/52 (2013.01 - EP US); B21B 37/58 (2013.01 - EP US); B65H 20/34 (2013.01 - US); B21B 39/02 (2013.01 - EP US); B21B 39/12 (2013.01 - EP US); B21B 41/00 (2013.01 - US); B21B 41/10 (2013.01 - EP US)

Citation (search report)

See references of WO 2011134811A2

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 2011134811 A2 20111103; WO 2011134811 A3 20111229; AT 509831 A1 20111115; AT 509831 B1 20120315; BR 112012027861 A2 20160809; BR 112012027861 B1 20201208; CN 102869460 A 20130109; CN 102869460 B 20160120; EP 2563533 A2 20130306; EP 2563533 B1 20140625; KR 101458757 B1 20141107; KR 20130038263 A 20130417; RU 2012151275 A 20140610; RU 2538436 C2 20150110; US 2013074557 A1 20130328; US 9694403 B2 20170704

DOCDB simple family (application)

EP 2011056079 W 20110418; AT 7352010 A 20100430; BR 112012027861 A 20110418; CN 201180021820 A 20110418; EP 11717524 A 20110418; KR 20127031512 A 20110418; RU 2012151275 A 20110418; US 201113695391 A 20110418