Global Patent Index - EP 1682288 B1

EP 1682288 B1 20090617 - METHOD AND DEVICE FOR APPLYING AN ADJUSTABLE TENSILE-STRESS DISTRIBUTION, IN PARTICULAR IN THE EDGE REGIONS OF COLD-ROLLED METAL STRIPS

Title (en)

METHOD AND DEVICE FOR APPLYING AN ADJUSTABLE TENSILE-STRESS DISTRIBUTION, IN PARTICULAR IN THE EDGE REGIONS OF COLD-ROLLED METAL STRIPS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM AUFBRINGEN EINER REGELBAREN ZUGSPANNUNGSVERTEILUNG, INSBESONDERE IN DEN KANTENBEREICHEN KALTGEWALZTER METALLBÄNDER

Title (fr)

PROCEDE ET DISPOSITIF POUR ETABLIR UNE DISTRIBUTION DE CONTRAINTES DE TRACTION AJUSTABLE, EN PARTICULIER DANS LES ZONES DE BORD DE BANDES METALLIQUES LAMINEES A FROID

Publication

EP 1682288 B1 20090617 (DE)

Application

EP 04764552 A 20040827

Priority

  • EP 2004009578 W 20040827
  • DE 10340694 A 20030904
  • DE 10352546 A 20031111

Abstract (en)

[origin: WO2005023444A2] The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths. To achieve these aims, at least one or a combination of two of the following measures are implemented: a) separation of lubrication and cooling of the working rolls by lubricating on the run-in side and cooling on the discharge side, b) additional influencing of the strip edges using a hot edge spray", in particular by spraying (21) rolling oil with differing temperatures in zones, c) use of a special cross-sectional configuration of the working rolls (12, 12') in the vicinity of the strip edges, which creates a partial material build-up during the blooming pass, said build-up forming a longer strip edge with subsequent passes, thus counteracting the risk of an excessive build-up of tensile stress.

IPC 8 full level

B21B 37/28 (2006.01); B21B 37/32 (2006.01); B21B 45/02 (2006.01); B21B 1/40 (2006.01); B21B 13/14 (2006.01); B21B 27/02 (2006.01); B21B 27/10 (2006.01); B21B 37/44 (2006.01); B21B 39/08 (2006.01)

CPC (source: EP)

B21B 37/28 (2013.01); B21B 37/32 (2013.01); B21B 45/0278 (2013.01); B21B 1/40 (2013.01); B21B 13/142 (2013.01); B21B 27/02 (2013.01); B21B 27/106 (2013.01); B21B 37/44 (2013.01); B21B 39/08 (2013.01); B21B 45/0251 (2013.01); B21B 2027/103 (2013.01)

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)

WO 2005023444 A2 20050317; WO 2005023444 A3 20060126; AT 433809 T 20090715; BR PI0414152 A 20061031; BR PI0414152 B1 20151020; CA 2537501 A1 20050317; CA 2537501 C 20101019; CN 1845803 A 20061011; CN 1845803 B 20100915; DE 10352546 A1 20050331; DE 502004009629 D1 20090730; EP 1682288 A2 20060726; EP 1682288 B1 20090617; ES 2325539 T3 20090908; JP 2007504007 A 20070301; JP 4936889 B2 20120523; KR 101109459 B1 20120131; KR 20060067967 A 20060620; RU 2006110636 A 20060810; RU 2358820 C2 20090620; TW 200520864 A 20050701; TW I320726 B 20100221; US 2007186609 A1 20070816; US 7434435 B2 20081014; ZA 200601117 B 20070425

DOCDB simple family (application)

EP 2004009578 W 20040827; AT 04764552 T 20040827; BR PI0414152 A 20040827; CA 2537501 A 20040827; CN 200480025423 A 20040827; DE 10352546 A 20031111; DE 502004009629 T 20040827; EP 04764552 A 20040827; ES 04764552 T 20040827; JP 2006525083 A 20040827; KR 20067004434 A 20040827; RU 2006110636 A 20040827; TW 93126157 A 20040831; US 57041304 A 20040827; ZA 200601117 A 20060208