Global Patent Index - EP 1368143 B1

EP 1368143 B1 20041110 - METHOD FOR SPECIFICALLY ADJUSTING THE SURFACE STRUCTURE OF ROLLING STOCK DURING COLD ROLLING IN SKIN PASS MILLS

Title (en)

METHOD FOR SPECIFICALLY ADJUSTING THE SURFACE STRUCTURE OF ROLLING STOCK DURING COLD ROLLING IN SKIN PASS MILLS

Title (de)

VERFAHREN ZUR GEZIELTEN EINSTELLUNG DER OBERFLÄCHENSTRUKTUR VON WALZGUT BEIM KALTNACHWALZEN IN DRESSIER-WALZGERÜSTEN

Title (fr)

PROCEDE DE REGLAGE APPROPRIE DE LA STRUCTURE SUPERFICIELLE D'UN MATERIAU LAMINE DURANT UN LAMINAGE FINISSEUR A FROID DANS DES LAMINOIRS D'ECROUISSAGE

Publication

EP 1368143 B1 20041110 (DE)

Application

EP 02726119 A 20020228

Priority

  • DE 10110323 A 20010303
  • EP 0202118 W 20020228

Abstract (en)

[origin: WO02070160A2] The invention relates to a method for specifically adjusting the surface structure of rolling stock (3) during cold rolling in skin pass mills. The aim of the invention is to partially transfer the surface structure of the working roll (2) onto the rolling stock (3). To this end, the change of roughness of the rolling stock (3) in the rolling process of a single- or multiple-stand, preferably two-stand skin pass mill is calculated in an optimization calculation in which the rolling parameters are varied according to the mill capacity using a tribological model that mathematically describes the friction conditions in the roll gap (1). The results obtained are then used to readjust at least a part of the rolling parameters used for calculation.

IPC 1-7

B21D 1/00

IPC 8 full level

B21B 1/28 (2006.01); B21B 1/22 (2006.01); B21B 37/00 (2006.01); B21D 1/00 (2006.01); B21B 1/36 (2006.01); B21B 45/02 (2006.01)

CPC (source: EP KR US)

B21B 1/22 (2013.01 - KR); B21B 1/227 (2013.01 - EP US); B21B 37/00 (2013.01 - EP US); B21B 1/28 (2013.01 - EP US); B21B 1/36 (2013.01 - EP US); B21B 45/0251 (2013.01 - EP US); B21B 2001/228 (2013.01 - EP US); B21B 2261/14 (2013.01 - EP US); B21B 2265/14 (2013.01 - EP US); B21B 2265/22 (2013.01 - EP US)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 02070160 A2 20020912; WO 02070160 A3 20021024; AT E281897 T1 20041115; AU 2002256630 B2 20070426; BR 0207450 A 20040601; BR 0207450 B1 20100629; CA 2439306 A1 20020912; CA 2439306 C 20100518; CN 1308094 C 20070404; CN 1494464 A 20040505; CZ 20032378 A3 20040218; CZ 298959 B6 20080319; DE 10110323 A1 20020905; DE 50201517 D1 20041216; EP 1368143 A2 20031210; EP 1368143 B1 20041110; ES 2231688 T3 20050516; JP 2004529772 A 20040930; KR 100840980 B1 20080624; KR 20030076720 A 20030926; MX PA03007922 A 20040524; RU 2003129449 A 20050210; RU 2286218 C2 20061027; US 2004069381 A1 20040415; US 6948346 B2 20050927; ZA 200305676 B 20030912

DOCDB simple family (application)

EP 0202118 W 20020228; AT 02726119 T 20020228; AU 2002256630 A 20020228; BR 0207450 A 20020228; CA 2439306 A 20020228; CN 02805924 A 20020228; CZ 20032378 A 20020228; DE 10110323 A 20010303; DE 50201517 T 20020228; EP 02726119 A 20020228; ES 02726119 T 20020228; JP 2002569320 A 20020228; KR 20037011397 A 20030829; MX PA03007922 A 20020228; RU 2003129449 A 20020228; US 46946603 A 20030828; ZA 200305676 A 20030723