Global Patent Index - EP 1230045 A1

EP 1230045 A1 20020814 - COLD ROLLING METHOD

Title (en)

COLD ROLLING METHOD

Title (de)

KALTWALZVERFAHREN

Title (fr)

PROCEDE DE LAMINAGE A FROID

Publication

EP 1230045 A1 20020814 (DE)

Application

EP 00972882 A 20001031

Priority

  • DE 19953230 A 19991104
  • EP 0010711 W 20001031

Abstract (en)

[origin: WO0132326A1] The invention relates to a cold rolling method for metal stock (4). The metal stock that is to be rolled (4) passes through a roll gap (3) between rollers (2) which are driven in an opposite direction at room temperature for plastic deformation. In order to avoid problems caused by the use of liquid cooling lubricants and to create an improved surface quality of said stock (4), an inert gas is blown into the region of the roll gap (3) whereby the inert gas is of a lower temperature than the temperature of the stock that is rolled in said roll gap. A further object of the invention is a cold rolling stand for carrying out the above-mentioned method.

IPC 1-7

B21B 9/00

IPC 8 full level

B21B 1/36 (2006.01); B21B 9/00 (2006.01); B21B 45/02 (2006.01)

CPC (source: EP US)

B21B 1/36 (2013.01 - EP US); B21B 9/00 (2013.01 - EP US); B21B 45/0206 (2013.01 - EP US); B21B 45/0209 (2013.01 - EP US); B21B 45/0242 (2013.01 - EP US); B21B 2045/0212 (2013.01 - EP US)

Citation (search report)

See references of WO 0132326A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 0132326 A1 20010510; AT E257749 T1 20040115; AU 1145401 A 20010514; BR 0015467 A 20020625; BR 0015467 B1 20081118; CA 2390171 A1 20010510; CA 2390171 C 20080115; DE 19953230 A1 20010523; DE 19953230 C2 20030828; DE 50005041 D1 20040219; EP 1230045 A1 20020814; EP 1230045 B1 20040114; ES 2214330 T3 20040916; MX PA02004110 A 20030820; US 6874344 B1 20050405

DOCDB simple family (application)

EP 0010711 W 20001031; AT 00972882 T 20001031; AU 1145401 A 20001031; BR 0015467 A 20001031; CA 2390171 A 20001031; DE 19953230 A 19991104; DE 50005041 T 20001031; EP 00972882 A 20001031; ES 00972882 T 20001031; MX PA02004110 A 20001031; US 12964702 A 20020506