EP 1245690 B1 20061011 - Copper, copper alloy, and manufacturing method therefor
Title (en)
Copper, copper alloy, and manufacturing method therefor
Title (de)
Kupfer sowie Kupferlegierung und Verfahren zur Herstellung
Title (fr)
Cuivre et alliage de cuivre et procédé de fabrication
Publication
Application
Priority
JP 2001091179 A 20010327
Abstract (en)
[origin: EP1245690A1] Copper and copper alloy comprises: a structure having fine crystal grains with grain size of 1 mu m or less after a final cold rolling with a reduction eta , wherein eta is expressed in the following formula and satisfying eta ≥ 3; and an elongation of 2% or more in a tensile test. <DF> eta = ln (T0/T1) </DF> T0: plate thickness before rolling, T1: plate thickness after rolling. <IMAGE>
IPC 8 full level
C22C 9/00 (2006.01); C22F 1/08 (2006.01); B21B 3/00 (2006.01)
CPC (source: EP KR US)
B21B 3/00 (2013.01 - EP US); C22C 9/00 (2013.01 - KR); C22F 1/08 (2013.01 - EP US); B21B 2003/005 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR IT LI SE
DOCDB simple family (publication)
EP 1245690 A1 20021002; EP 1245690 B1 20061011; CN 1223690 C 20051019; CN 1386873 A 20021225; DE 60215240 D1 20061123; DE 60215240 T2 20070503; KR 100513943 B1 20050909; KR 20020076139 A 20021009; US 2002189729 A1 20021219; US 2008277032 A1 20081113
DOCDB simple family (application)
EP 02006886 A 20020326; CN 02119270 A 20020327; DE 60215240 T 20020326; KR 20020016015 A 20020325; US 10545402 A 20020326; US 13404308 A 20080605