EP 0121620 B1 19860625 - BAKE-HARDENABLE ALUMINIUM ALLOY SHEETS AND PROCESS FOR MANUFACTURING SAME
Title (en)
BAKE-HARDENABLE ALUMINIUM ALLOY SHEETS AND PROCESS FOR MANUFACTURING SAME
Publication
Application
Priority
EP 83302017 A 19830411
Abstract (en)
[origin: EP0121620A1] A bake-hardenable aluminium alloy sheet for can bodies, ends and/or tabs, containing 0.05 to 0.5% of Cu, 0.5 to 2.5% of Mg and 0.5 to 2.0% of Mn and having an average crystal grain width less than 25 microns after cold rolling. There is also disclosed a process for producing such a bake-hardenable aluminium alloy sheet, which comprises: smelting and casting an aluminium alloy containing 0.05 to 0.5% of Cu, 0.5 to 2.5% of Mg and 0.5 to 2% of Mn; hot rolling the resulting ingot after a soaking treatment at a temperature higher than 500 DEG C; heating the hot-rolled alloy or cold rolled alloy after hot rolling to a temperature in the range of 400 to 600 DEG C at a heating speed higher than 100 DEG C/min immediately after the heating or after heat retention for a time period shorter than 10 minutes, cooling the alloy at a cooling speed higher than 100 DEG C/hr while maintaining in solid solution the alloy elements which contribute to the bake-hardening effect; and cold-rolling said alloy at a reduction rate greater than 10%.
IPC 1-7
IPC 8 full level
C22C 21/06 (2006.01)
CPC (source: EP)
C22C 21/06 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0121620 A1 19841017; EP 0121620 B1 19860625; DE 3364258 D1 19860731
DOCDB simple family (application)
EP 83302017 A 19830411; DE 3364258 T 19830411