EP 0121620 A1 19841017 - Bake-hardenable aluminium alloy sheets and process for manufacturing same.
Title (en)
Bake-hardenable aluminium alloy sheets and process for manufacturing same.
Title (de)
Einbrennhärtbare Aluminiumlegierung für Feinbleche und Verfahren zu ihrer Herstellung.
Title (fr)
Feuillards en alliage d'aluminium durcissant lors de la cuisson du vernis et leur procédé de fabrication.
Publication
Application
Priority
EP 83302017 A 19830411
Abstract (en)
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)
Citation (search report)
- [X] FR 2432555 A1 19800229 - COORS CONTAINER CO [US]
- [X] FR 2432556 A1 19800229 - ALUSUISSE [CH]
- [A] US 3787248 A 19740122 - WINTER J, et al
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