EP 4402297 A1 20240724 - HEAT TREATABLE ALUMINIUM ALLOY WITH IMPROVED MECHANICAL PROPERTIES AND METHOD FOR PRODUCING IT
Title (en)
HEAT TREATABLE ALUMINIUM ALLOY WITH IMPROVED MECHANICAL PROPERTIES AND METHOD FOR PRODUCING IT
Title (de)
WÄRMEBEHANDELBARE ALUMINIUMLEGIERUNG MIT VERBESSERTEN MECHANISCHEN EIGENSCHAFTEN UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
ALLIAGE D'ALUMINIUM APTE AU TRAITEMENT THERMIQUE À PROPRIÉTÉS MÉCANIQUES AMÉLIORÉES ET PROCÉDÉ POUR SA PRODUCTION
Publication
Application
Priority
- NO 20211106 A 20210914
- EP 2022075482 W 20220914
Abstract (en)
[origin: WO2023041557A1] The present invention relates to a method for processing extrusion billets or billets produced from an aluminium 6xxx alloy to finished or semi-finished products such as profiles or blanks, comprising a) Homogenizing the extrusion ingot or billetb) soft annealing operation followed by preheating and extrusion of the billet to form aprofile or blank, whereafter the profile or blank is exposed to a solutionising operation,where the 6xxx alloy contains Mg in the range 0.85-1.15 wt % and Si in the range0.60-0.75 wt%, Fe in the range 0-0.5 wt%, Cu in the range 0-0.30 wt%, Cr in therange 0-0.10 wt%, Mn in the range 0-0.20 wt%, Zn in the range 0-0.5 wt%, Ti in therange 0-0.15 wt%, V in the range 0-0.15 wt% and other elements not specified belowin the range 0-0.05 wt%, with balance Al, the Mg/Sieff ratio of the alloy being above1.6, where Sieff = Si - ⅓ wt%(Fe+Cr+Mn+Zr).
IPC 8 full level
C22C 21/08 (2006.01); B21C 23/00 (2006.01); C22F 1/00 (2006.01); C22F 1/047 (2006.01)
CPC (source: EP NO)
B21C 23/002 (2013.01 - EP); C22C 21/08 (2013.01 - EP NO); C22F 1/002 (2013.01 - EP); C22F 1/047 (2013.01 - EP NO)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2023041557 A1 20230323; CA 3231178 A1 20230323; EP 4402297 A1 20240724; NO 20211106 A1 20230315; NO 347077 B1 20230508
DOCDB simple family (application)
EP 2022075482 W 20220914; CA 3231178 A 20220914; EP 22789871 A 20220914; NO 20211106 A 20210914