EP 1373591 A2 20040102 - METHOD FOR AGING 7000 SERIES ALUMINIUM
Title (en)
METHOD FOR AGING 7000 SERIES ALUMINIUM
Title (de)
VERFAHREN ZUR ALTERUNG VON ALUMINIUM DER 7000 SERIEN
Title (fr)
PROCEDE PERMETTANT D'AUGMENTER LA SOLIDITE ET/OU LA RESISTANCE A LA CORROSION D'ALLIAGES AEROSPACIAUX D'ALUMINIUM DE LA SERIE 7000
Publication
Application
Priority
- US 0208538 W 20020320
- US 27740301 P 20010320
Abstract (en)
[origin: WO02075010A2] This invention relates to a method for artificially aging 7000 Series Al aerospace alloys to impart improved strength and/or corrosion resistance performance thereto. The method purposefully adds a second aging step or stage to a one-step tempering, or a third step/stage to a low-high, two-step aging operation. The added step/stage extends at about 225-275 DEG F for about 3-24 hours. More preferably, the added stage extends at about 250 DEG F for about 6 hours or more.
IPC 1-7
IPC 8 full level
C22F 1/053 (2006.01)
CPC (source: EP US)
C22F 1/053 (2013.01 - EP US)
Citation (search report)
See references of WO 02075010A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02075010 A2 20020926; WO 02075010 A3 20030313; AU 2002245705 A1 20021003; BR 0208271 A 20040309; CA 2441168 A1 20020926; CN 1531603 A 20040922; EP 1373591 A2 20040102; US 2003051784 A1 20030320
DOCDB simple family (application)
US 0208538 W 20020320; AU 2002245705 A 20020320; BR 0208271 A 20020320; CA 2441168 A 20020320; CN 02806935 A 20020320; EP 02713880 A 20020320; US 10327302 A 20020320