EP 2811043 B1 20160727 - HIGH-STRENGTH ALUMINUM ALLOY EXTRUDATE WITH EXCELLENT CORROSION RESISTANCE, DUCTILITY, AND HARDENABILITY AND PROCESS FOR PRODUCING SAME
Title (en)
HIGH-STRENGTH ALUMINUM ALLOY EXTRUDATE WITH EXCELLENT CORROSION RESISTANCE, DUCTILITY, AND HARDENABILITY AND PROCESS FOR PRODUCING SAME
Title (de)
HOCHFESTES ALUMINIUMLEGIERUNGSEXTRUDAT MIT HERVORRAGENDER KORROSIONSBESTÄNDIGKEIT, DUKTILITÄT UND HÄRTBARKEIT SOWIE VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
EXTRUDAT D'ALLIAGE D'ALUMINIUM À HAUTE RÉSISTANCE PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA CORROSION, DUCTILITÉ, ET UNE TREMPABILITÉ ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2012018486 A 20120131
- JP 2013052002 W 20130130
Abstract (en)
[origin: US2014166165A1] An Al—Mg—Si-based high-strength aluminum alloy extruded shape exhibits excellent corrosion resistance and ductility, and exhibits excellent hardenability during extrusion (i.e., ensures high productivity). A method for producing the same is also disclosed. The high-strength aluminum alloy extruded shape includes 0.65 to 0.90 mass % of Mg, 0.60 to 0.90 mass % of Si, 0.20 to 0.40 mass % of Cu, 0.20 to 0.40 mass % of Fe, 0.10 to 0.20 mass % of Mn, and 0.005 to 0.1 mass % of Ti, with the balance being Al and unavoidable impurities, the aluminum alloy extruded shape having a stoichiometric Mg2Si content of 1.0 to 1.3 mass %, an excess Si content relative to stoichiometric Mg2Si of 0.10 to 0.30 mass %, and a total content of Fe and Mn of 0.35 mass % or more.
IPC 8 full level
C22C 21/06 (2006.01); B21C 29/00 (2006.01); C22C 21/02 (2006.01); C22F 1/00 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP US)
C22C 21/02 (2013.01 - EP US); C22C 21/04 (2013.01 - US); C22C 21/08 (2013.01 - EP US); C22F 1/00 (2013.01 - EP US); C22F 1/043 (2013.01 - EP US); C22F 1/047 (2013.01 - EP US); C22F 1/05 (2013.01 - EP US)
Citation (opposition)
Opponent : Rio Tinto Alcan International Limitée
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- JP 2003155535 A 20030530 - NIPPON LIGHT METAL CO
- EP 0222479 A1 19870520 - ALCAN INT LTD [CA]
- JP 2001316750 A 20011116 - KOBE STEEL LTD
- JP 2001207233 A 20010731 - KOBE STEEL LTD
- US 6440359 B1 20020827 - PARSON NICHOLAS CHARLES [GB], et al
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- MALCOLM J. COUPER: "Selecting the Optimum Mg and Si Content for 6xxx Series Extrusion Alloys", PROCEEDINGS OF THE 12TH INTERNATIONAL CONFERENCE ON ALUMINIUM ALLOYS, 5 September 2010 (2010-09-05), Yokohama, Japan, pages 149 - 154, XP055375633
- KATHARINA STROBEL ET AL.: "Relating Quench Sensitivity to Microstructure in 6000 Series Aluminium Alloys", MATERIALS TRANSACTIONS, vol. 52, no. 5, 2011, pages 914 - 919, XP055441583
- NICK PARSON ET AL.: "Control of Grain Structure in Al-Mg-Si Extrusions", PROCEEDINGS OF THE EIGHTH INTERNATIONAL ALUMINUM EXTRUSION TECHNOLOGY SEMINAR EXPLORING INNOVATIONS, 18 May 2004 (2004-05-18), Orlando, Florida, pages 11 - 22, XP055441590
- "Basic Metallurgy: 6000 Series Extrusion Alloys", THE METALLURGY OF HOMOGENIZATION B. RINDERER, 27 July 2011 (2011-07-27), Melbourne, Australia, XP055375637
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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
DOCDB simple family (publication)
US 2014166165 A1 20140619; CN 103781927 A 20140507; CN 103781927 B 20170208; EP 2811043 A1 20141210; EP 2811043 A4 20151118; EP 2811043 B1 20160727; JP 6000988 B2 20161005; JP WO2013115227 A1 20150511; WO 2013115227 A1 20130808
DOCDB simple family (application)
US 201314232720 A 20130130; CN 201380002929 A 20130130; EP 13742883 A 20130130; JP 2013052002 W 20130130; JP 2013556434 A 20130130