EP 2811041 A4 20150902 - ALUMINUM ALLOY HAVING EXCELLENT WEAR RESISTANCE, EXTRUDABILITY, AND FORGING WORKABILITY
Title (en)
ALUMINUM ALLOY HAVING EXCELLENT WEAR RESISTANCE, EXTRUDABILITY, AND FORGING WORKABILITY
Title (de)
ALUMINIUMLEGIERUNG MIT HERVORRAGENDER ABRIEBFESTIGKEIT, EXTRUDIERBARKEIT UND SCHMIEDEBEARBEITBARKEIT
Title (fr)
ALLIAGE D'ALUMINIUM PRÉSENTANT UNE RÉSISTANCE À L'USURE, UNE APTITUDE À L'EXTRUSION ET UNE APTITUDE AU FAÇONNAGE PAR FORGEAGE D'EXCELLENTE QUALITÉ
Publication
Application
Priority
JP 2012052215 W 20120201
Abstract (en)
[origin: EP2811041A1] Productivity of an aluminum alloy such as extrusion property and forging property are improved, while satisfying the required properties, by optimizing the amount of elements contained in the aluminum alloy. The aluminum alloy contains 5.5 to 7.0% of Si, 1.0 to 2.0% of Cu, 0.4 to 0.8% of Mg, 0.05 to 0.15% of Cr, 0.05 to 0.25% of Ni, and when further desired, 0.01 to 0.05% of Sr. The rest of the aluminum alloy is Al and unavoidable impurities. When Sc is defined as the size of the eutectic Si in the central portion of the cross section which is vertical with respect to the longitudinal direction of the aluminum alloy extruded, and Ss is defined as the size of the eutectic Si at the surface side of the cross section of the extrusion material, the aluminum alloy satisfies the equation of "Sc-Ss ‰¤ 15 µm 2 ", and the number of the particles having the size of 20µm 2 or smaller is 1000 to 3000 /mm 2 .
IPC 8 full level
C22C 21/02 (2006.01); C22F 1/043 (2006.01)
CPC (source: EP)
B21C 23/002 (2013.01); B21J 1/003 (2013.01); C22C 21/02 (2013.01); C22C 21/04 (2013.01); C22F 1/043 (2013.01)
Citation (search report)
- [A] US 2003026726 A1 20030206 - SATO SHINICHI [JP], et al
- [A] EP 1715084 A1 20061025 - SHOWA DENKO KK [JP]
- [A] EP 1516072 A2 20050323 - PECHINEY ALUMINIUM [FR]
- [A] EP 1479785 A1 20041124 - AISIN KEIKINZOKU CO LTD [JP]
- See references of WO 2013114582A1
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)
EP 2811041 A1 20141210; EP 2811041 A4 20150902; EP 2811041 B1 20160706; CN 104160049 A 20141119; CN 104160049 B 20160914; WO 2013114582 A1 20130808
DOCDB simple family (application)
EP 12867174 A 20120201; CN 201280068314 A 20120201; JP 2012052215 W 20120201