EP 2652163 B1 20180919 - 7XXX ALLOY THICK PRODUCTS AND THEIR PROCESS OF MANUFACTURE
Title (en)
7XXX ALLOY THICK PRODUCTS AND THEIR PROCESS OF MANUFACTURE
Title (de)
DICKE PRODUKTE AUS 7XXX-LEGIERUNGEN UND DEREN HERSTELLUNGSVERFAHREN
Title (fr)
PRODUITS EPAIS EN ALLIAGE 7XXX ET PROCEDE DE FABRICATION
Publication
Application
Priority
- FR 1004865 A 20101214
- FR 2011000637 W 20111206
Abstract (en)
[origin: WO2012080592A1] The present invention relates to an aluminium alloy for the manufacture of thick blocks comprising (in % by weight); Zn: 5.3 - 5.9%, Mg: 0.8 - 1.8%, Cu < 0.2%, Zr: 0.05 - 0.12%, Ti < 0.15%, Mn < 0.1%, Cr < 0.1%, Si < 0.15%, Fe < 0.20%, impurities having an individual content < 0.05% each and < 0.15% in total, the remainder being aluminium. The alloy may be used in a process comprising the steps of: (a) casting a thick block made of alloy according to the invention, (b) solution heat treating said cast block at a temperature from 500 to 560°C for 10 min to 20 hours, (c) cooling said solution heat treated block to a temperature below 100°C, (d) tempering said solution heat treated and cooled block, by heating at 120 to 170°C for 4 to 48 hours. In this process, said block does not undergo, between the casting and the tempering, a step of significant deformation by working. The alloy and the process according to the invention are of use in particular for the manufacture of a mould for injection-moulding plastics.
IPC 8 full level
C22C 21/10 (2006.01); C22C 21/00 (2006.01); C22F 1/053 (2006.01)
CPC (source: EP KR US)
C22C 21/00 (2013.01 - EP KR US); C22C 21/10 (2013.01 - EP KR US); C22F 1/053 (2013.01 - EP KR US)
Citation (examination)
WO 2008003506 A2 20080110 - ALERIS ALUMINIUM KOBLENZ GMBH [DE], et al
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)
FR 2968675 A1 20120615; FR 2968675 B1 20130329; CA 2820768 A1 20120621; CL 2013001716 A1 20131206; EP 2652163 A1 20131023; EP 2652163 B1 20180919; JP 2014505786 A 20140306; JP 6118728 B2 20170419; KR 101900973 B1 20180920; KR 20140012628 A 20140203; MX 2013006848 A 20131101; MX 354911 B 20180326; PL 2652163 T3 20190531; US 11306379 B2 20220419; US 2013284322 A1 20131031; US 2022389558 A1 20221208; WO 2012080592 A1 20120621
DOCDB simple family (application)
FR 1004865 A 20101214; CA 2820768 A 20111206; CL 2013001716 A 20130613; EP 11808242 A 20111206; FR 2011000637 W 20111206; JP 2013543846 A 20111206; KR 20137017601 A 20111206; MX 2013006848 A 20111206; PL 11808242 T 20111206; US 201113994097 A 20111206; US 202217678591 A 20220223