EP 3922743 A1 20211215 - METHOD OF MANUFACTURING AN ALUMINIUM ALLOY PLATE FOR VACUUM CHAMBER ELEMENTS
Title (en)
METHOD OF MANUFACTURING AN ALUMINIUM ALLOY PLATE FOR VACUUM CHAMBER ELEMENTS
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER ALUMINIUMLEGIERUNGSPLATTE FÜR VAKUUMKAMMERELEMENTE
Title (fr)
PROCÉDÉ DE FABRICATION DE PLAQUE D'ALUMINIUM POUR CHAMBRES À VIDE
Publication
Application
Priority
EP 20179258 A 20200610
Abstract (en)
The invention relates to a method of manufacturing an aluminium alloy plate for vacuum chamber elements, the method comprising the steps of: (a) providing a rolling feedstock material of an Al-Mg-Si aluminium alloy having a composition comprising of, in wt.%, Mg 0.80%-1.05%, Si 0.70%-1.0%, Mn 0.70%-0.90%, Fe up to 0.20%, Zn up to 0.08%, Cu up to 0.05%, Cr up to 0.03%, Ti up to 0.06%, unavoidable impurities and balance aluminium; (b)homogenizing of the rolling feedstock at a temperature in a range of 550-595°C; (c) hot-rolling of the homogenized rolling feedstock in one or more rolling steps to a hot-rolled plate having a thickness of at least 10 mm; (d) solution heat-treatment (SHT") of the hot rolled plate at a temperature in a range of 540-590°C; (e) rapid cooling the SHT plate; (f) stretching of the cooled SHT plate to obtain a permanent elongation from 1-5%; (g) artificial ageing of the stretched plate.
IPC 8 full level
C22C 21/02 (2006.01); B01J 3/00 (2006.01); C22C 21/06 (2006.01); C22C 21/08 (2006.01); C22F 1/00 (2006.01); C22F 1/05 (2006.01); C25D 11/10 (2006.01)
CPC (source: EP KR US)
C22C 21/02 (2013.01 - EP US); C22C 21/06 (2013.01 - EP); C22C 21/08 (2013.01 - EP KR US); C22F 1/002 (2013.01 - EP US); C22F 1/047 (2013.01 - KR); C22F 1/05 (2013.01 - EP US); C25D 11/08 (2013.01 - KR); C25D 11/16 (2013.01 - US); C25D 11/08 (2013.01 - EP)
Citation (applicant)
US 2012325381 A1 20121227 - GASQUERES CEDRIC [FR], et al
Citation (search report)
- [Y] US 2015255253 A1 20150910 - VAN KAPPEL JOOST MICHEL [CH], et al
- [Y] US 2009050485 A1 20090226 - WADA KOJI [JP], et al
- [A] US 2017356073 A1 20171214 - SAWA YUYA [JP], et al
- [A] FR 3063740 A1 20180914 - CONSTELLIUM ISSOIRE [FR]
- [AD] US 2012325381 A1 20121227 - GASQUERES CEDRIC [FR], et al
- [A] EP 2003219 A2 20081217 - KOBE STEEL LTD [JP]
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
DOCDB simple family (publication)
EP 3922743 A1 20211215; EP 3922743 B1 20240724; CA 3181196 A1 20211216; CN 115698355 A 20230203; EP 4165223 A1 20230419; JP 2023524523 A 20230612; JP 7518198 B2 20240717; KR 20220156648 A 20221125; US 2023220522 A1 20230713; WO 2021250545 A1 20211216
DOCDB simple family (application)
EP 20179258 A 20200610; CA 3181196 A 20210607; CN 202180040721 A 20210607; EP 21730296 A 20210607; IB 2021054983 W 20210607; JP 2022566688 A 20210607; KR 20227038536 A 20210607; US 202117999988 A 20210607