EP 2499272 B1 20170816 - PROCESS FOR PRODUCTION OF MAGNESIUM CONTAINING ALUMINIUM STRIP OR WEB MATERIAL WITH IMPROVED ADHESION
Title (en)
PROCESS FOR PRODUCTION OF MAGNESIUM CONTAINING ALUMINIUM STRIP OR WEB MATERIAL WITH IMPROVED ADHESION
Title (de)
VERFAHREN ZUR HERSTELLUNG VON MAGNESIUMHALTIGEM ALUMINIUMSTREIFEN ODER BAHNENMATERIAL MIT VERBESSERTER HAFTUNG
Title (fr)
PROCÉDÉ POUR LA PRODUCTION DE MATIÈRE EN BANDE OU FEUILLE CONTINUE D'ALUMINIUM CONTENANT DU MAGNÉSIUM PRÉSENTANT UNE ADHÉRENCE AMÉLIORÉE
Publication
Application
Priority
- NO 20093346 A 20091113
- NO 2010000410 W 20101111
Abstract (en)
[origin: WO2011059341A1] Process for the production of magnesium containing aluminium alloys, in particular magnesium containing rolled aluminium strip or sheet material, The process is characterized by the following steps: E. rolling to final thickness of the aluminium web F. levelling of the aluminium web G. electrochemical degreasing of the aluminium web H. soft annealing of the aluminium web. The electrochemical degreasing is done by alternating current (AC) processing of the aluminium sheet material in hot sulphuric acid resulting in a thin aluminium oxide layer on the surface of between 10 - 20nm. The hereby degreased material give excellent adhesion since there is no magnesium oxide on the surface.
IPC 8 full level
C22F 1/04 (2006.01); C25D 11/04 (2006.01); C25F 1/00 (2006.01)
CPC (source: EP)
C22C 21/00 (2013.01); C22F 1/047 (2013.01); C25D 11/024 (2013.01); C25D 11/04 (2013.01); C25D 11/08 (2013.01); C25F 1/04 (2013.01)
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)
WO 2011059341 A1 20110519; EP 2499272 A1 20120919; EP 2499272 A4 20160323; EP 2499272 B1 20170816; NO 2499272 T3 20180113
DOCDB simple family (application)
NO 2010000410 W 20101111; EP 10830248 A 20101111; NO 10830248 A 20101111