EP 3456864 B1 20191113 - TWO STAGE PRE-TREATMENT OF ALUMINIUM, IN PARTICULAR ALUMINIUM CASTING ALLOYS, COMPRISING A PICKLE AND A CONVERSION TREATMENT
Title (en)
TWO STAGE PRE-TREATMENT OF ALUMINIUM, IN PARTICULAR ALUMINIUM CASTING ALLOYS, COMPRISING A PICKLE AND A CONVERSION TREATMENT
Title (de)
ZWEISTUFEN-VORBEHANDLUNG VON ALUMINIUM, INSBESONDERE ALUMINIUMGUSSLEGIERUNGEN, UMFASSEND BEIZE UND KONVERSIONSBEHANDLUNG
Title (fr)
PRÉTRAITEMENT D'ALUMINIUM, EN PARTICULIER D'ALLIAGES D'ALUMINIUM, À DEUX ÉTAPES COMPRENANT LE BAIN DE DÉCAPAGE ET LE TRAITEMENT DE CONVERSION
Publication
Application
Priority
EP 17191578 A 20170918
Abstract (en)
[origin: WO2019052701A1] The present invention relates to a method for anti-corrosion treatment of components produced from aluminum, in particular casting parts such as vehicle rims, comprising a pre-treatment stage and subsequent painting. The pre-treatment stage in turn includes a pickle on the basis of sulfuric acid aqueous solutions containing water-soluble compounds of the element Ti and at least one -hydroxycarboxylic acid which is carried out upstream of an acidic conversion treatment on the basis of an acidic aqueous solution containing water-soluble compounds of the elements Zr and/or Ti.
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/80 (2006.01); C23G 1/12 (2006.01)
CPC (source: EP KR US)
C23C 22/34 (2013.01 - EP KR US); C23C 22/80 (2013.01 - EP); C23C 22/82 (2013.01 - US); C23G 1/125 (2013.01 - EP KR US); C23G 1/22 (2013.01 - KR); C23C 24/00 (2013.01 - KR)
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 3456864 A1 20190320; EP 3456864 B1 20191113; CN 111094624 A 20200501; CN 111094624 B 20230124; ES 2767852 T3 20200618; HU E048447 T2 20200828; KR 102538202 B1 20230530; KR 20200054974 A 20200520; MX 2020001673 A 20200713; PL 3456864 T3 20200518; US 11499237 B2 20221115; US 2020208273 A1 20200702; WO 2019052701 A1 20190321
DOCDB simple family (application)
EP 17191578 A 20170918; CN 201880060188 A 20180626; EP 2018067027 W 20180626; ES 17191578 T 20170918; HU E17191578 A 20170918; KR 20207007534 A 20180626; MX 2020001673 A 20180626; PL 17191578 T 20170918; US 202016817044 A 20200312