EP 3728693 B1 20230719 - METHOD FOR THE CORROSION PROTECTION AND CLEANING PRETREATMENT OF METALLIC COMPONENTS
Title (en)
METHOD FOR THE CORROSION PROTECTION AND CLEANING PRETREATMENT OF METALLIC COMPONENTS
Title (de)
VERFAHREN ZUR KORROSIONSSCHÜTZENDEN UND REINIGENDEN VORBEHANDLUNG VON METALLISCHEN BAUTEILEN
Title (fr)
PROCÉDÉ DE PRÉTRAITEMENT DE NETTOYAGE ET DE PROTECTION ANTICORROSION DE COMPOSANTS MÉTALLIQUES
Publication
Application
Priority
- EP 17208833 A 20171220
- EP 2018083761 W 20181206
Abstract (en)
[origin: CA3085652A1] The invention relates to a multiple-step method for the corrosion-protective pretreatment of components, said pretreatment being at least partially produced from a metal material predominantly consisting of at least one of the elements iron zinc and/or aluminium, according to which the components are first brought into contact with an acid aqueous composition (A) containing water-soluble compounds of the elements Zr and/or Ti and then with an acid aqueous composition (B) containing phosphate ions and an accelerator. The method is particularly suitable for the pretreatment before an electrocoating.
IPC 8 full level
C23C 22/08 (2006.01); C23C 22/34 (2006.01); C23C 22/73 (2006.01)
CPC (source: EP KR US)
C23C 22/08 (2013.01 - EP KR); C23C 22/34 (2013.01 - EP KR); C23C 22/73 (2013.01 - EP); C23F 11/04 (2013.01 - US); C23C 22/76 (2013.01 - KR); C23C 22/80 (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 3502311 A1 20190626; CA 3085652 A1 20190627; CN 111527238 A 20200811; CN 111527238 B 20230808; EP 3728693 A1 20201028; EP 3728693 B1 20230719; ES 2958039 T3 20240131; KR 20200096980 A 20200814; US 11408078 B2 20220809; US 2020308711 A1 20201001; WO 2019121036 A1 20190627
DOCDB simple family (application)
EP 17208833 A 20171220; CA 3085652 A 20181206; CN 201880081921 A 20181206; EP 18812172 A 20181206; EP 2018083761 W 20181206; ES 18812172 T 20181206; KR 20207020602 A 20181206; US 202016902352 A 20200616