EP 3129527 B1 20190828 - METHOD FOR PASSIVATING A METAL SURFACE
Title (en)
METHOD FOR PASSIVATING A METAL SURFACE
Title (de)
VERFAHREN ZUR PASSIVIERUNG EINER METALLISCHEN OBERFLÄCHE
Title (fr)
PROCÉDÉ DE PASSIVATION D'UNE SURFACE MÉTALLIQUE
Publication
Application
Priority
- DE 102014005444 A 20140411
- EP 2015000622 W 20150321
Abstract (en)
[origin: WO2015154851A1] The invention relates to a method for passivating a metal surface (25) of a light-weight metal part (3), wherein a conversion layer (5) is applied to the surface (25) of the light-weight metal part (3) in a passivation step (P). According to the invention, a passivation step (P) is carried out wherein an aqueous passivation solution is used to create a calcium phosphate-containing conversion layer (5) on the metal surface (25) of the part (3), said conversion layer (5) comprising oxides and hydroxides from the material of the part (3) and from the passivation solution and containing amino acids.
IPC 8 full level
C23C 22/22 (2006.01); C23C 22/68 (2006.01); C25D 13/20 (2006.01); C25D 13/22 (2006.01)
CPC (source: CN EP US)
C23C 22/22 (2013.01 - CN EP US); C23C 22/68 (2013.01 - CN EP US); C25D 13/20 (2013.01 - CN EP US); C25D 13/22 (2013.01 - CN EP US)
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)
DE 102014005444 A1 20151015; CN 106164343 A 20161123; CN 106164343 B 20180911; EP 3129527 A1 20170215; EP 3129527 B1 20190828; ES 2747966 T3 20200312; US 10351959 B2 20190716; US 2017037517 A1 20170209; WO 2015154851 A1 20151015
DOCDB simple family (application)
DE 102014005444 A 20140411; CN 201580018917 A 20150321; EP 15712058 A 20150321; EP 2015000622 W 20150321; ES 15712058 T 20150321; US 201515303376 A 20150321