EP 2992127 B1 20200708 - METHOD FOR SURFACE TREATMENT OF A METALLIC SUBSTRATE
Title (en)
METHOD FOR SURFACE TREATMENT OF A METALLIC SUBSTRATE
Title (de)
VERFAHREN ZUR OBERFLÄCHENBEHANDLUNG EINES METALLISCHEN SUBSTRATS
Title (fr)
PROCÉDÉ DE TRAITEMENT DE SURFACE D'UN SUBSTRAT MÉTALLIQUE
Publication
Application
Priority
- AT 502942013 A 20130429
- AT 2014050110 W 20140429
Abstract (en)
[origin: WO2014176621A1] The invention relates to a method for surface-treating a metallic substrate, in particular steel plate, using a protective coating on a Zn basis, according to which a chloride-containing solution is applied to the protective coating and as a result an anti-corrosion layer comprising hydrozincite and simonkolleite is formed at least in parts. To increase the corrosion resistance of the protective coating and to improve the process sequence and reproducibility of the method, the invention proposes reacting the protectively coated substrate with the solution which, using an acid, is adjusted to a pH of 4 to 6 and contains 1.8 to 18.5% by weight chloride, so as to increase the proportion of simonkolleite in relation to the proportion of hydrozincite in the anti-corrosion layer.
IPC 8 full level
C23C 22/53 (2006.01); C23C 2/06 (2006.01); C23C 2/26 (2006.01); C23C 22/00 (2006.01); C23C 22/05 (2006.01); C23C 22/06 (2006.01); C25D 11/34 (2006.01)
CPC (source: AT EP US)
C23C 2/06 (2013.01 - AT US); C23C 2/26 (2013.01 - AT EP US); C23C 22/00 (2013.01 - US); C23C 22/05 (2013.01 - US); C23C 22/06 (2013.01 - US); C23C 22/53 (2013.01 - AT EP US); C25D 11/34 (2013.01 - 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)
WO 2014176621 A1 20141106; AT 514229 A1 20141115; AT 514229 B1 20150215; CN 105378153 A 20160302; CN 105378153 B 20181012; EP 2992127 A1 20160309; EP 2992127 B1 20200708; ES 2822378 T3 20210430; JP 2016519220 A 20160630; JP 6865580 B2 20210428; PL 2992127 T3 20210208; US 10011896 B2 20180703; US 2016083828 A1 20160324
DOCDB simple family (application)
AT 2014050110 W 20140429; AT 502942013 A 20130429; CN 201480030642 A 20140429; EP 14728808 A 20140429; ES 14728808 T 20140429; JP 2016510898 A 20140429; PL 14728808 T 20140429; US 201414787942 A 20140429