EP 3612663 A1 20200226 - METHOD FOR ZINC PHOSPHATING METAL COMPONENTS IN SERIES SO AS TO FORM LAYERS
Title (en)
METHOD FOR ZINC PHOSPHATING METAL COMPONENTS IN SERIES SO AS TO FORM LAYERS
Title (de)
VERFAHREN ZUR SCHICHTBILDENDEN ZINKPHOSPHATIERUNG VON METALLISCHEN BAUTEILEN IN SERIE
Title (fr)
PROCÉDÉ DE PHOSPHATATION AU ZINC FILMOGÈNE D'ÉLÉMENTS MÉTALLIQUES EN SÉRIE
Publication
Application
Priority
- EP 17167478 A 20170421
- EP 2018055871 W 20180309
Abstract (en)
[origin: WO2018192709A1] The invention relates to a method for zinc phosphating components comprising surfaces made of zinc in order to suppress the formation of insoluble phosphation constituents removably adhered to the zinc surfaces and thus further improve the adhesion of dip-paint coatings applied later. In the method, a process is used of activating the zinc surfaces by means of dispersions containing particulate hopeite, phosphophyllite, scholzite, and/or hureaulite, wherein the proportion of particulate phosphates in the activation process must be adapted to the quantity of free fluoride and dissolved silicon in the zinc phosphation.
IPC 8 full level
C23C 22/36 (2006.01); C23C 22/73 (2006.01); C23C 22/78 (2006.01)
CPC (source: EP US)
C23C 22/362 (2013.01 - EP); C23C 22/365 (2013.01 - US); C23C 22/73 (2013.01 - EP); C23C 22/78 (2013.01 - EP); C23F 11/188 (2013.01 - 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3392376 A1 20181024; CN 110582592 A 20191217; CN 110582592 B 20230124; EP 3612663 A1 20200226; EP 3612663 B1 20240306; JP 2020517823 A 20200618; JP 7287901 B2 20230606; US 11486044 B2 20221101; US 2020032403 A1 20200130; WO 2018192709 A1 20181025
DOCDB simple family (application)
EP 17167478 A 20170421; CN 201880026262 A 20180309; EP 18716514 A 20180309; EP 2018055871 W 20180309; JP 2019556846 A 20180309; US 201916593600 A 20191004