EP 3538688 B1 20210526 - METHOD FOR ELECTROPLATING AN UNCOATED STEEL STRIP WITH A PLATING LAYER
Title (en)
METHOD FOR ELECTROPLATING AN UNCOATED STEEL STRIP WITH A PLATING LAYER
Title (de)
VERFAHREN ZUR GALVANISIERUNG EINER UNBESCHICHTETEN STAHLBAND MIT EINER GALVANISIERSCHICHT
Title (fr)
PROCÉDÉ POUR ELECTRODÉPOSER UNE BANDE D'ACIER NON REVÊTUES AVEC UNE COUCHE DE PLACAGE
Publication
Application
Priority
- EP 16198708 A 20161114
- EP 2017078582 W 20171108
Abstract (en)
[origin: WO2018087135A1] This invention relates to a method for electroplating an uncoated steel strip with a plating layer from a trivalent Cr-electrolyte, where the uncoated strip is subjected to a cleaning and pickling step prior to the plating process and then subsequently subjected to a plating process in a plating section comprising of a series of consecutive plating cells, wherein in a first stage of the plating process a current is applied to the strip entering the first plating cell which current is insufficient to deposit a plating layer from the trivalent Cr-electrolyte, but which is sufficient to provide cathodic protection of the strip in the electrolyte, and wherein in a second stage of the plating process a higher current is applied to the strip to deposit a plating layer comprising chromium metal, chromium carbide and chromium oxide from the trivalent Cr-electrolyte.
IPC 8 full level
C25D 3/06 (2006.01); C25D 5/36 (2006.01); C25D 7/06 (2006.01); C25D 17/00 (2006.01)
CPC (source: EP KR RU)
C25D 3/06 (2013.01 - EP KR RU); C25D 5/36 (2013.01 - EP KR); C25D 7/0628 (2013.01 - EP KR); C25D 7/0642 (2013.01 - EP KR); C25D 9/10 (2013.01 - KR); C25D 17/00 (2013.01 - EP)
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 2018087135 A1 20180517; BR 112019009702 A2 20190806; BR 112019009702 B1 20230328; CA 3043486 A1 20180517; CA 3043486 C 20210309; CN 110062819 A 20190726; CN 110062819 B 20210723; EP 3538688 A1 20190918; EP 3538688 B1 20210526; ES 2883716 T3 20211209; JP 2019533768 A 20191121; JP 7066707 B2 20220513; KR 102387496 B1 20220415; KR 20190077437 A 20190703; MX 2019005540 A 20191021; RS 62127 B1 20210831; RU 2019118305 A 20201214; RU 2019118305 A3 20201216; RU 2743357 C2 20210217; ZA 201903049 B 20200930
DOCDB simple family (application)
EP 2017078582 W 20171108; BR 112019009702 A 20171108; CA 3043486 A 20171108; CN 201780076997 A 20171108; EP 17797316 A 20171108; ES 17797316 T 20171108; JP 2019524932 A 20171108; KR 20197014843 A 20171108; MX 2019005540 A 20171108; RS P20210919 A 20171108; RU 2019118305 A 20171108; ZA 201903049 A 20190515