EP 2978878 B1 20171108 - METHOD FOR TREATING IN CONTINUOUS THE SURFACE OF A LAMINATE MADE OF STAINLESS STEEL IN A SOLUTION BASED ON HYDROCHLORIC ACID
Title (en)
METHOD FOR TREATING IN CONTINUOUS THE SURFACE OF A LAMINATE MADE OF STAINLESS STEEL IN A SOLUTION BASED ON HYDROCHLORIC ACID
Title (de)
VERFAHREN ZUR KONTINUIERLICHEN BEHANDLUNG DER OBERFLÄCHE EINES LAMINATS AUS ROSTFREIEM STAHL IN EINER LÖSUNG AUF DER BASIS VON SALZSÄURE
Title (fr)
PROCÉDÉ DE TRAITEMENT CONTINU DE LA SURFACE D'UN STRATIFIÉ FAIT D'ACIER INOXYDABLE DANS UNE SOLUTION À BASE D'ACIDE CHLORHYDRIQUE
Publication
Application
Priority
- IT MI20130494 A 20130329
- IB 2014060224 W 20140327
Abstract (en)
[origin: WO2014155339A1] The present invention refers to a method for treating in continuous the surface of a laminate made of stainless steel that comprises at least the steps of: (a) subjecting said laminate to an electrolytic pickling treatment in alternating current, in an aqueous electrolytic solution comprising at least HCl and Fe3+ ions; (b) subjecting said electrolytically pickled laminate to a chemical pickling treatment in an aqueous chemical pickling solution comprising at least HCl and Fe3+ ions; (c) subjecting said chemically pickled laminate to a surface finishing and surface passivation treatment.
IPC 8 full level
CPC (source: EP)
C23C 22/34 (2013.01); C23G 1/00 (2013.01); C23G 1/08 (2013.01); C23G 1/36 (2013.01); C25F 1/06 (2013.01)
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 2014155339 A1 20141002; EP 2978878 A1 20160203; EP 2978878 B1 20171108; IT MI20130494 A1 20140930
DOCDB simple family (application)
IB 2014060224 W 20140327; EP 14722740 A 20140327; IT MI20130494 A 20130329