(19)

(11)

EP 3 146 091 A1

(12)

(43) Date of publication: 29.03.2017 Bulletin 2017/13 (21) Application number: 15726901.0 (22) Date of filing: 21.05.2015

(51) International Patent Classification (IPC):  C25D 5/50(2006.01) C25D 5/14(2006.01) C25D 3/06(2006.01) C25D 9/08(2006.01) C25D 9/10(2006.01) (86) International application number: PCT/EP2015/061333 (87) International publication number: WO 2015/177315 (26.11.2015 Gazette 2015/47)

(84) Designated Contracting States: 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 States: BA ME Designated Validation States: MA (30) Priority: 21.05.2014 EP 14169277 (71) Applicant: Tata Steel IJmuiden BV 1951 JZ Velsen-Noord (NL)	(72) Inventors: WIJENBERG, Jacques Hubert Olga Joseph NL-1970 CA IJmuiden (NL) WITTEBROOD, Adrianus Jacobus NL-1970 CA IJmuiden (NL) STEEGH, Michiel NL-1970 CA IJmuiden (NL) (74) Representative: Bodin, Andre  Tata Steel Nederland Technology B.V. Group Intellectual Property Services - 3G.37 P.O. Box 10000 1970 CA IJmuiden 1970 CA IJmuiden (NL)