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EP 3 099 828 A1

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(43) Date of publication: 07.12.2016 Bulletin 2016/49 (21) Application number: 15710881.2 (22) Date of filing: 29.01.2015

(51) International Patent Classification (IPC):  C21D 9/04(2006.01) C21D 1/63(2006.01) F27D 15/02(2006.01) C21D 11/00(2006.01) C21D 1/64(2006.01) F27D 99/00(2010.01) (86) International application number: PCT/IB2015/050669 (87) International publication number: WO 2015/114550 (06.08.2015 Gazette 2015/31)

(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 (30) Priority: 29.01.2014 IT MI20140117 (71) Applicant: Danieli & C. Officine Meccaniche, S.p.A. 33042 Buttrio (IT)	(72) Inventor: ANDREATTA, Daniele I-31030 Borso Del Grappa (IT) (74) Representative: Celona, Antonio et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)