Method for producing a flat steel product provided with a metal protective layer by way of hot dip coating

US9096919B2 · kind B2 · utility

Assignee

• ThyssenKrupp Steel Europe AG · DE

Inventors

• Marc Blumenau · Hagen, DE
• Oliver Brehm · Krefeld, DE
• Michael Peters · Kleve, DE
• Rudolf Schoenenberg · Daphne, US
• Andreas Westerfeld · Willich, DE
• Martin Norden · Essen, DE

Key dates

• Filing date: Jul 5, 2012
• Grant date: Aug 4, 2015
• Expiry date: Aug 6, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D8/0236
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Optimal wetting and adhesion of the hot-dip coating by way of pre-oxidation in a DFF pre-heating furnace and humidification of the annealing atmosphere in a holding zone is achieved in a hot dip galvanised flat steel product.