METHOD OF PRODUCING A STEEL COMPONENT PROVIDED WITH A METALLIC COATING GIVING PROTECTION AGAINST CORROSION, AND A STEEL COMPONENT

摘要

The invention relates to a method, by which a component that is provided with a well-adhering metal coating protecting against corrosion can be produced. To this end, a flat steel product produced from a steel material, which contains 0.3 - 3 wt.% manganese and has a yield point of 150 - 1100 MPa and tensile strength of 300 - 1200 MPa, is covered with a corrosion protection coating that comprises a ZnNi alloy coating, which is electronically deposited on the flat steel product and consists of a single phase made of ?-ZnNi phase, said alloy coating comprising 7-15 wt.% nickel, in addition to zinc and unavoidable impurities. A billet is obtained from the flat steel product, which is directly heated to at least 800°C and is then formed into the steel component or first formed into the steel component and then heated to at least 800°C. The steel component obtained is subsequently heat-treated by cooling it sufficiently quickly from a sufficiently high temperature.