Loading patent…
AssigneeThyssenKrupp Steel AG
InventorsKrasimir Nikolov, Nicole Weiher, Bernd Schuhmacher
Estimating the term…
A flat steel product provided with a coating system, which in the coated state possesses an optimized combination of corrosion resistance and welding capacity, includes a base layer formed from a steel and a corrosion protection system applied onto the base layer. The corrosion protection system comprises a metallic coating less than 3.5 μm thick, formed from a first metallic layer applied onto the base layer and a second metallic layer applied onto the first metallic layer, wherein the second metallic layer has formed a metallic alloy with the first metallic layer. The corrosion protection system also comprises a plasma polymer layer applied onto the metallic coating.
Flat steel product with a base layer formed from a steel and a corrosion protection system applied onto the base layer, the corrosion protection system comprising a metallic coating less than 3.5 μm thick, formed from a first metallic layer applied onto the base layer and a second metallic layer applied onto the first metallic layer, wherein the second metallic layer has formed a metallic alloy with the first metallic layer, and comprises a plasma polymer layer applied onto the metallic coating.
Method for the manufacture of a flat steel product coated with a corrosion protection system, in which a first metallic layer is applied onto a steel substrate forming the base layer of the flat steel product and a second metallic layer is applied onto the first metallic layer, which, as a consequence of heat treatment, becomes an alloy with the first metallic layer, wherein the total thickness of a metallic coating formed from the first and second metallic layers amounts to less than 3.5 μm, in which a plasma polymer layer is applied onto the metallic coating formed from the first and second metallic layers.
Dependencies are inferred from the claim text.