Aluminum-based coating for flat steel products for press mold hardening components, and method for producing same

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United States of America Patent

PATENT NO 11795535
SERIAL NO

17420344

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Abstract

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An aluminum-based coating of a flat steel product is applied in a hot-dipping method and comprises a mass percentage of silicon within a given range. The coating for a flat steel product, in particular for press mold hardening components, offers a shortened required minimum oven dwell time and a sufficiently large processing window when heating in an oven. This is achieved in that the surface of the coating has a degree of absorption for thermal radiation ranging between 0.35 and 0.95 prior to an annealing treatment, where the degree of absorption relates to an oven temperature ranging from 880 to 950° C. during the austenitizing annealing treatment. The invention additionally relates to an improved method for producing a flat steel product with an aluminum-based coating, to an inexpensive method for producing press-hardened components from such flat steel products, and to a press-hardened component made of such flat steel products.

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Patent Owner(s)

Patent OwnerAddress
SALZGITTER FLACHSTAHL GMBHEISENHÜTTENSTRASSE 99 SALZGITTER 38239

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Debeaux, Marc Hildesheim, DE 11 17
Koll, Thomas Braunschweig, DE 3 3
Luther, Friedrich Gehrden, DE 15 57

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