The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2022
Filed:
Jun. 19, 2018
Thyssenkrupp Steel Europe Ag, Duisburg, DE;
Thyssenkrupp Ag, Essen, DE;
Manuela Ruthenberg, Dortmund, DE;
Maria Koyer, Dortmund, DE;
thyssenkrupp AG, Essen, DE;
Abstract
The invention relates to a method for producing a steel component by forming of a flat steel product coated with an anticorrosion coating, and to a steel component produced from a steel substrate coated with anticorrosion coating. The steel component is produced by providing a flat steel product coated with an aluminum-based anticorrosion coating, heat-treating a blank formed from the coated flat steel product, in a furnace, where 0.0034° C./min≤Q≤0.021° C./min, with Q=(T*d)/(t*L), T=furnace temperature in ° C., d=blank thickness in mm, t=dwell time of the blank in the furnace in min, L=furnace length in m, and shaping the blank in a shaping tool. The steel component comprises a steel substrate and, at least on one side of the steel substrate, an anticorrosion coating which comprises at least one first and one second silicon-rich layer (SiSi) and also one first and one second low-silicon layer (A, B), where the quotient X formed from the thickness (dB) of the second low-silicon layer (B) in μm by the thickness (dA) of the first low-silicon layer (A) in μm is at least 0.4 and at most 1.1.