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.

Date of Patent:
Jul. 24, 2018

Filed:

Jul. 15, 2014
Applicant:

Thyssenkrupp Steel Europe Ag, Duisburg, DE;

Inventors:

Maria Köyer, Dortmund, DE;

Sascha Sikora, Lünen, DE;

Janko Banik, Altena, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C25D 3/22 (2006.01); C21D 5/02 (2006.01); C25D 5/48 (2006.01); C25D 5/50 (2006.01); C21D 1/18 (2006.01); C21D 1/42 (2006.01); C21D 8/00 (2006.01); C21D 1/06 (2006.01); C21D 1/34 (2006.01); C21D 1/74 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/28 (2006.01); C25D 7/00 (2006.01); C25D 5/36 (2006.01); C25D 7/06 (2006.01); C21D 1/673 (2006.01); C25D 5/02 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 1/06 (2013.01); C21D 1/18 (2013.01); C21D 1/34 (2013.01); C21D 1/42 (2013.01); C21D 1/74 (2013.01); C21D 6/002 (2013.01); C21D 6/008 (2013.01); C21D 8/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/0221 (2013.01); C21D 8/0247 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/28 (2013.01); C25D 3/22 (2013.01); C25D 5/028 (2013.01); C25D 5/48 (2013.01); C25D 5/50 (2013.01); C25D 7/00 (2013.01); C21D 1/673 (2013.01); C25D 5/36 (2013.01); C25D 7/0621 (2013.01); Y02P 10/253 (2015.11);
Abstract

Methods for producing steel components with well-adhering metallic coatings that provide protection from corrosion offer flexibility in processing qualities. In one example, a flat steel product comprising a steel material that is hardenable by quenching in a hot forming operation and that has a yield point of 150-1100 MPa and a tensile strength of 300-1200 MPa may be coated electrolytically with a thin zinc layer. From the flat steel product, a blank may then be obtained that is heated directly to at least 800° C. and then formed into the steel component. Alternatively, the blank may initially be formed into the steel component and then heated to at least 800° C. Either way, the steel component may then be hardened by sufficiently rapid cooling from a sufficiently high temperature.


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