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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.:

US 11795535 B1

PDFFull Text
Date of Patent:
Oct. 24, 2023

Filed:

Dec. 27, 2019

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

Applicant:

Salzgitter Flachstahl Gmbh, Salzgitter, DE;

Inventors:

Marc Debeaux, Hildesheim, DE;

Friedrich Luther, Gehrden, DE;

Thomas Koll, Braunschweig, DE;

Assignee:

Salzgitter Flachstahl GmbH, Salzgitter, DE;

Attorney:

Gardner, Linn, Burkhart & Ondersma LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C23C 2/12 (2006.01); C23C 2/28 (2006.01); C23C 2/20 (2006.01); C21D 1/25 (2006.01); B32B 15/01 (2006.01); C22C 21/02 (2006.01); C21D 1/26 (2006.01); C25D 11/04 (2006.01); C23C 28/00 (2006.01); C23C 2/40 (2006.01); C23F 1/36 (2006.01); C23C 2/26 (2006.01); C21D 1/00 (2006.01); C25F 3/04 (2006.01); C25D 11/02 (2006.01); C23C 30/00 (2006.01); C21D 8/02 (2006.01); C21D 8/00 (2006.01); C22C 21/04 (2006.01); C23C 28/02 (2006.01); C21D 9/46 (2006.01); C21D 9/48 (2006.01); C21D 1/34 (2006.01); C21D 8/04 (2006.01); C23F 3/03 (2006.01); B32B 15/04 (2006.01); C23F 3/02 (2006.01); B32B 3/00 (2006.01); C25D 11/06 (2006.01); B32B 15/18 (2006.01); C25D 11/24 (2006.01); C25D 11/08 (2006.01); C25D 11/10 (2006.01);
U.S. Cl.
CPC ...
C23C 2/12 (2013.01); B32B 3/00 (2013.01); B32B 15/012 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C21D 1/00 (2013.01); C21D 1/25 (2013.01); C21D 1/26 (2013.01); C21D 1/34 (2013.01); C21D 8/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/0278 (2013.01); C21D 8/0405 (2013.01); C21D 9/46 (2013.01); C21D 9/48 (2013.01); C22C 21/02 (2013.01); C22C 21/04 (2013.01); C23C 2/20 (2013.01); C23C 2/26 (2013.01); C23C 2/261 (2022.08); C23C 2/265 (2013.01); C23C 2/28 (2013.01); C23C 2/29 (2022.08); C23C 2/40 (2013.01); C23C 28/021 (2013.01); C23C 28/321 (2013.01); C23C 28/345 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C23F 1/36 (2013.01); C23F 3/02 (2013.01); C23F 3/03 (2013.01); C25D 11/02 (2013.01); C25D 11/026 (2013.01); C25D 11/04 (2013.01); C25D 11/06 (2013.01); C25D 11/24 (2013.01); C25F 3/04 (2013.01); C21D 2211/001 (2013.01); C21D 2211/008 (2013.01); C25D 11/08 (2013.01); C25D 11/10 (2013.01); Y10T 428/1259 (2015.01); Y10T 428/12458 (2015.01); Y10T 428/12556 (2015.01); Y10T 428/12569 (2015.01); Y10T 428/12583 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12736 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12764 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/26 (2015.01); Y10T 428/265 (2015.01); Y10T 428/27 (2015.01); Y10T 428/273 (2015.01);
Abstract

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.

Find Patent Forward Citations

Debeaux, Marc. (2023). Aluminum-based coating for flat steel products for press mold hardening components, and method for producing same (U.S. Patent No. 11795535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11795535

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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