US 11,905,579 B1
Sheet steel having a deterministic surface structure
Fabian Junge, Düsseldorf (DE); Burak William Cetinkaya, Dortmund (DE); and Gregor Müller, Moers (DE)
Assigned to ThyssenKrupp Steel Europe AG, Duisburg (DE)
Appl. No. 17/763,308
Filed by ThyssenKrupp Steel Europe AG, Duisburg (DE)
PCT Filed Sep. 22, 2020, PCT No. PCT/SE2020/076422
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/063751, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 102019215051.9 (DE), filed on Sep. 30, 2019.
Int. Cl. C22C 18/04 (2006.01); C21D 7/04 (2006.01); B32B 15/04 (2006.01); C23C 30/00 (2006.01); B21B 27/00 (2006.01); B21B 1/22 (2006.01); B21B 27/02 (2006.01); B32B 15/01 (2006.01); C25D 3/22 (2006.01); C25D 7/06 (2006.01); B32B 15/18 (2006.01); B32B 3/26 (2006.01); B32B 15/08 (2006.01); B32B 3/30 (2006.01); B32B 3/02 (2006.01); C21D 9/48 (2006.01); C23C 2/06 (2006.01); C23C 2/36 (2006.01); C23C 2/40 (2006.01); C23C 2/02 (2006.01); C23C 28/02 (2006.01); C23C 2/04 (2006.01); C21D 9/46 (2006.01); C23C 2/26 (2006.01); C22C 18/00 (2006.01)
CPC C22C 18/04 (2013.01) [B21B 1/22 (2013.01); B21B 1/227 (2013.01); B21B 27/005 (2013.01); B21B 27/02 (2013.01); B21B 27/021 (2013.01); B32B 3/02 (2013.01); B32B 3/26 (2013.01); B32B 3/263 (2013.01); B32B 3/30 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/08 (2013.01); B32B 15/18 (2013.01); C21D 7/04 (2013.01); C21D 9/46 (2013.01); C21D 9/48 (2013.01); C22C 18/00 (2013.01); C23C 2/02 (2013.01); C23C 2/04 (2013.01); C23C 2/06 (2013.01); C23C 2/26 (2013.01); C23C 2/36 (2013.01); C23C 2/40 (2013.01); C23C 28/021 (2013.01); C23C 28/025 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C25D 3/22 (2013.01); C25D 7/0614 (2013.01); B21B 2001/228 (2013.01); B21B 2261/14 (2013.01); B21B 2263/02 (2013.01); C21D 2221/00 (2013.01); Y10T 428/12229 (2015.01); Y10T 428/12354 (2015.01); Y10T 428/12389 (2015.01); Y10T 428/12396 (2015.01); Y10T 428/12438 (2015.01); Y10T 428/12458 (2015.01); Y10T 428/12556 (2015.01); Y10T 428/12569 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/26 (2015.01); Y10T 428/27 (2015.01); Y10T 428/273 (2015.01)] 17 Claims
OG exemplary drawing
 
1. A sheet steel coated with a zinc-based coating and skin-pass rolled with a deterministic surface structure, the surface structure having peak regions and valley regions which are connected to one another via flank regions, wherein the coating, as well as zinc and unavoidable impurities, comprises additional elements including aluminum with an amount of 0.1 up to 5 wt% and magnesium with an amount of 0.1 up to 5 wt% in the coating, the concentration of magnesium on the surface of the coating in the valley regions being lower than on the surface of the coating in the peak regions.