US 12,465,946 B2
Method for compacting an anticorrosion coating
Léa Rebecca Gani, Moissy-Cramayel (FR); and Maxence Gombault, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/773,389
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Oct. 28, 2020, PCT No. PCT/FR2020/051946
§ 371(c)(1), (2) Date Apr. 29, 2022,
PCT Pub. No. WO2021/084205, PCT Pub. Date May 6, 2021.
Claims priority of application No. 1912206 (FR), filed on Oct. 30, 2019.
Prior Publication US 2022/0410209 A1, Dec. 29, 2022
Int. Cl. B05D 3/12 (2006.01); B05D 3/02 (2006.01); B05D 7/00 (2006.01); B24C 1/10 (2006.01); F01D 25/00 (2006.01)
CPC B05D 3/12 (2013.01) [B05D 3/0254 (2013.01); B05D 7/546 (2013.01); B24C 1/10 (2013.01); F01D 25/005 (2013.01); F05D 2220/30 (2013.01); F05D 2240/60 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for obtaining an anticorrosion coating with anodic sacrificial properties on a steel support, comprising:
applying on the steel support a first paint layer comprising independent aluminium particles and a mineral binder;
drying the first paint layer;
heating said support;
compacting said first paint layer such that it has a resistance less than 5 Ohms, without reducing said first paint layer thickness by more than 10 μm, without degrading the adherence of said first paint layer by projecting water soluble particles comprising sodium hydrogen carbonate on said first paint layer comprising independent aluminium particles and a mineral binder;
eliminating encrusted water soluble particles comprising sodium hydrogen carbonate by rinsing the first paint layer with water.