EP 4256106 A1 20231011 - PROCESS FOR PROTECTING A PART MADE OF AN ALUMINUM-BASED ALLOY CONTAINING COPPER
Title (en)
PROCESS FOR PROTECTING A PART MADE OF AN ALUMINUM-BASED ALLOY CONTAINING COPPER
Title (de)
VERFAHREN ZUM SCHUTZ EINES TEILS AUS EINER ALUMINIUMBASIERTEN LEGIERUNG MIT KUPFER
Title (fr)
PROCEDE DE PROTECTION D'UNE PIECE EN ALLIAGE A BASE D'ALUMINIUM CONTENANT DU CUIVRE
Publication
Application
Priority
- FR 2012619 A 20201203
- FR 2021052191 W 20211202
Abstract (en)
[origin: WO2022117970A1] The invention relates to a process (100) for protecting a part comprising an aluminum-based alloy having a copper content of greater than or equal to 0.5% by mass, the process comprising the depositing (102) of a non-conductive protective layer over the entire part, the laser stripping (104) by means of a laser beam of an area of the non-conductive protective layer so as to form an unprotected area, the chemical conversion (106), with trivalent chromium, of the unprotected area so as to form a conductive protective layer, and the drying (108) of the part.
IPC 8 full level
C23C 22/56 (2006.01); C23C 22/73 (2006.01); C25D 11/08 (2006.01); C25D 11/18 (2006.01); C25D 13/22 (2006.01)
CPC (source: EP IL US)
B23K 26/352 (2015.10 - US); C23C 22/56 (2013.01 - EP IL); C23C 22/73 (2013.01 - EP IL); C25D 11/08 (2013.01 - EP IL); C25D 11/18 (2013.01 - EP IL); C25D 11/24 (2013.01 - US); C25D 13/22 (2013.01 - EP IL US); C22C 21/12 (2013.01 - US); C23C 22/56 (2013.01 - US); C23C 2222/10 (2013.01 - EP IL US)
Citation (search report)
See references of WO 2022117970A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022117970 A1 20220609; CN 116670327 A 20230829; EP 4256106 A1 20231011; FR 3117130 A1 20220610; FR 3117130 B1 20240405; IL 303283 A 20230701; US 2024017356 A1 20240118
DOCDB simple family (application)
FR 2021052191 W 20211202; CN 202180081307 A 20211202; EP 21848166 A 20211202; FR 2012619 A 20201203; IL 30328323 A 20230529; US 202118255716 A 20211202