EP 1060291 A2 20001220 - METHOD FOR PRODUCING A CORROSION PROTECTIVE COATING AND A COATING SYSTEM FOR SUBSTRATES MADE OF LIGHT METAL
Title (en)
METHOD FOR PRODUCING A CORROSION PROTECTIVE COATING AND A COATING SYSTEM FOR SUBSTRATES MADE OF LIGHT METAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KORROSIONSCHÜTZENDEN BESCHICHTUNG UND SCHICHTSYSTEM FÜR SUBSTRATE AUS LEICHTMETALL
Title (fr)
PROCEDE POUR PRODUIRE UN REVETEMENT DE PROTECTION CONTRE LA CORROSION ET SYSTEME EN COUCHES POUR SUBSTRATS EN METAL LEGER
Publication
Application
Priority
- DE 19807823 A 19980226
- EP 9901267 W 19990226
Abstract (en)
[origin: DE19807823A1] The invention relates to a method for producing a corrosion protective coating for a substrate made of light metal or of a light metal alloy. According to the invention, a non-electrically conductive first layer (10) is first deposited on the substrate (5), whereby the non-electrically conductive first layer (10) is produced by anodic oxidation of the substrate (5). Later, the non-electrically conductive first layer produced by anodic oxidation is subjected to a redensification. Afterwards, a metallic layer (20) is deposited on the non-electrically conductive first layer (10) without using current. Later, a third layer (30) is deposited on the metallic second layer (20). By using this method, wheel rims and wheel trim, for example, for motor vehicles can be chromed.
IPC 1-7
IPC 8 full level
B05D 5/06 (2006.01); C23C 18/18 (2006.01); C23C 28/00 (2006.01); C25D 11/18 (2006.01)
CPC (source: EP US)
B05D 5/068 (2013.01 - EP US); C23C 18/1653 (2013.01 - EP US); C23C 18/1889 (2013.01 - EP US); C23C 28/322 (2013.01 - EP US); C23C 28/345 (2013.01 - EP US); C23C 28/347 (2013.01 - EP US); C25D 11/18 (2013.01 - EP US)
Citation (search report)
See references of WO 9943869A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19807823 A1 19990909; DE 59900592 D1 20020131; EP 1060291 A2 20001220; EP 1060291 B1 20011219; JP 2002505379 A 20020219; JP 4567187 B2 20101020; US 6703135 B1 20040309; WO 9943869 A2 19990902; WO 9943869 A3 19991229
DOCDB simple family (application)
DE 19807823 A 19980226; DE 59900592 T 19990226; EP 9901267 W 19990226; EP 99911717 A 19990226; JP 2000533607 A 19990226; US 62323100 A 20000828