EP 1439243 B1 20080319 - Method of non-chromate pretreatment for metal alloys
Title (en)
Method of non-chromate pretreatment for metal alloys
Title (de)
Chromatfreies Vorbehandlungsverfahren für Metallegierungen
Title (fr)
Procédé de prétraitement non-chromate pour alliages métalliques
Publication
Application
Priority
EP 03001023 A 20030117
Abstract (en)
[origin: EP1439243A1] A method of non-chromate pretreatment for metal alloys includes steps of degreasing, water rinsing and film treatment. The film treatment is to have the alloy surface coated with coating liquid which will carry out film coating reaction to the alloy surface and bond with the alloy surface to form a film thereon. In the process of the film treatment, it is impossible to produce industrial waste water containing heavy metallic ion, able to reduce environmental pollution to the minimum. <IMAGE>
IPC 8 full level
C23C 18/12 (2006.01)
CPC (source: EP)
C23C 18/122 (2013.01); C23C 18/1241 (2013.01); C23C 18/1295 (2013.01); C23C 22/57 (2013.01); C23C 22/73 (2013.01); C23C 22/83 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
EP 1439243 A1 20040721; EP 1439243 B1 20080319; AT E389738 T1 20080415; DE 60319795 D1 20080430; DE 60319795 T2 20090416; ES 2302873 T3 20080801
DOCDB simple family (application)
EP 03001023 A 20030117; AT 03001023 T 20030117; DE 60319795 T 20030117; ES 03001023 T 20030117