EP 1155163 B1 20031105 - METHOD FOR PHOSPHATIZING ZINC OR ALUMINIUM SURFACES
Title (en)
METHOD FOR PHOSPHATIZING ZINC OR ALUMINIUM SURFACES
Title (de)
VERFAHREN ZUR PHOSPHATIERUNG VON ZINK- ODER ALUMINIUMOBERFLÄCHEN
Title (fr)
PROCEDE POUR LA PHOSPHATISATION DE SURFACES EN ZINC OU EN ALUMINIUM
Publication
Application
Priority
- DE 19905479 A 19990210
- EP 0000865 W 20000203
Abstract (en)
[origin: WO0047799A1] The invention relates to a method for phosphatizing zinc or aluminium surfaces with a phosphatizing solution containing 0.5 to 2.0 g/l Zn<2+>, 0.3 to 2.0 g/l Ni<2+>, 0.1 to 0.4 g/l NH2OH, at least 3.0 g/l NO3<-> and 10.0 to 20.0 g/l phosphate (calculated as P2O5). Said solution is applied to the surfaces by immersion or spraying at 35 to 75 DEG C, the immersion time being 0.5 to 10 minutes and the spraying time being 3 seconds to 5 minutes.
IPC 1-7
IPC 8 full level
C23C 22/13 (2006.01); C23C 22/18 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP)
C23C 22/13 (2013.01); C23C 22/184 (2013.01); C23C 22/362 (2013.01); C23C 22/365 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0047799 A1 20000817; AT E253651 T1 20031115; AU 2669400 A 20000829; CA 2362556 A1 20000817; DE 19905479 A1 20000817; DE 50004321 D1 20031211; EP 1155163 A1 20011121; EP 1155163 B1 20031105
DOCDB simple family (application)
EP 0000865 W 20000203; AT 00905014 T 20000203; AU 2669400 A 20000203; CA 2362556 A 20000203; DE 19905479 A 19990210; DE 50004321 T 20000203; EP 00905014 A 20000203