EP 0089455 B1 19850828 - METHOD FOR PHOSPHATING METAL SURFACES IN NON-AQUEOUS PHOSPHATING BATHS
Title (en)
METHOD FOR PHOSPHATING METAL SURFACES IN NON-AQUEOUS PHOSPHATING BATHS
Publication
Application
Priority
DE 3209828 A 19820318
Abstract (en)
[origin: ES8401147A1] A process for phosphating metallic surfaces in nonaqueous phosphating baths comprising low-boiling halogenated hydrocarbons, aqueous phosphoric acid as the phosphating agent, alcohols as the solubilizer, and, optionally, further known components, e.g., stabilizers, inhibitors, or accelerators, comprising dipping the workpieces to be phosphated at least twice for at least 10 seconds into the boiling phosphating bath and, in the interval, leaving them for at least 20 seconds in the gaseous phase.
IPC 1-7
IPC 8 full level
C23C 22/73 (2006.01); B05D 1/18 (2006.01); B05D 1/38 (2006.01); C23C 22/03 (2006.01)
CPC (source: EP US)
C23C 22/03 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0089455 A1 19830928; EP 0089455 B1 19850828; AT E15234 T1 19850915; DE 3209828 A1 19830922; DE 3360628 D1 19851003; DK 119583 A 19830919; DK 119583 D0 19830315; ES 520735 A0 19831216; ES 8401147 A1 19831216; GR 77946 B 19840925; JP S58167780 A 19831004; US 4447273 A 19840508
DOCDB simple family (application)
EP 83100386 A 19830118; AT 83100386 T 19830118; DE 3209828 A 19820318; DE 3360628 T 19830118; DK 119583 A 19830315; ES 520735 A 19830317; GR 830170752 A 19830310; JP 4163183 A 19830315; US 47579883 A 19830316