EP 0012399 B2 19860917 - PROCESS FOR APPLYING METALLIC COATINGS TO METALLIC WORKPIECES BY A MECHANO-CHEMICAL TREATMENT OF SAID PIECES
Title (en)
PROCESS FOR APPLYING METALLIC COATINGS TO METALLIC WORKPIECES BY A MECHANO-CHEMICAL TREATMENT OF SAID PIECES
Publication
Application
Priority
- DE 2854159 A 19781215
- DE 2919726 A 19790516
Abstract (en)
[origin: EP0012399A1] 1. A process for applying metallic coatings to metallic workpieces by treating the workpieces in a bath containing inert impact bodies, the workpieces being immersed into the bath and a relative movement being produced between the workpieces and impact bodies or bath, and after cleaning of the workpieces metal ions and also a reaction mixture as well as the metal powder forming the coating are added to the bath containing an aqueous acid solution with nonylphenol-polyglycolether as an activator, characterized in that simultaneously the metal powder and a reaction mixture of hydrazine chloride and/or hydrazine sulphate and/or iron-II-sulphate with metal ions for local element formation as well as with tin-II- and/or antimony-III- sulphate to form a spongy tin or antimony layer adhering to the metal powder particles is added to the bath set at a pH value of between 1 and 2.
IPC 1-7
IPC 8 full level
C23C 24/04 (2006.01)
CPC (source: EP)
C23C 24/045 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0012399 A1 19800625; EP 0012399 B1 19821117; EP 0012399 B2 19860917; DE 2964070 D1 19821223
DOCDB simple family (application)
EP 79105012 A 19791208; DE 2964070 T 19791208