For deposition of wear-resistant silver layers with high hardness
ARGUNA® 3430 is an alkaline, cyanide-free electrolyte for the deposition of technically functional silver layers.
The electrolyte does not contain any toxic cyanide compounds and can therefore be used in a simplified way under the increasing environmental and safety requirements. The deposited layers have excellent abrasion resistance and are particularly suitable for the application of highly stressed electrical contact surfaces. An excellent thermal resistance improves the reliability and lifetime of these contact systems.
ARGUNA® 3430 is ideally suited for rack and barrel applications. Coating thicknesses up to 40 μm are possible without any problems.
Electrolyte characteristics
Electrolyte type cyanide-free, alkaline
Metal content 20 (18 - 30) g/l
pH value 10.4 (10.2 - 10.6)
Operating temperature 30 (25 - 45) °C
Current density range 0.5 - 1.5 A/dm²
Plating speed 1 μm in 1.5 min at 1.0 A/dm²
Coating characteristics
Coating Hard silver
Purity >97 wt.% Ag
Colour of deposit white
Hardness of deposit 170 - 190 HV (after deposition), approx. 150 HV (after aging)
Density of the coating ca. 10.5 g/cm³
Advantages
Cyanide-free, significantly reduced exposure to hazardous substances
Excellent wear resistance of the coatings
Excellent thermal resistance
Improved reliability of contact systems
Ideal for rack and barrel operation
Applications
E-Mobility / Automotive
Charging connectors
High Power Contacts
