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.
Electrolytes 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) |
| Max. coating thickness | Up to 10 μm bright depositions, Thicknesses > 10 μm semi-matt |
| 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
