HARD SILVER ELECTROLYTE
ARGUNA® 630 GAM is an alkaline cyanide hard silver electrolyte for (electro) technical applications. The additives increase the wear resistance compared to conventional silver layers significantly: The layers obtain a stable hardness of 120 to 130 HV, even after thermal aging. In particular, ARGUNA® GAM 630 is, suitable for electromechanical components that are exposed to increased mechanical stress. The higher hardness and improved wear resistance allow significantly more mating cycles. Additionally, the reliability and durability of the contact systems increase. According to the operating parameters, the electrolyte is suitable for reel-to-reel plating, rack and barrel systems.
Advantages
• Perfect silver layers for highly stressed electro–mechanical components
• High, stable coating hardness between 120 to 130 HV, even after thermal aging
• Low wear, thus significantly more mating cycles
• Suitable for reel-to-reel, rack and barrel plating
• Good electrical properties, even for high voltage
Applications
• Electromechanical connectors
• High voltage contacts
• Plug-in chargers for electric vehicles
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ELECTROLYTE CHARACTERISTICS |
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COATING CHARACTERISTICS |
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Electrolyte type |
Alkaline-cyanide |
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Coating |
Fine silver |
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Metal content |
30 - 60 g/l Ag |
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Purity |
99.9 wt.% Ag |
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NaCN content |
130 (110 - 140) g/l |
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Colour of deposit |
white |
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pH value |
12.5 |
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Brightness |
Bright |
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Operating temperature |
25 - 40 °C |
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Hardness of deposit |
170 - 190 HV |
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Current density range |
0.5 - 5 A/dm² |
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Max. coating thickness |
> 100 μm |
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Plating speed |
1 μm in 1.5 min |
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Density of the coating |
10.5 g/cm³ |
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Anode material (fine silver, as Ag |
Pt-Ti (type PLATINODE Pt/Ti) |
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