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ARGUNA® 630 Hard Silver Electrolyte

ARGUNA® 630 Hard Silver Electrolyte

For the Deposition of Silver Layers with High Hardness

ARGUNA® 630 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 140 HV, even after thermal aging.

In particular, ARGUNA® 630 is, suitable for electromechanical components that are exposed to increased mechanical stress. The higher hardness and reduced wear of the coatings show particular advantages in the case of more severe vibration and temperature stresses on contact surfaces and connectors.

Appropriate contact lubrication makes the coatings suitable for e-mobility applications and increases the reliability and durability of the contact systems.

According to the operating parameters, the electrolyte is suitable for reel-to-reel plating, rack and barrel systems.

Electrolyte characteristics

Electrolyte type

Alkaline-cyanide

Metal content

30 (25 - 35) g/l Ag

KCN content

130 (110 - 170) g/l

pH value

12.5

Operating temperature

25 - 40 °C

Current density range: Rack operation

0.5 - 5 A/dm²

Current density range: Barrel operation

0.5 - 2 A/dm²

Current density range: Reel-to-reel plating

5 - 50 A/dm²

Plating speed: Rack operation at 1 A/dm2

1 μm in 1.5 min

Plating speed: Rack operation at 5 A/dm2

1 μm in 0.3 min

Plating speed: Reel-to-reel plating at 20 A/dm2

13 μm in 1 min

Anode material

Fine silver

Coating characteristics

Coating

min. 98 wt.% Ag

Colour of deposit

White

Brightness

Bright

Hardness

approx. 120 - 140 HV (after thermal aging)

Density of the coating

10.5 g/cm³

Advantages

  • Perfect silver layers for highly stressed electro–mechanical components
  • High, stable coating hardness between 120 to 140 HV, even after thermal aging
  • Reduced wear, improved vibration and
  • Temperature resistance
  • Suitable for reel-to-reel, rack and barrel plating
  • Good electrical properties, even for high voltage

Applications

  • Connectors subject to high stress
  • Plug-in chargers for electric vehicles

Downloads

  • Produktblatt_ARGUNA_630_EN.pdf

Your contact person

Markus Legeler

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316
Email

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