Electroplating is the electrochemical deposition of metallic deposits (coatings) on objects.

The deposition of metals in electroplating is based on an electrolyte through which current is passed. The electrolyte (an electrically conductive liquid) consists, among other things, of metal salts of the metal to be deposited (e.g. nickel, copper or zinc). If the metals are not complexed, they are present in the electrolyte as positively charged ions (e.g. Ni2+, Cu2+ or Zn2+). The material to be coated is connected to the cathode (negative pole) and is therefore also called the cathode. In order to create a closed circuit, you need the opposite pole (positive pole) which is called the anode. As soon as the current is applied, the ions begin to migrate to the opposite pole. The positive metal ions (cations) migrate to the negative cathode (workpiece) and are reduced to the metal by accepting electrons. The longer this process lasts and the higher the electric current, the greater the thickness of the layer.

Basic distinction between decorative and functional layer. In detail, a galvanically generated layer can fulfill one or more of the following functions:

The areas of application for electroplated layers are incredibly diverse, which is why electroplating is omnipresent in everyday life and it is impossible to imagine life without it.

Carrier materials:

Iron and steel alloys, non-ferrous metals, aluminum


Characteristics:

  • decorative appearance
  • Good electrical conductivity
  • Food safety
  • corrosion protection
  • excellent soldering skills
  • RoHS compliant

Application:

  • decorative surfaces
  • electrical contacts and components
  • Food industry
  • Products that come into contact with food

Carrier materials:

Iron and steel alloys, non-ferrous metals, aluminum

Characteristics:

  • very good electrical conductivity
  • particularly suitable for the electrical and electronics industry
  • very good spreadability
  • Specific electrical resistance 1.66 μΩ x cm
  • Hardness of coatings 80 – 120 HV0.05
  • bright, glossy and haze-free coatings
  • high-gloss, decorative coatings on request

Application:

  • electrical contacts
  • Avoidance of fretting corrosion and seizure in engine construction

Carrier materials:

Iron and steel alloys, non-ferrous metals, aluminum

Characteristics:

Controllable optics through different electrolytes. From matte to satin to high-gloss nickel. Corrosion-inhibiting, application and appearance-defining surfaces, and as an intermediate layer for decorative chrome plating, gold plating, etc.

Application:

  • universal coating for many components
  • Basis for special effects in furniture, lighting and luminaire, fixture and appliance manufacturing

Carrier materials:

Iron and steel alloys, non-ferrous metals, aluminum

Characteristics:

  • decorative appearance
  • Good electrical conductivity
  • corrosion protection
  • High-performance electrolyte for the deposition of bright, smooth, fine-crystalline and ductile copper layers
  • primarily serves as a precopper electrolyte
  • Advantage: Steel and aluminum can be copper plated directly

Application:

  • decorative surfaces
  • Intermediate layer on many base materials for subsequent coatings
  • Intermediate layer- mechanically polished for the highest requirements in terms of appearance and corrosion protection.
  • Improvement of conductivity, reduction of contact resistance of electrically used parts

Carrier materials:

Iron and steel alloys, non-ferrous metals, aluminum

Characteristics:

  • good metal distribution and excellent hiding power
  • Coatings are fine-grained, moderately glossy and ductile
  • high-gloss, decorative coatings on request

Application:

  • Intermediate layer on many base materials for subsequent coatings
  • Intermediate layer- mechanically polished for the highest requirements in terms of appearance and corrosion protection.