DEMARTIN Galvanic nickel
Alvanised nickel layers are generally used as corrosion protection layers, optical coatings (bright nickel) or as a base for subsequent soldering processes. Nickel is a good electrical conductor, which makes electroplated nickel surfaces attractive for electronic applications, such as in the electrical and electronics industry. Appropriate additives are added to the nickel electrolytes to produce high-gloss or matt-textured layers.
Nickel is a silver-coloured metal with good resistance to chemical attack. Diluted acids, alkalis and water are practically incapable of attacking nickel. The tarnish resistance of nickel is low. Under certain conditions, nickel is able to passivate in air, which significantly increases its resistance to corrosive influences. For electroplating applications, however, it is often subsequently chrome-plated. Nickel has good ductility in its pure state. This is important for applications where complex shapes need to be coated.
Sulphamate nickel without subsequent coating
- Standard coating, layer thicknesses of up to 300μm possible
- Sulphamate nickel with subsequent chrome plating (hard chrome or bright chrome)
- Sulphamate nickel with subsequent tinning
Arguments
- Corrosion protection
- High gloss level
- High ductility
- Solderability
- Diffusion barrier
Specifications
Coatable materials
- Non-ferrous metals
- Steel / stainless steel
- Aluminium
- Copper
- Brass
- Cast iron
- Titanium
Industries
- Medical technology
- Machinery industry
- Semiconductor industry / semiconductors
- Textile machinery industry
- Energy and electrical engineering
- Mould and tool making
- Plant and apparatus engineering
- Armaments industry
- Aerospace
- Automotive industry
Technical advantages of electroplated nickel
Electroplated nickel is a versatile and widely used surface coating that is applied to various substrates by electroplating. This coating offers numerous technical advantages that make it a preferred choice in many industrial applications.
Variants of electroplated nickel
Sulphamate nickel: This variant is characterised by particularly high ductility. With an elongation of up to 30%, sulphamate nickel offers excellent mechanical properties that make it ideal for applications that require high ductility and toughness. It also has very low hydrogen embrittlement, which makes it ideal for high-strength components.
Glossy nickel: In addition to its technical advantages, bright nickel also offers an aesthetically pleasing, shiny surface. This variant is often used in decorative applications where, in addition to corrosion protection, appearance also plays a role. Bright nickel has a hardness of up to 650 HV and therefore offers high wear resistance.