Traitement de surface

In electrical and electronic applications, contact resistance plays a crucial role. The formation of oxide layers can compromise this severely and may cause contact failure. As a rule, therefore, at least the contact zones are coated. The most common coatings are of tin or tin alloys. Our products are treated on ultra modern hot dip tinning plant. A range of tin plated variants are possible, depending on the customer’s requirements.

Further Details

We can also offer strips with full or selective silver or nickel plating. These strips you can purchase directly from us as a single source. They are finished at external partner companies.

The surface quality depends greatly on the roughness. We offer the following roughnesses as standard:
 

Modification possible due to alloy or thickness

If you wish the end products to fulfil high visual requirements, we can offer you a range of special qualities to choose from:
 

• for mirror finishing
• for electrolytic polishing
• for etching
• bright rolled
• mirror finish rolled
• free of flow lines

These special products set certain restrictions on the range of geometries. Our experts will be pleased to advise you on the surface qualities best fulfilling your requirements.

Sheets and strips may be provided with a protective film of PE that protects the surfaces against mechanical damage during downstream machining processes. The film is attached with an acrylic adhesive and can be drawn off after processing.