サン工業株式会社

Black electroless nickel plating

This process blackens the surface of electroless nickel plating to give it a jet-black color.
The surface is blackened by blackening treatment after processing a special electroless nickel plating.

Basic characteristics

Wear resistance Heat resistance Corrosion resistance Chemical resistance Decorativeness Lubricity Adhesion Electrical conductivity Dimensional accuracy
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Features

Features 1

Appealing black surface

After performing electroless nickel plating, the outermost layer is dissolved and oxidized or sulfurized to obtain a black film with a chic look. Because fine bumps are formed on the surface by this treatment, the concave parts absorb visible light to reduce light reflection resulting in a deeper black color.

Features 2

Uniform and dimensionally accurate plating

As with electroless nickel plating, the plating film thickness is uniform and dimensional accuracy is high.

Plating equipment

Processing type Maximum size Maximum weight
Rack 300 × 400 × 200H 5kg

Proceccable materials

Iron materials、Copper materials、Stainless materials、Alminium materials

Application

Optical device housing, inner parts, lens holders, medical instruments, semiconductor-related equipment parts, etc.

Plating & surface treatment technology.