Apart from anodising, hard anodising, plasma coating and varnishing processes, ion-assisted aluminium coatings have become well established in the aerospace industry.
After degreasing and sandblasting, the workpiece is transferred into a chamber for vacuum coating, where its surface is cleaned by means of plasma glow discharge. Immediately afterwards, it is vaporised with electrically charged aluminium powder.The result: efficient corrosion protection at temperatures between 0 and 300°C.
IVD aluminium by Aalberts surface treatment is available in three coating classes:
- >25 µm for very high corrosion resistance (at least 504 h in the salt spray test)
- 13 to 25 µm for close tolerances
- 8 to 13 µm for fasteners and particularly narrow tolerances and/or delicate surfaces
IVD aluminium coatings are applied, for example, to titanium fasteners which are used to join aluminium assembly Groups. Aalberts surface treatment implements this specific coating process using drum systems and large coating plants. Thus, we are able to vaporise bulk goods and large components in dimensions of up to 200 x 30 cm. Thanks to movable holders, top-quality surface finishes can also be easily applied to complex parts, such as chassis components, airframe parts or plug connectors