Anodisation
Anodisation
The method is an imitation of the natural protective process of the aluminium, but in the HAI process oxidation is performed quickly, in clean surroundings and is fully controlled.
This process is known as anodisation or anodic oxidation.
Advantages:
- The protective surface becomes more fast to light, thicker and stronger.
- The protective layer is approximately 100 times thicker and therefore more durable than the natural process.
- Corrosion-resistant, dirt-repelling and electrically insulated.
Structure and appearance after treatment:
- The impression of metal is retained
- The anodisation layer is transparent so that the surface can be given structure or colour
- The surface is given a beautiful lustre with depth of colour, which makes the surface interesting
Layer thickness:
The layer thickness of the anodisation is chosen depending on the required corrosion resistance, hardness and colour properties. Recommendation:
- 3 my - Protection when machining
- 5 my - Indoors without functional application
- 10 my - Indoors with functional application
- 15 my - Outdoors in lighter corrosion environments
- 20 my - Outdoors in normal corrosion environments
- 25 my - Outdoors in severe corrosion environments
Anodisation can be performed up to approximately 25 my. Individual cast alloys cannot achieve as many my. In general the lustre of the product will decrease with an increased layer thickness.
Colouring:
At HAI we are able to control colouring very accurately during the process. This ensures:
- Uniform appearance every time
- Design opportunities
HAI recommends a minimum of 10 my for colouring.
Customers
Anodisation is used within many industries.
Customers: Click here and see a selection of the many industries that use anodisation.
Customer cases: Click here – and read more about a selection of the assignments we have completed for our customers.