Anodizing of aluminium in surface industry
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- Andodizing of Aluminium
Example flowsheet:
Scheme of different possibilities for the surface treatment of aluminium:
Literature: Oberflächenbehandlung von Aluminium; T.W. Jelinek; Eugen G. Leuze Verlag, D-88348; 1997
- Typical parameters of the process
| Process | Temperature [°C] | Chemicals | Details | Literature |
| General anodizing | 15-25 | 150-230 g/l H2SO4 | anodizing voltage: 17-22 V; film thickness: 5- 30 μm | BAT for the surface treatment of metals & plastics, 2006 |
| Hard anodizing | <5 | film thickness: 25- 250 μm | ||
| Chromic acid anodizing | 38-42 | 30-100 g of chromic acid/l | film thickness: 2-5 μm |
Literature: Oberflächenbehandlung von Aluminium; T.W. Jelinek; Eugen G. Leuze Verlag, D-88348; 1997
