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Design and Protection
The anodising process is changing the aluminium surface into an aluminium oxide layer by anodic oxidation in the top aluminium zone. There is a 5 to 25 µm thin, durable hard layer, which protects against corrosion.The oxide layer grows forming columns to about 2/3 within material and 1/3 builds up externally. Semi-automatic Device Dimensions Bath 4.000 x 1.000 x 500mm Hand-Feeding System / Device Dimensions Bath 2.500 x 700 x 500mm Surface composition according to DIN 17611 (Pre-Treatment-Options) E0 - degreasing Without mechanical or chemical pre-treatment (scratches and defects remain visible). Used for unseen surfaces in the background. E1 - Grinding Grinded decorative surface with a clear directional structure and a smooth matt-finished appearance. E2 - Brushing Brushed matt-finished surface with an easy-to-care, fine structure (brush strokes). E3 - Polishing Polished shiny and blank surface for interior products. E4 - Grinding and Brushing Grinded and brushed uniform glossy surface. Mechanical surface-defects are fixed. E5 - Grinding and Polishing Grinded and polished surface with a smooth shiny "noble" appearance. Best elimination of mechanical surface-defects. E6 - Pickling Chemical pre-treatment (alkaline solution) with an uniform material removal and smooth matt gloss. Mechanical surface-defects are equalized (no complete elimination). 
Glossary  Overview
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