Compact, manually operated anodising system, designed to meet customer requirements
The anodizing process (abbreviation for electrolytic oxidation of aluminium) is a surface technology method for creating an oxidic protective layer on aluminium through anodic oxidation. In contrast to galvanic coating processes, the protective layer is not deposited on the workpiece, but an oxide or hydroxide is formed by converting the uppermost metal zone. The result is a 5 to 25 micrometer thin layer that protects against corrosion. The natural oxide layer of aluminum is only a few nm.
First, the aluminium parts are pre-treated, i.e. cleaned and pickled to remove adhering dirt and the thin natural oxide layer. This is followed by the actual anodizing, sometimes the fresh porous layer is then dyed with dyes, and finally sealing is carried out, usually simply with hot water (hot rinsing). There is also the option of chemical sealing (treatment basin: pre-sealing, sealing). The anodizing process uses electrolysis. The cathode (negative electrode) breaks down the oxonium (H3O+) contained in the acid into hydrogen and water. The hydrogen is released.
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Model
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COMPACTA Eloxal
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Dimensions (mm) [WxHxD]
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3422 x 2200 x 896
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Work surface (LxW) [mm]
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200x300 (300 x 400 mm - on request!)
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Working height
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950 mm
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Power consumption [kW]
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Electrical connection
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Power supply 400V / 50Hz +N+PE,
5x2.5mm², back-up fuse 20A |
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Fresh water connection
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d16 mm
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Waste water connection
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d25 mm
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Suction connection [mm]
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d160
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Available accessories and optional conversions
System structure (basic module):
Pelvic sequence
Electrolytic colouring is carried out with alternating voltage. The electrolyte contains a coloring metal salt. The duration of the electrolysis depends on the desired color depth. The metal ions penetrate deep into the pores of the coating. The pores, which are thus partially filled with metal, now cause a lightfast coloration through absorption and scattering effects.
First, an electrolyte is formed in the sulfuric acid bath a closed layer which, as it continues to grow, turns into into fine capillary-like pores. Color pigments can now be deposited in these pores. can be deposited.
Finally, the pores are sealed by sealing (also called sealing).
The color is not applied in this way, but is part of the anodized layer and therefore very well protected against abrasion and chemical influences.
To prevent the storage of corrosion-promoting substances, the pores must be compacted. The anodised and, if necessary, coloured aluminium is compacted in a solution. This causes a reaction between the aluminium oxide and water. The absorption of water causes an increase in volume, so that the pores are narrowed and then closed.
We plan, develop and construct manual or automated units according to your individual surface process.
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Birkenstraße 13 | 97892 Kreuzwertheim | Germany
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