ELOXALANLAGE | ANODISIEREN ALUMINIUM

COMPACTA

ELOXAL

Kompakte manuell geführte Eloxalanlage, kundenorientiert ausgelegt

ELOXALANLAGE | ANODISIEREN ALUMINIUM

Anodizing process

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.

Anodizing

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.

Model	COMPACTA Eloxal
Dimensions (mm) [WxHxD]	3422 x 2200 x 896
Work surface (LxW) [mm]	200x300 (300 x 400 mm - on request!)
Working height	950 mm
Power consumption [kW]	6,2
Electrical connection	Power supply 400V / 50Hz +N+PE, 5x2.5mm², back-up fuse 20A
Fresh water connection	d16 mm
Waste water connection	d25 mm
Suction connection [mm]	d160

Available accessories and optional conversions

Safety tray
Suction hood
Vibration device
Flow optimization
through special nozzles
Anode set
Chemicals
Board holder
Filters for galvanic baths
Ion exchanger systems for rinsing
Foot switch for spray sink
Changing the pool size
according to the required
Work surface
Pulse reverse rectifier

TAILORED TO YOUR PROCESS

System structure

System structure (basic module):

Pelvic sequence

Electrolytic dyeing

Electrolytic dyeing 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.

Compacting

Um die Einlagerung von korrosionsfördernden Stoffe zu verhindern, müssen die Poren verdichtet werden. Das eloxierte und eventuell gefärbte Aluminium wird in einer Lösung verdichtet. Dabei kommt es zu einer Reaktion zwischen dem Aluminiumoxid und Wasser. Durch die Wasseraufnahme kommt es zu einer Volumenzunahme, so dass die Poren verengt und dann geschlossen werden.