Production Processes
Eloxal
Eloxal coating is one of the most important surface treatment processes applied to aluminum products.
Eloxal process:
• This electrochemically coats the aluminum with an oxide layer, both to increase the resistance of the aluminum's surface to weather conditions, and provide a decorative appearance (approximately 5 to 25 microns).
• After coating, colorization is achieved through an electrolytic or dipping colorization process
• (Bronze, Brown, Black, Yellow, Blue, Green and/or Red tones)
• Satin, sandy and glossy effects can be applied to a profile's surface based on the client's requirements.
• The eloxal process is an environment-friendly surface treatment method that has been used for 70 years for both decorative and industrial applications.
• As the eloxal layer is extremely hard and wear-resistant and it gives aluminum superior properties.
• Our eloxal products are all QUALANOD certified.
• Our facility housing five 15,000-amp eloxal baths and two 8,000-amp electrolytic colorization baths has an annual capacity of 12,000 tonnes.
Max. Profile Length: 7,100 mm (including suspension trace distance) Layer thickness: 5-25 microns
Suspension Trace in the Middle: Optional Suspension Trace at Tips: At both tips of the profile (max. 50 mm)
A sandblasting machine has been developed to add a mat satin appearance to the surface of aluminum profiles. While the matt appearance, called "E6 eloxal" in the European Aluminum Eloxal Surface Definition, is applied by immersion in a caustic bath and via long-term etching, using the sandblasting machine significantly reduces the causticization period and savings are achieved in both production and wastewater treatment.
Polishing is a preliminary mechanical process used to manufacture glossy profiles. First, the aluminum profiles to be polished are placed on a table. The table moves under the spindle head. The rotating polishing brushes are held in a fixed position-and the aluminum profiles are polished. The pressure applied on the aluminum profile by the polishing brushes can be adjusted. The automatic polishing system sprays a desired amount of polish on the polishing brushes at specified intervals. If desired, the polishing head can oscillate axially.
This process facilitates the work of the aluminum eloxal coating process and of the powder paint applicators. It is used to give a mechanical satin appearance to the aluminum profile's surface. Utilizing special brushes installed on the machine, the process works without the use of any paste or polish and no powder waste is emitted into the atmosphere. The satin finishes are made simultaneously from both ends of the profile, from the bottom and from the top.
