An aluminium profile plant launched in 2019, with 12,000 m² of floor space and an annual capacity of 12,000 tonnes.
Profiles and flat bars of various cross-sections are produced by extrusion. Raw material is AA6060, 6061, 6063 and AD-31 billets conforming to EN 573-3. The plant's quality management system is certified to ISO 9001.
Altec manufactures all types of industrial, furniture and construction profiles and provides electrostatic powder coating, heat treatment, anodising and transfer coating services. The plant also operates an aluminium testing laboratory.
Our goal is to be a high-quality, reliable aluminium plant.
Billets are heated to 420–470 °C and dies to 450 °C; the profile leaves the press at over 500 °C. It is then cooled, stretched, cut to the required length and artificially aged to achieve its mechanical properties.
The closer the billet cross-section is to the profile cross-section, the easier the process. Non-standard dimensions are agreed with the customer and increase the cost of the product.
The aluminium surface is coated with an oxide layer through a chemical process, which improves weather and corrosion resistance and gives a decorative finish. Colouring is done by electrolytic or immersion methods: bronze, brown, black, gold, blue, green and red. Satin, sandblasted and bright effects can be applied before the process.
Anodising has been used for decorative and industrial purposes for 70 years as an environmentally harmless coating method; the layer is very hard and corrosion-resistant.
Sandblasting gives profiles a matt satin look. Polishing with rotating brushes creates a bright profile surface. Satin finishing with special stainless brushes produces a mechanical satin look and prepares the surface for anodising and powder coating.
In polishing, brush pressure is adjustable and polishing compound is fed automatically. Satin finishing is carried out without paste or powder, on both surfaces of the profile at the same time.
Environmentally friendly Cromfree chemical pretreatment is fully automated, and the surface is coated with Super Corona guns and then cured. The properties of the powder-coated product are defined by the QUALICOAT specification; the surface is resistant to UV radiation and temperature changes. The equipment is supplied by Meitu of China.
The quality of powder coating depends on the profile alloy: in 6063 and 6060 alloys, copper must not exceed 0.1% and the Mg/Si ratio must not be below 0.6 — otherwise the risk of filiform corrosion increases. The first weather-resistant polyester powder coating was produced in 1970.
Altec profile codes as given in the 2019–2020 catalogue.
Our highly qualified team fabricates aluminium door and window systems on Elumatec equipment made in Germany. Our experience with local and imported profile systems enables cooperation with foreign investors. Delivery and installation services are available.
Send us the dimensions, quantity and product type, and our specialists will get back to you.
