Aluminum profiles are by-products usually for structural purposes. It is possible to distinguish three types of profiles according to their use: construction, architectural and industrial.
- Construction profiles:this profiles offers high bending and torsional stiffness despite their low net weight. Solar panel frames, structures for working platforms and scenarios, etc.
- Architectural profiles:For this applications is very important the surface finish. Architectural profiles are used to made frameworks for windows, doors and curtain walls.
- Industrial purposes:On industry aluminum profiles are used to several purposes where is not too important his stiffness or quality surface, but a combination of both along with other characteristics of the material, such as conductivity, provides a wide variety of uses in industry to this by-product. Some examples can be: cable channels systems, heat sinks, air conditioning, cabinets and furniture, etc.
Extrusion is the process most often used for uniform section profiles of aluminum. This method allows to produce high quality products at low cost. Being able to produce slender hollow parts with narrow tolerances and good mechanical properties.
Aluminum as most of metals, requires heat treatments to obtain the desired mechanical properties. For aluminum, as to nickel or titanium, the hardening process is by aging. For this reason, is important define the heat treatment according to the application. The three more common heat treatments applied to aluminum profiles are:
- T4:Tempered from the solution temperature by forced air, natural aging.
- T5:Tempering treatment from the extrusion temperature using forced air, then artificial aging. It is the most common heat treatment on aluminum profiles to doors and windows profiles.
- T6:Tempered from the solution temperature by water (under 40ºC) and artificial aging.
The followings are the most common surface treatments of our aluminum profiles, to allow our customers satisfaction for any constructive necessity.
- Polished:is the process of creating a smooth and shiny surface by rubbing it or using a chemical action.
- Anodized:is a characteristic aluminum coating, this method consist on increase the thickness of the natural oxide layer on the surface of aluminum parts, to obtain greater strength and durability components.
- Powder coating:it can produce thicker coatings than conventional liquid coatings without running or sagging.
The most common used aluminium alloys to produce profiles are alloys from the series 6xxx. The most used to produce aluminium profiles to construction are 6060 and 6063 with heat treatment T5.
Gestión de Compras also produce profiles with other alloys as 5xxx or 7xxx series according to the customer needs.
STANDARD AND CERTIFICATES
To ensure tolerances for aluminum profiles are correct we usually use the following standards:
- EN 755-9:Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles – Part 9: Profiles, tolerances on dimensions and form.
- EN 12020-2:Aluminium and aluminium alloys – Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 – Part 2: Tolerances on dimensions and form.