The door profile is a long material that is used especially for the production of doors and windows. It is characterised by high torsional stiffness and easy workability. With the use of aluminium, the door profile can be easily reworked.
Design elements for door profiles
Door profiles are characterised by the following design elements:
- Square or rectangular basic shape
- multiple offsets
- thick material thickness
- at least one internal groove
The basic shape with continuous 90° angles ensures that the door profile is easy to work with. This means that angled branches can always be produced without having to introduce complex shapes such as radii or recesses on one side. This is particularly advantageous for serial production.
The offsets along the door profile contribute to its torsional rigidity and bending strength. Door profiles are often suspended at only a few points and are loaded to swell. With maximum stiffness, the door remains in its original shape throughout its lifetime and thus retains its function.
The great strengths of the material give the door profile extensive machinability. The insertion of through and threaded holes is particularly easy and sustainable. This means that every door profile can be configured exactly to the requirements of the respective application.
The inner groove of a door profile is used to accommodate the surface material. For doors, this is usually opaque panels made of Dibond, wood, plastic, aluminium or sheet metal. Double or triple inner grooves in door profiles are used for the production of heat-insulating windows.
Processing of door profiles
Door profiles are usually cold-joined. Since they are always used to make frame-like constructions, thermal joining is not advantageous. High-temperature welding would endanger the dimensional stability of a frame construction. In contrast, door profiles that have been sawn to size can be screwed together without any problems. The addition of adhesives makes these screwed joints very durable and difficult to loosen. This prevents the screws in the door profiles from loosening again. This is a great danger due to the operational nature of door profiles. Doors are constantly opened and closed. This constant acceleration and twisting of the frame can quickly loosen unsecured screw connections and thus endanger the entire statics of the construction. However, with suitable securing measures, the frames made of door profiles remain in the desired shape for years.
Advantages of door profiles made of aluminium
A door profile is usually made of plastic, aluminium or wood. Compared to wood, aluminium and plastic are particularly durable and require practically no extended protective measures. A door profile made of aluminium is particularly environmentally friendly because it can be 100 % recycled.