Types of Windows depending on the profile design

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Subject: Types of Windows depending on the profile design
Types of Windows depending on the profile design
After finding out what plastic Windows are by opening method, you need to get information about the type of profile they are made of. It has a very large impact on both the performance properties of the window and its price.
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The main material for the production of metal-plastic Windows is polyvinyl chloride-a polymer based on chlorine and ethylene, with the addition of plasticizers, modifiers and stabilizers. After melting the powdered raw material, the resulting mass is pressed and the walls of the future profile the main component of the window frame-are formed.

After obtaining a complex configuration of the surface of the part, a "P"-shaped metal profile or a square profile pipe is inserted inside it and the entire structure is glued with thermal soldering metal. Modifiers and stabilizers turn polyvinyl chloride into a material that is resistant to mechanical influences, chemically inert, non-flammable and not subject to UV light.

If you add a pigment to the raw material, the profile will not be white, but any given color. As a result of all operations, a rectangular or trapezoidal tubular structure is obtained, within which there are from three to seven longitudinal isolated cavities. The reinforcing metal profile is located in the Central cavity.

When making window frames, the profile is cut into parts of the required length and connected by gluing or welding into a rectangular or other spatial structure. The outer part of the frame is cut from above and below, connecting the first external cavity of the "chamber" with the external atmosphere the holes are used for ventilation and condensate drainage. The other chambers are sealed and are not connected to each other or to the external environment.

Polyvinyl chloride (PVC) has a sufficiently low thermal conductivity to be considered a good thermal insulation material. But the presence of chambers filled with air inside the structure increases the energy-saving properties several times more. The more such cameras, the lower the thermal conductivity of the window frame, the warmer it will be in the house.

Modern industry produces profiles for Windows with a number of cameras from three to seven.

In mid-latitudes, it is necessary to choose profiles no lower than five-chamber ones, with at least four internal cavities.
Five-chamber window profile

Three-chamber units can be installed in warmer regions or in unheated areas warehouses, outbuildings, garages.

Three-chamber window profile

Six and seven-chamber profiles differ in increased weight, but do not give a sharp decrease in thermal conductivity. It is not advisable to buy them the Windows are more expensive, but about the same quality. It is better to install a wider double-glazed window the gain in thermal protection will be greater.

If there are an equal number of cameras, you must use a profile with an external wall thickness of at least 2.8 mm and an internal wall thickness of more than 2.5 mm. This is a type "A" profile designed for residential premises. Profiles "B" and "C" can only be used in industrial or technical premises where there are no special requirements for the microclimate.

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