Chapter 1. SIMPLE CONSTRUCTION

1.1. The general concepts and definitions

With a variety of metal-plastic designs, we can identify two basic concepts upon which the rest will be created. These two concepts - window and door design.
To understand, which is a window, as it is manufactured, assembled and operated, it is necessary to immediately determine the terms used by manufacturers of metal-plastic (not just metal-plastic) structures to determine its individual parts. So call these parts and try to define each of them (Figure 1.1.1).

Fig. 1.1.1 Standard of the window

These parts can be (any combination) to be present in different window or door products, such as metal-plastic or wood or aluminum. Now consider the components it is metal-plastic windows.

1.2. The composition and classification of metal-plastic structures

Rama, leaf and the impost of Aluminum construction are made from polyvinyl profile, ie gaunt products inside emptiness with. This emptiness (or camera) to reduce heat transfer, as well as the reinforcement, ie fill the chamber of reinforcement to increase the moment of inertia profile. Thus, the reinforcement - metal profile that is inserted into the metal-profile to increase its moment of inertia. As the camera each type of plastic profile has certain dimensions, the reinforcement of plastic inserts a certain profile.
In KVE each profile assigned serial number (product). For example, for the manufacture of window frames, are used plastic profile art. 707 and the reinforcement of the art. 207.
In simple Aluminum structures called Aluminum construction with a Frame circuit.
Now try to enter the classification of metal-plastic designs (Figure 1.2.1)

Fig. 1.2.1 Classification of metal-plastic designs.

Window design constructed from the following profiles - frame art. 707, leaf art. 317, impost art. 132 or art. 732. Of course, this is by no means all options, but in the enterprise window products manufactured exactly one.

What are the windows and balcony doors? Yes virtually nothing, except a small part of fittings - balcony door latches and completed balcony handle smoker. Beginners managers often make mistakes in determining the balcony doors, believing that high and on the fairway is narrow window might be called the balcony doors because of their shape. To avoid such mistakes should immediately determine that distinction.
In contrast to the window frame, door frame is one additional element - an aluminum threshold. This element is fixed at the bottom of the frame with a special connector threshold. Thus, even if the product is produced from the frame of art. 306 ( door frame), but does not have an aluminum door (art. 798) - This window product.
As the leaf at the door are using art. 715 (for entrance) and art. 519 (for interior doors). Profile of 715 broader and more difficult. As an impost door products used the same familiar items - 132 and 732.
As already mentioned, some kind of plastic profile is completed by a certain type of reinforcement profile, so bring items reinforcing is not necessary.

The next element is the product of window glazing. There is a need to introduce yet another concept - glass-packet.

Double-glazed windows (ris.1.2.2) is a product consisting of (at least) two glasses and a remote frame (at least) between them. All parts of the «sandwich» glued between a primary sealing (hot meltom), and the face of the embedded secondary sealants (butyl), which provides leak insulating glass unit and the impossibility of entering into the inner chamber air dry. Compared with conventional single-glass, glass-packet has a much lower thermal conductivity, provides heat in the room.