You must have looked out of the window on a rainy day, and the question came to you, how are the windows made? Do you know the difference between security and public profile? To answer this question, we must say that in general, doors and windows are made of sections called door and window profiles. They are a group of profiles and in addition to doors and windows, they have many other uses in construction.
To learn about the types of profiles, you can refer to the article about the types of profiles. But in this article, we want to examine the profiles used in this important part of the building, i.e. door and window profiles. They are a group of profiles that, as their name suggests, are used in the construction of doors and windows.*** What is the door and window profile?
Door and window profiles should be good sound and heat insulators. The insulation level of these profiles is determined by the number of chambers in them, which have a direct relationship with each other. Similarly, door and window profiles should have good resistance against wind and rain. On the other hand, these profiles are also capable of welding and drilling.
*** Types of door and window profiles in terms of cross section
Door and window profiles are divided into eight groups based on their size. But it is interesting to know, among them, the most common ones are in two groups number two and seven. Group profiles have two more general uses. But group seven profiles are used in security cases. Naturally, the profile prices in these two groups are different from each other.
Profiles of group two include shields (507), door frames (508) and frames (509) and profiles of group seven include shields (567) and (767). , door frame (768) and frame (769). The difference between these profiles is in the shape of their cross section, which we will explain each one below.
*** What is a shield profile?
This closed profile has a T-shaped cross-section and the most common raw material for its production is ST37 steel. The shield is produced in thicknesses of 2.5-0.9 mm and according to DIN EN 10055, DIN 59051 and DIN 1022 standards, the thickness of 2 mm is more widely used. The standard length of this profile is 6-12 meters and it is divided into two types, round edge and sharp edge, according to the Stahl standard. The size of the round edge type is 30-140 mm and the size of the sharp edge type is 20-40 mm. Shields are named in such a way that when it is said that the score of a shield is 10, it means that its edge size is 100 mm. Among the most important mechanical properties of the shield is that the shield has low bending resistance.
*** Shield production methods
As mentioned in the article about types of profiles, the iron shield is produced like other iron profiles by hot rolling and cold rolling.
Hot rolling: This method, which is also known as the fabric method, first the steel ingot is heated and then rolled after reaching the desired temperature. During the rolling operation, its thickness decreases and its length increases. Finally, by passing through the middle and end rollers, it becomes a shield and then it is cut into desired dimensions with cutting devices. Chopped and small pieces of shield are called bite. The quality of the profile in terms of dimensions of the shield produced by the hot rolling method is better than the cold rolling method. Because the technology and devices used in the hot rolling method are more advanced. Cold rolling: In the cold rolling or pressing method, the section of the beam is divided into two parts in the middle, and in this way a shield is produced. This method of shield production is not very common and in cases where it is not possible to use the hot rolling method, this method is used.*** What is the door profile?
These double-edged profiles are used in the construction of frames. The thickness of the door leaf profile is 2-4 mm and its length is 6-12 mm. Door hinge profiles are included in the group of closed profiles.
*** What is a frame profile?
The frame profile is used in the construction of the door frame for wooden and MDF doors. These open profiles are generally produced by cold rolling and are single-edged. Their thickness is 2-2.5 mm and their length is 6 mm. The frame profile is produced in four types: Roman, French, Mexican and simple.
*** Types of door and window profiles in terms of material
Door and window profiles are sold in galvanized, steel, aluminum, composite, wooden and iron types.
*** Aluminum profile, the most used door and window profile
In general, aluminum door and window profiles are cheaper than iron profiles and more expensive than non-metallic profiles, and they are widely used in making double-glazed windows. These profiles, which are widely used as aluminum partition profiles in addition to doors and windows, have good strength and therefore can be designed narrower for more beauty and elegance. Aluminum profiles, while being strong, also have good flexibility, and because they can be recycled, they are environmentally friendly products.
But they are not a good option for saving energy. In making these profiles, due to the high sensitivity of welding, strong adhesives are usually used for connections. Aluminum profiles can undergo operations such as polishing, brushing and anodizing after production. You can also apply a powder coating on them.*** composite door and window profile (PVC-UPVC); A safe choice
Today, PVC and UPVC door and window profiles are very popular. UPVC door and window profiles are made of thermoplastic materials and are a combination of petroleum and salt materials. They have more variety than their iron counterparts and are usually produced by extrusion. The thickness of these profiles is 2.3-8.2 mm. Production of these non-metallic profiles, besides being economical, also has higher safety. These cases have drawn the attention of engineers and designers to this category of profiles. Other advantages of UPVC profiles include ease of maintenance and cleaning, ease of installation due to their lightness, high resistance to ignition and corrosion, washable, high strength, favorable surface quality, and high durability of their color and coating. . These profiles are also good thermal insulation, and as a result, they can perform optimally and optimally in energy consumption. They are also recyclable and do not harm the environment.
*** The difference between PVC and UPVC door and window profiles
UPVC profile is an optimized type of PVC profile and is better insulated against sound and heat. A lubricant is used in PVC, which makes it flexible. But in UPVC, no lubricant is used, and because there is not much flexibility in the door and window profile, so using UPVC is preferable to PVC.
*** wooden door and window profile; Suitable for luxury buildings
In addition to being a good insulator against heat and sound, these profiles also add beauty and a special effect to the building. They also have good color adaptability. But on the other hand, they also have disadvantages, such as high flammability, decay, low impact resistance, and the penetration of insects and termites in them. Another disadvantage of wooden door and window profiles is the absorption of water and moisture. For this reason, they are not widely used, especially in wet areas.