What is the door and window profile?
Door and window profiles should be good insulators against sound and heat. 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 according to the Stahl standard it is divided into two types of round edge and sharp edge. 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 it was mentioned in the article about the types of profiles, the iron shield, like other iron profiles, is produced 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.
The best manufacturers of shields
Kian Persia, Jahan Profile Pars, Nabshi Shokfete and Sadra Profile can be mentioned among the most famous manufacturers of shields.
Five differences between corners and shields
* The bending strength of the shield is greater than the angle. * The cross-section of the shield is T-shaped and the corner cross-section is L- and V-shaped. * The shield has specific dimensions. But a corner can have equal or unequal wings. * A shield is used for connections that require high strength. * A shield is usually used to connect two faces.
What is a door hinge profile?
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.
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.