Sealing Issues Of Aluminum Alloy Doors And Windows

The biggest problem with the push-pull system is its poor sealing performance
In Beijing, the mainstream of doors and windows is still sliding windows, but due to the simplicity and objective limitations of doors, most of them are still sliding doors. However, there are some problems with simple sliding doors. Imagine the impact of thermal convection inside and outside a door?
In many projects, it will be found that casement windows have insufficient insulation materials, and some with good insulation strips may have throttling effects, but sliding windows do not. Therefore, the use of simple sliding doors actually forms a major weakness for the entire building energy-saving system. When it comes to the lock system of doors and windows, we often see a single point lock system. Generally speaking, it must have a certain degree of wind resistance. In a sliding door system, all the lock walls of the entire door are only a limit system and cannot allow the door to move freely. Simple sliding and pulling systems are movable and cannot move when they touch the window frame. The entire sinking window frame does not form a pressure structure, and this lock point is in a sense very fragile against theft, It can only be said that it has the function of anti-theft, but for the entire function, its applicability has not improved.
In Europe, there are also many uses for sliding doors, with the most common being the inward tilting sliding door system. A Buick commercial vehicle is a tilting sliding door system. For the application of simple sliding doors, it may be computationally feasible to insulate due to the use of insulation substrates, but it is detrimental to the actual use.
The Chinese door and window inspection standards require that the impact of air tightness be completely ignored for all opening joints, and the air tightness of the entire frame system or complete door and window system should not be tested. This is fundamentally different from European standards. The European testing system directly sends a complete window from the opening to the laboratory for testing. If the window leaks air, the insulation reaches 40%, and the testing cannot pass. When using China to detect doors and windows, winter still feels cold.