Analysis of Technical Problems of Insulated Aluminum Alloy Doors and Windows

The application of heat-insulating aluminum alloy doors and windows in Beijing has created a precedent in China. In 2001, the Sunshine 100 project was a model for the use of heat-insulating aluminum alloy doors and windows in large areas. However, in recent years, most of the projects use insulated aluminum alloy doors and windows, which are now incomplete. Statistics have exceeded the usage of 1 million. In future development projects, it is possible to continue to use insulated aluminum alloy doors and windows, especially some public building projects. Insulated aluminum alloy doors and windows have become the mainstream of choice. In reviewing the development of heat-insulating aluminum alloy windows during the past six years, there are still some deficiencies. The following analysis of the problems of doors and windows is carried out.

First, the sealing problem of aluminum alloy doors and windows: The larger problem of push-pull systems is the poor sealing performance.

In Beijing now, the mainstream of doors and windows is sliding windows. However, due to the simple and objective restrictions of the doors, most of them are sliding doors. However, there are some problems with simple sliding doors. Consider the heat convection inside a door. How big is it?

Example: When there is a four-level wind outside, you often hear the sound of the windows above the seven floors. The sound of the sliding door is not there, but the back of the hand is close to the edge of the dead sliding door. Feel the hair is blown, and it will feel cold in winter.

Now many projects will find that due to the lack of heat insulation in the casement windows, and the fact that some thermal insulation bars are also good at throttling, there are no sliding windows, so the use of simple sliding doors is actually an energy saving system for the entire building. In fact, a relatively weak link has formed. Speaking of windows and doors, the lock system often sees a single point lock system. In general, it must have a certain wind resistance. In the sliding door system, all the entire door lock wall is only a limit system, and it cannot make the door Free activities, simple push-pull systems are moving, can not touch the window frame, the entire sinking window frame does not form a pressure structure, this lock point in some sense theft is very fragile, can only Say there is the role of anti-theft, for the entire role, applicability has not improved.

Example: Someone asked Japan whether there are a large number of sliding windows or sliding doors in the cold climate. Japan’s requirements for energy saving are higher than those of our country. The major difference between Japan’s sliding window and sliding door system and the existing domestic system is the revolution of the sealing system, which is due to the fact that Japan is using a s Sealing is not only unique in material, but also in process and design.

In Europe, there are many uses for sliding doors, and the more common one is the introverted sliding door system. The Buick commercial vehicle is an introverted sliding door system. For a simple sliding door application, it may be computationally inefficient to use, due to the use of a heat-insulating substrate.

China's door and window inspection standards require that all opening seams completely ignore the influence of airtightness and do not test the airtightness of the entire frame system or the complete door and window system. This is essentially different from the European standards. The detection system in Europe is to send a complete window directly to the laboratory for experimentation. If the window leaks, the heat insulation will reach 40% and the test cannot be over. When China detects doors and windows, it still feels cold in winter.

Second, the design of aluminum alloy doors and windows defects: heat insulation aluminum alloy door and window system more than a layering

Domestically, there are two ways to put this layering in the room. One is anti-theft, and the other is disassembly. The second reason is that there is a complete existence, especially high-rise buildings. As for the anti-theft feature, it is completely unnecessary.

Example: In Australia, in New Zealand, it can be seen that a large number of windows are washed out. Experts from these countries understand this problem and replied: It is hard to imagine a thief removing a glass bead. This requires professional technology. .

An open window with hollow glass on the outside, insulation profile system must use two-way structural profiles, one-way can also be. If you can't make a big opening and a large number of hollow glass presses on the outside, it is difficult to divide the force into two points. The heat insulation aluminum alloy door and window system is a composite structure, and any link cannot be weak. As long as one link is weak, the entire frame system can play a role.

As a characteristic of the heat-insulating aluminum alloy door and window system, due to design defects, the structure has undergone a qualitative change and cannot be understood in the traditional installation of the home improvement process. This is a key point.

Third, the lack of acceptance of aluminum alloy doors and windows: the results of barbarism operation carried up 30 degrees position

In the transportation process of doors and windows, the doors and windows of the project are installed. When a door, window or window is unloaded, it will be found that there is basically no handle. During the transportation, there are bumps. If the bumps appear, it will be fatal to the handle. So there will be no such thing as a door and window factory.

When it comes to hardcover, we generally say hardcover is high-end housing, but the characteristics of the interior decoration workers: do not understand the doors and windows, often hardcover projects are selected high-end windows and doors system, and for the general decoration is not understood, until the end of the hardcover At that time, the small owners would find that the hardware of the doors and windows should have been closed and opened in this way, but it was later found that the handles were moved upwards by 30 degrees. When they opened, they moved up with their hands. This was the improper use of the built-in workers. The result of the operation. It is believed that it is difficult for most of the small owners to see their own windows and doors when they enter their homes.

Hardware is two major functions, one is the lock wall and the other is the load bearing. A system process, as doors and windows, from the factory to the site, design to transportation, installation, acceptance, including the replacement of problems, including the owner's personalized needs of doors and windows. Throughout the entire process, perfect expressions are required.

Fourth, aluminum alloy doors and windows bump problem: it must be resolved in time

When the aluminum alloy door and window sash is smaller than 650, the outside and the main strip will bump, and this bump is very deadly. What kind of sound is the bump? When I hear a slamming noise, the worker will solve it. He quickly hits his hand a few times. There is no sound. Why is it missing? It may be that the strip is knocked out. If this part is knocked out, the main seal of aluminum alloy doors and windows cannot be achieved.

The wind pressure resistance performance of doors and windows has always been relatively simple. Professional window and door factories must provide corresponding calculation books. The first two days to go to Shandong to see a project, to strengthen the Zhongting, must be a protruding piece above the rigid profile, but The protruding part must have a corresponding connection with the wall, and the two heads must be fixed. There is a problem when the deep part of the reinforcement is deep under the plane. If there is a head leaking out there and one head is fixed and the other end is shaking, this strengthening is absolutely necessary. Some of the profiles are bought for money and lose their meaning if used improperly.

As a professional responsible door and window factory, for the outer hanging window, the angle of the opening of the friction hinge should be stipulated. It is a problem that the wind is blown off, but some are closed and blown off. The friction hinge is the load bearing. If the wind is lifted upwards, it is easy to be blown away. When the supplier provides this product, there should be some restrictions on the opening angle.

For high-rise buildings, the strength design of the glass bead must also be stipulated. The other is airtightness. The key point of Beijing's architecture is the airtightness of doors and windows. The wind difference in Beijing is relatively large.

Example: If there is a dust storm in the north, the people of the north go to work and come back to rub on the windowsill in the evening. There is no dust. This is a good window.

How to ensure the airtightness of doors and windows, all the processing and installation parts, for the hardware factory, must provide lapping position can be adjusted, but the stereotypes are often not enough, focusing on quantitative things, valuable things, there are two millimeters The above adjustment range is still valuable. If you use the developer's introduction to adjust 0.5 millimeters, that is no adjustment. The whole three-dimensional adjustment is easy to move, if such a hardware store, this can be adjusted, but before and after adjustment, it is understood to prevent this window from losing foot effectively, but how to ensure the parallelism of the window, there are two aspects of adjustment How much can you adjust by the previous one? The second is how to adjust, this is more critical.

In order to improve the airtightness of doors and windows, a door and window factory has also sealed the outside, but it must be done to balance the air pressure. If it does not go out, the water inside cannot go out. The pressure inside is low, and the outside pressure is high, even if it is open. A hole does not allow water to go out. It can be sealed in three ways, but it must be balanced. If it is not left, it will have no effect. The combination of heat-insulating aluminum material is the device's lamination. When the rain falls, the window is not leaking. However, the outside rain has stopped, and there are traces of imprinted water in the area where the window and wall are combined. If there is such a phenomenon, we must consider the drainage. Whether the channel is smooth or not.

Once again, attention is paid to the bumping of doors and windows. Once the doors and windows are knocked on, it means that the connection between the sashes is broken. To find this reason, if the sight is not met, it is very dangerous. A lot of project doors use three hinges, we must pay attention to the third hinge seat, the same is to buy things, but will not be used to buy, buy is not the purpose, the purpose is to ensure the perfection of the doors and windows, but the use of Bad cannot guarantee. Just talked about the insulation of aluminum alloy door and window bump phenomenon must be resolved in time, if the owner does not ring after using a month, may be cut off the tape, must not ignore this issue.

Of course, the opening method is a certain regularity and technicality. The water-tightness of doors and windows in the south, such as Shanghai, later discovered that it is necessary to talk to the manufacturers in Shanghai about watertightness. The main sealant construction is to use one-piece glue. Article, but can not be pasted, such processing of the edge of the seal is also unreasonable, it should be a complete strip pressed into the 45-degree paste.

Including Europe's perfect angulation process, the design of drainage channels is also very important. Understand a window, a system of the entire drainage channel flow, can know what is inside this window, where the water flow.

Once there was a technical exchange between the Sichuan Province Door and Window Industry Association, and some teachers said that there was no need for glue strips. I couldn't say that people in Chengdu could not say this. Chengdu people have a building that has been used for thousands of years. This is Dujiangyan, this is a blockade. No, it is not a dam. It is just a diversion project. In 2005 and 2006, we saw that the 14.8 insulation profile merchant gradually faded out, 18.6, and 24 width insulation bars appeared slowly, the entire profile supplier changed from 0 to 6 now, and the insulation aluminum window noise reduction It is also good that, in the national Olympic swimming pool project, the major technical problem is not a structural problem. It is because this film rain has a great voice. This problem of how to solve the noise itself is also a perfect solution. If the window is under a bathtub or a toilet, the window is better with a pull window. With a toilet and a bathtub, it means that you have a certain distance from the window. This time, you have to consider the type of opening. Last year began. There are certain regulations on the fire and smoke exhaust of curtain wall windows.

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