With the development of the national economy, China's modern building doors and windows industry has also entered a booming era. With the continuous improvement of people's living standards, people have put forward higher requirements for the living environment. The safe, comfortable and clean living environment is increasingly favored by the public. Doors and windows are the opening parts of the building's outer protective structure. They are extremely important functional parts to resist the wind and dust, realize the physical properties of building heat, sound and light environment, and have the effect of double decoration of building facade and indoor environment. It is directly related to the safe use of buildings, comfort and energy conservation, and the improvement of people's living standards. It must have various functions such as lighting, ventilation, weatherproof, heat preservation, heat insulation, sound insulation, dustproof, insect proof, fire prevention, anti-theft, etc., in order to provide people with safe and comfortable indoor living environment; at the same time, as a building exterior wall and indoor Part of the decoration, its structural form, material texture, surface color and other appearance effects play an important role in the aesthetic coordination of the interior and exterior of the building.
However, what role does the door and window hardware play in the doors and windows? People are often misled by the "fit" of the "accessories", which becomes a supporting role in the doors and windows in the heart, which is essentially a misunderstanding.
Second, hardware accessories are the key components that determine the performance of doors and windows
The design of the aluminum door and window is firstly the architectural design of the door and window performance to meet the functional requirements of the building, and the performance of the aluminum door and window and related design requirements are reasonably determined. When designing doors and windows, it is from the beauty of the whole house and the area where it is resistant to wind pressure (the term "wind pressure" is provided by the industry encyclopedia), water tightness, air tightness, heat preservation, heat insulation, sound insulation, etc. Several performance considerations (now Beijing, Guangdong and other regions have regional specifications, the corresponding building doors and windows have been required to meet the corresponding requirements). Imagine, according to the physical properties of the doors and windows (wind resistance, water tightness, air tightness, sound insulation, heat insulation, heat insulation, etc.) and mechanical properties (opening force (entry "opening force" by the industry Encyclopedia provides), repeated opening and closing) Which one has nothing to do with the hardware of the door and window?
The hardware accessories are the components that are responsible for closely connecting the frame of the door and window with the fan. Without it, the door and window will only become a dead fan, and the meaning of the door and window will be lost. We analyze the effects of hardware accessories on doors and windows from the performance and function of doors and windows:
1. Physical and mechanical indicators of doors and windows include: wind pressure resistance, air tightness, water tightness, heat preservation, heat insulation, sound insulation and wind pressure resistance.
When the inner casement window (the entry "opening window" is provided by the industry encyclopedia) is subject to positive wind pressure; the hardware lock point is stressed, so it is advisable to adopt multiple lock points. The more the lock points, the smaller the force of each lock point to the middle, and the relative deflection of the deformation is small.
When the inner casement window is under negative pressure: the frame is stressed.
When the outer casement window is pressed: the lock point is stressed, so it is better to use multiple lock points. The more the lock points, the smaller the force of each lock point to the middle, and the relative deflection of the deformation is small.
When the outer casement window is subjected to positive wind pressure: the frame is stressed.
The above can be seen that the effect of hardware accessories on the first performance of wind and pressure resistance of doors and windows determines the success or failure of doors and windows; likewise, the airtightness, watertightness, heat preservation, heat insulation and sound insulation are all related to the doors and windows of hardware accessories. Sealed. Hardware lock points and lock seats are distributed around the entire door and window. When the door and window are locked, the lock point and the lock seat are firmly fastened together, and the hinge (the term "hinge" is provided by the industry encyclopedia) (hinged blade) or the sliding support cooperates to generate a strong sealing pressing force. The elastic deformation of the sealing strip provides sufficient sealing performance for the door and window, so that the fan and the frame are integrated to greatly improve the performance of the door and window. Similarly, the door and window folding mechanical performance indicators (opening and closing force, repeated opening and closing), and other opening and closing requirements are also inseparable from the requirements of hardware accessories.
2. Doors and windows are lightweight components, and their energy consumption accounts for more than half of the building energy consumption (the term “building energy consumption†is provided by the industry encyclopedia). It is the top priority of building energy conservation and should be fully considered in design. The energy saving problem of doors and windows, that is, heat preservation and heat insulation. If there are no multi-point lock hardware accessories, the doors and windows do a good job, and its insulation and heat insulation can be imagined.
3. Similarly, the anti-theft performance of doors and windows is also the most concerned issue for owners. In this respect, the anti-theft performance of hardware accessories, especially in the development of intelligent security doors and windows components play an important role.
4, doors and windows have a variety of window shapes and structural forms, and the various functions of the window type all depend on the configuration of hardware accessories. Imagine, there is no hardware fittings, how to realize the function of flat opening and inner turning in the swinging and lowering hanging window? How to realize the function of pushing and pulling and folding in the folding and folding window and door? Inverted pulling, moving louver, etc., which is not by hardware Does the accessory function to achieve its unique specific function?
It can be said that hardware accessories are the "heart" of door and window accessories.
For a long time, people's understanding of door and window hardware accessories is only considered to be a secondary non-functioning thing, and the result is "disastrous." Many door and window, curtain wall companies (including some of the first-class qualifications), design institutes and owners have a greater understanding of the main role of door and window hardware accessories. As a result, in the design, the size of the grid is often too large, or the weight of the window is increased, and the configuration of the hardware is arbitrarily changed, resulting in insufficient wind pressure, watertightness and airtightness. Such examples are not uncommon. I often say: I use insulating glass, high-grade aluminum, why can't I make high-end windows? This is not worthy of hardware accessories. I have seen a famous curtain wall company with first-class qualification. In the design and construction of the real estate, only a seven-handed lock is used (the entry "handle lock" is provided by the industry encyclopedia) to close a large-sized outer open window, and in order to save costs, no lock hook is needed on the sliding door. The groove is directly milled on the profile, which seriously damages the appearance of the window.
Third, the door and window system door and window industry is actually the last standard industrial chain structure.
A ring is buckled to form a chain mechanism. For example, after decades of development in Europe, the door and window industry has formed a branded system industry. There are no systematic windows and doors, which can be said to be difficult in Europe. The door and window system has been regarded as the core competitiveness of the company by European door and window companies. Its value is like the brand effect (like Haier, etc.), which represents the guarantee of quality and performance, and is immeasurable. So what is the door and window system? That is, the doors and windows should have good physical and mechanical performance through the relevant standards testing requirements, to meet the various requirements of the market, the effective coordination and management of the supporting industries, and effective cost performance.
Like foreign hardware companies: Schüco, Aruk and other companies have their own mature system, which is how many years they have been groping and researching.
Look at the domestic market: After many companies don't see some foreign fur, they will see the whole leopard in a glimpse of the whole leopard. Regardless of the actual situation, they will also make some systems. As a result, the physical and mechanical properties of the doors and windows of this system are But do not do in-depth research.
Practice has proved that a mature door and window system has to undergo long-term practice test, it is to be repeatedly tested and demonstrated through design, application, summary, modification, re-application and re-sumulation.
For example, some aluminum door and window factories only consider Party A's requirements, do not want to configure the hardware accessories, and after pursuing small, light and thin results, the existing hardware accessories can not be matched with the equipment, and can not meet the industry standards and technologies. The requirements of the procedure. This situation illustrates the consequences of lack of coordination and corresponding system concepts.
Fourth, China's situation China's vast territory, while trans-tropical, temperate, cold, desert and coastal climate, both plains and mountains, hills, diverse terrain, climate change.
Like the typhoon in the northwest, it is more typhoon, which requires the wind and pressure resistance of the doors and windows to be better. Like the hot weather in the south, it requires better insulation of doors and windows; like the cold weather in the northern region, the wind is small. It is necessary to keep the insulation performance of the doors and windows better; after the SARS, it is necessary to pay special attention to the ventilation performance. This determines that China may use a system or a few systems to unify the national window. Since the 1990s, most of the domestically introduced standard notches of 20 Euro standard troughs have obtained the German A0004 standard notch, which has resulted in the situation of German hardware accessories in the market. The realization of the European companies on different sizes of window types is divided into several types of material slot forms according to the actual situation. The country's door and window market has its special situation. From the aluminum doors and windows of the 1980s, a detour, the introduction of a large number of plastic windows in the 1990s, and today's aluminum doors and windows are once again vigorously lifted, showing the great potential of the Chinese market.
In recent years, with the strong driving of domestic infrastructure, the door and window industry has provided a new economic growth point. Due to the improvement of technology and technology, doors and windows, especially like heat-insulating aluminum and electrophoretic sprayed aluminum doors and windows, have become new growth points. The diversified development of the window design of the real estate community and the diversification of the window type design provide an opportunity for the diversified development of the door and window system. China has a large number of doors, windows and hardware accessories companies. Most of them are small in scale, low in concentration and backward in equipment. They are still small-scale workshops. It is difficult to form a system concept and needs to be resolved.
At present, our country urgently needs to improve the performance and production process of doors and windows, and integrate with the international community as soon as possible. This is the technical level that needs to strengthen the hardware of doors and windows as soon as possible. Therefore, we must raise awareness in the concept and raise the position of the hardware accessories in the hearts of the people as soon as possible. The important position, the only way to truly improve the performance and functionality of doors and windows.
Five, the real technology and the system supporting the doors and windows
The engineering door and window hardware accessories are both static and dynamic, and must be satisfied at the same time, which has essentially determined the delicateness of the door and window technology. At many exhibitions, we saw many famous companies' doors and windows, which are quite good in appearance. Electrophoretic aluminum, even fluorocarbon-coated aluminum, is equipped with insulating glass, with bright colors and various styles. However, the sand is flexible, the sway is large, and the heat is unreasonable. This is the result of not paying attention to hardware accessories. So what kind of functions should real door and window hardware have? In addition to meeting the physical and mechanical properties of doors and windows, the following conditions must be met:
(1) Convenient operation, single point control: realize various opening functions by changing the position of the handle of the handle;
(2) Standardization and serialization, enabling door and window enterprises and construction companies to install quickly;
(3) adjustability;
(4) Strong bearing capacity;
(5) High security;
(6) Wide range of applications;
(7) Strong applicability (high quality specifications).
In order to ensure the excellent quality of doors and windows, high-end door and window hardware accessories are basically made of precision molds (the term "mold" is provided by the industry encyclopedia), with a high degree of automation, and the materials are made of stainless steel and aluminum alloy under the premise of strength. The term "aluminum alloy" is provided by the industry encyclopedia), zinc alloy (the term "zinc alloy" is provided by the industry encyclopedia), and high-quality engineering plastics (the term "engineering plastic" is provided by the industry encyclopedia). Some factories used plain carbon steel to make it cheap, and it started to rust in a few months. What's more, only one interest, the material and configuration are changed at will, leaving serious security risks to the doors and windows. And when high-precision hardware is combined with high-precision profiles, it does not necessarily make a good door and window. The combination of good hardware and good profiles is the result of the door and window company making great efforts in system engineering design and production, and coordination with all relevant parties, especially hardware accessories.
There are many times when we often hear people complain that doors and windows are not flexible, just blame hardware accessories. However, other problems have been neglected, such as the quality of the strip, the quality of the profile, the accuracy of the notch (such as the size of the notch should be the size after surface treatment), and the machining accuracy of the group angle. The quality of doors and windows is determined by a series of complete quality assurance systems. The production of doors and windows must pay attention to the system engineering of each production link, especially to fundamentally change the contempt for hardware accessories.
Sixth, the conclusion
Door and window hardware accessories are capital and technology-intensive industries in the developed countries in the West. However, China's door and window hardware industry generally has insufficient funds and weak technology, and it still belongs to labor-intensive industries.
This gap between China and developed countries in door and window hardware is shrinking. With the improvement of living conditions for Chinese people, the demand for door and window hardware accessories will become larger and larger, and it will develop towards high-end. The development of door and window hardware accessories has a broad space. People are constantly pursuing higher quality and higher quality doors and windows, which provides endless imagination for the development of hardware accessories. Only by following the direction of the market, can we continue to push the doors and windows to one peak after another.
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