With the continuous development of society,broken bridge aluminum alloy windows and doors are more and more widely used in decoration.broken bridge aluminum alloy windows and doors are aluminum doors and windows made of thermally insulated broken bridge aluminum profiles and insulating glass, which have outstanding sound insulation effects, Dustproof and waterproof, etc., So, are there any disadvantages for such a good performance of broken aluminum doors and windows?
Advantages ofbroken bridge aluminum alloy windows and doors:
1. Reduce heat conduction: The use of insulated bridge-broken aluminum alloy profiles and hollow glass structure effectively reduce the heat conduction through doors and windows.
2. Prevent condensation: The temperature of the inner surface of the profile with heat insulation strips is close to the indoor temperature, reducing the possibility of indoor moisture condensation on the surface of the profile due to oversaturation.
3.Energy saving: In winter, window frames with thermal insulation strips can reduce 1/3 of the heat lost through the window frame; in summer, if it is air-conditioned, the window frames with thermal insulation strips can Reduce energy loss more.
4.Protect the environment: Through the application of heat insulation system, energy consumption can be reduced, and the environmental radiation caused by air conditioning and heating can be reduced at the same time.
5.Good for health: The heat exchange between the human body and the environment depends on the temperature of the indoor air, the air flow speed and the temperature of the outdoor air. The most comfortable environment has been achieved by adjusting the indoor temperature of doors and windows so that it is not lower than 12～13℃.
6.Noise reduction: The use of hollow glass structures with different thicknesses and a cavity structure of thermally insulated aluminum bridges can effectively reduce the resonance effect of sound waves, prevent sound transmission, and reduce noise by more than 30dB.
7.Colorful colors: aluminum profiles of different colors can be produced after surface treatment with anodizing, powder spraying, and fluorocarbon spraying. After rolling and combining, the insulated aluminum alloy doors and windows can produce indoor and outdoor two-color windows with different colors.
Disadvantages of broken aluminum doors and windows: complex production and expensive.
It can be seen from the article that there are still many advantages of broken aluminum doors and windows, including reducing heat conduction, preventing condensation, reducing noise, etc., reducing energy loss can also protect the environment and benefit physical and mental health. Of course, everything is There are two sides. Although it has so many advantages, it also has its disadvantages. It is not easy to make, and the combination of advantages and disadvantages also indirectly leads to its price is not cheap.
]]>The reason why aluminum alloy doors and windows occupy the largest market share is that in the vast cities and towns of my country, aluminum alloy doors and windows have been developed for a long time and a wide range. At the same time, through the development of recent years, aluminum alloy doors and windows have solved the problems in the early stages of development. Such problems are more and more favored by customers for its corrosion resistance, high strength, light weight, and good decorative performance. So what are aluminum alloy doors and windows and how are they defined?
Doors and windows made of aluminum alloy extruded profiles as frames, stiles, and fan materials are called aluminum alloy doors and windows, or aluminum doors and windows for short. Including aluminum-wood composite doors and windows that use aluminum alloy as the base material of the load-bearing rod (the rod that bears and transfers its own weight and load) and wood and plastic, referred to as aluminum-wood composite doors and windows. The quality of aluminum alloy doors and windows can be roughly judged from the selection of raw materials (aluminum profiles), aluminum surface treatment and internal processing quality, and the price of aluminum alloy doors and windows.
- Materials
The thickness, strength, and oxide film of aluminum profiles used for high-quality aluminum alloy doors and windows should comply with relevant national standards. The wall thickness should be 1.2 mm or more, the tensile strength should reach 157 Newtons per square meter, and the yield strength should reach per square meter. 108 Newtons per square millimeter, the thickness of the oxide film should reach 10 microns. If the above standards are not met, the doors and windows of inferior aluminum alloy cannot be used.
- Processing
High-quality aluminum alloy doors and windows, fine processing, careful installation, good sealing performance, and easy opening and closing. Inferior aluminum alloy doors and windows, blindly select aluminum profile series and specifications, processing indiscriminately, using sawing instead of milling, not installing as required, poor sealing performance, uncomfortable opening and closing, not only leakage of wind and rain, glass explosion, but also In strong winds and external forces, it is easy to scrape or knock the sliding parts or glass off, destroying objects and injuring people.
- Price
In general, due to the high production cost of high-quality aluminum alloy doors and windows, the price is more than 30% higher than that of inferior aluminum alloy doors and windows. Some aluminum alloy doors and windows made of aluminum profiles with a wall thickness of only 0.6-0.8 mm have a tensile strength and yield strength that are much lower than the relevant national standards and are very unsafe to use. In addition, there are many self-employed people who process aluminum alloy doors and windows, and they do not understand the structural characteristics and performance of aluminum alloy doors and windows. In order to reduce the cost and cut corners and shoddy materials, the product has a greater hidden danger and is generally not suitable for use. It is best to choose products from regular aluminum alloy doors and windows manufacturers. Here is a special note: the current national standard profile thickness is 1.4mm, if the supplier chooses 1.2mm or 1.0mm wall thickness or even thinner materials, they are all substandard products, please buy Attention.
Aluminum alloy windows and plastic steel windows are compared in several aspects:
First, in terms of price, aluminum alloy windows are more expensive than plastic steel windows, but the consumers of aluminum alloy windows are much larger than those of plastic steel windows. This is the angle of aesthetics and durability, so they prefer aluminum alloy windows.
Second, the sound insulation effect of plastic steel is of course better than aluminum alloy, but the broken bridge material of aluminum alloy in the current market can also achieve sound insulation effect, which is also the reason for consumers to choose.
Third, the style of plastic steel window style is relatively less, generally see more tooling, home decoration in order to show personality, generally choose a variety of aluminum alloy window.
The price of aluminum alloy doors and windows is determined according to the wall thickness of the material, generally 1.2 wall thickness of aluminum alloy material is about 5 kg / square meter, now the price of aluminum alloy is about 25 yuan / kg, the price of each place is different, add accessories installation, then 200 yuan per square meter, year-on-year, aluminum alloy is definitely more expensive, aluminum alloy is not easy to aging, deformation.
The plastic steel window material is made of PVC material with built-in steel structure, so the outer surface is PVC material with high thermal conductivity, so the thermal insulation is improved.
When your windows and doors are not in normal use, your aluminum alloy windows may face the option of repair or replacement.
Knowing four common aspects can help you make informed choices.
Unqualified installation.
Whether the installation of windows and doors is standard or not will directly lead to the use effect and service life of doors and windows. Non-standard installation must be paid attention to.
In judging whether the installation of windows and doors is standard or not, it is mainly evaluated from five aspects: door sash, window sash, frame, lock and use, and it mainly remembers several standard values:
(1) Joint gap should be less than or equal to 1mm.
(2) The allowable deviation of the verticality of the front and side of the door and window frame is 2.5mm.
(3) The horizontal allowable deviation of the horizontal frame of windows and doors is 2mm.
(4) The allowable deviation of the horizontal frame elevation of windows and doors is 5mm.
(5) The allowable deviation of vertical deviation from the center of windows and doors is 5mm.
The strength of the profile is not enough.
The strength grade of aluminum alloy is divided according to the indexes such as tension, yield, hardness and so on.
The strength is not strong enough to be prone to deformation and damage in severe weather such as typhoon, which is a great threat to the safety of users’ lives and property.
Generally speaking, consumers can observe with the naked eye, press with hands, shake and other methods, basically can identify whether the strength of door and window materials is enough.
Poor quality of accessories.
Accessories as an important part of the safety of doors and windows, good hardware accessories are standard for good doors and windows, and good hardware accessories are more expensive.
In the actual real estate development, many developers generally use relatively cheap hardware accessories in order to reduce the cost of doors and windows.
Hardware accessories feel poor, not to mention poor quality, easy to rust, easy to break, resulting in falling fan injury and other safety accidents occur from time to time.
Poor performance of doors and windows.
The basic functions of doors and windows are ventilation, lighting and rain protection, which is the most fundamental concept of door and window design at present, but due to environmental reasons, more people will upgrade their requirements for doors and windows, such as heat insulation and mute, and then upgrade to overall beauty and permanent deformation.
Good doors and windows make your living environment more safe and beautiful, make you feel happy, better reflect your pursuit of quality of life, and promote your interpersonal circle.
For owners who pursue high quality of life, good doors and windows are the basic configuration of a comfortable living environment.
Good windows and doors are inseparable from good aluminium and good hardware
Broken bridge aluminum windows and doors, as the most mainstream windows and doors products, has become a widely accepted material for windows and doors, so how long can they be used?
How long is its life? in Germany, we can still see windows and doors that have not been changed for 50 years, so how long do the current broken bridge aluminum windows and doors last?
There are two keys that affect the service life of broken bridge aluminum windows and doors: one is the quality of aluminum and the other is the quality of hardware.
1.aluminum quality: high-quality broken bridge aluminum windows and doors often choose to buy domestic high-grade aviation grade aluminum, the material in the wall thickness in line with the national standard. 14 MM, is followed by the material surface treatment technology, high-quality broken bridge aluminum windows and doors profile surface treatment smooth, smooth, high finish, paint film thick.
The color shedding of aluminum will not occur in the service life of 20-30 years.
And inferior aluminum, mainly some mixed brand aluminum, the material thickness is lower than the national standard, is non-standard material, there is poor surface treatment process, thin paint film, this broken bridge aluminum material can be used for 5-10 years will appear color shedding phenomenon.
2.hardware quality: a windows and doors in the selection of high-quality aluminum, of course, can not do without good hardware, high-quality aluminum with good hardware, the window service life is greatly extended, usually the common high-quality hardware on the market are: Germany Silia, Germany Schlegel, Hobo, grid, Jianlang, etc., it is not recommended to use the original factory hardware or their own brand hardware.
The market price of this kind of hardware is only tens of yuan a set.
If you choose high-quality aluminum at a high price, but with the so-called original hardware or the same hardware as the aluminum brand, it is a pity to tell you that the service life of the window will be reduced; this is like we bought a first-class anti-theft door but equipped with a low-level lock core, it also can not prevent thieves, there is a good door but the lock core is not good.
High-quality broken bridge aluminum materials with high-quality windows and doors hardware, then your broken bridge aluminum windows and doors can be used for 20 or 30 years, the so-called good horse with a good saddle, good windows and doors are of course inseparable from good aluminum and good hardware.
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Wood-aluminum doors and windows are very popular nowadays, compared with other doors and windows, aluminum windows and doors can be described as the “aristocracy” of doors and windows.
So, what is the difference between wooden aluminum doors and windows and other doors and windows?
Why are you so “aristocratic”?
1.Energy-saving type (thermal insulation).
There is a professional term in the world of doors and windows: heat transfer coefficient K value (also known as conductivity coefficient or insulation coefficient).
It is the most professional technical parameter to measure the thermal insulation of doors and windows. compared with other types of windows, aluminum doors and windows have outstanding thermal insulation performance.
Therefore, aluminum doors and windows are more energy-saving.
Therefore, although the price is slightly higher at the time of purchase, in the long run, using aluminum doors and windows can save you heating bills in winter and air-conditioning electricity bills in summer.
After such careful accounting, do you still think the price of aluminum doors and windows is expensive?
Cymbals.
2.Soundproof privacy.
Aluminum doors and windows can better block the external noise, and the sound insulation performance is better than other types of doors and windows.
- Fireproof performance.
In case of fire, the transmission of high temperature is slow, and the speed of fire transmission is slower, and doors and windows are not easy to cause a bigger fire due to high temperature explosion. - Long service life.
Doors and windows are not fast-moving consumer goods, so the service life of doors and windows is required to support the existence of the family.
Other types of windows, after long-term use, hinge, handle rust, a great impact on beauty and daily use.
Anti-wind pressure strength and water tightness:
Due to the low material strength and steel, plastic steel windows and door are strengthened by lining, but their wind pressure resistance and water tightness are about two grades lower than those of aluminum alloy windows and door.
The standard sample window submitted by the enterprise for inspection is like this, and so is the sampling at the construction site.
The average value of “three properties” of aluminum alloy windows and door and plastic steel windows and door installed at the construction site by Shanghai Building Curtain Wall testing Center shows that: “except for air tightness, the water tightness and wind pressure resistance of plastic steel windows and door are worse than those of aluminum alloy windows and door. this result is unexpected, but after further analysis, it reflects the important problems in the quality of plastic steel windows and door.
Moreover, because the lining steel of plastic steel windows and door is not connected into a complete frame system in the inner cavity corner of its profile, the plastic welding angular strength of window frame, fan four corners and T-joint is relatively low.
Airtight performance:
Because the frame and fan components of plastic steel windows and door are welded, the air tightness of plastic steel windows and door should be slightly better than that of aluminum alloy windows and door connected by screws, but the dimensional accuracy of aluminum alloy windows and door is higher, and the coordination of frames and fans is more strict, so the two are still at the same level.
Thermal insulation performance:
The thermal insulation performance of aluminum alloy is not as good as that of plastic steel windows and door.
Daylighting performance:
The lighting performance of plastic steel windows and door is worse than that of aluminum alloy windows and door, and the shading area of its frame fan members is about 10% larger than that of aluminum alloy windows and door, and the visual field and decoration effect are poor, which is not conducive to energy saving and consumption reduction of building lighting.