Each has its own advantages and disadvantages.
The advantage of bridge-cutoff aluminum alloy is that the technology is mature, the appearance is beautiful, and all performance indicators are good. The disadvantage is that the broken bridge material in the middle is prone to problems, and the broken bridge part is easy to cause water seepage.
FRP doors and windows the advantage is that the heat preservation and sound insulation performance is stronger than bridge-cutoff aluminum alloy doors and windows, and the whole material does not have the performance problems that are easy to occur in structural composite materials such as broken bridges. The disadvantage of FRP doors and windows is that the market influence is still small, and only a few technologies are mature.
FRP doors and windows heat-conduction coefficient low, constant insulation material, relatively more economical and practical. These two definitions FRP doors and windows adopt medium alkali glass fiber untwisted rough yarn and its fabric as reinforcing materials, unsaturated resin as matrix materials, and these two materials are compounded through special processes, and add other mineral filler, and then through heating curing, pultrusion into a variety of different cross section of the hollow profile processing. The principle of broken bridge type aluminium windows is to use PA66 nylon to separate and closely connect the indoor and outdoor aluminum alloy into a whole, forming a new heat insulation aluminum profile. At present, the low-end of China has changed PA66 into plastic insulation strip, which greatly shortens the use effect and life. 1: After testing, hollow glass is also used, glass steel window heat-conduction coefficient is 1.3~2.2W/㎡ · k; Bridge-cutoff aluminum alloy heat-conduction coefficient is 1.8~3.5W/㎡ · k; glass steel window more effectively reduces the heat conduction through doors and windows. 2: FRP doors and windows moldings has low expansion coefficient and good dimensional stability. It can always save energy and keep warm during use, meeting the requirements of low carbon. Aluminum Alloy and heat insulation strip linear expansion coeffcient are different, but they are still different:
Broken Bridge aluminium windows and glass doors and windows have the characteristics of strong and durable. The specific quality varies from person to person, and different people have different views.
First, the broken bridge aluminium windows is an improved version to improve the thermal insulation performance of doors and windows on the basis of the old aluminium windows. The principle of broken bridge type aluminium windows is to use PA66 nylon to separate and closely connect the indoor and outdoor aluminum alloy into a whole, forming a new heat insulation aluminum profile.
Features:
1. Good thermal insulation: PA66 nylon in Broken Bridge aluminum profile has low thermal conductivity
2. Good sound insulation: its structure has been carefully designed, the joints are tight, and the test results show that the sound insulation is 30 db, which conforms to the relevant requirements.
3. Impact resistance: Because the outer surface of the Broken Bridge aluminum profile is aluminum alloy, it is more impact resistant than the plastic steel window profile
4. Good air tightness: multiple sealing strips are installed at each gap of the Broken Bridge aluminum window, which has good air tightness,
5. Good watertightness: the doors and windows are designed with rainwater proof structure, which completely isolates the rain from the outside,
6. Good fire resistance: aluminum alloy is metal material and does not burn.
7. Good anti-theft: broken bridge type aluminium windows, equipped with excellent hardware accessories and advanced decorative locks, making thieves helpless
8. Maintenance-free: broken bridge type aluminum alloy window profile is not easily eroded by acid and alkali, does not turn yellow and fade, and almost does not need maintenance.
Second, glass fiber reinforced plastic doors and windows are internationally called the fifth generation doors and windows products after Jimu, steel, aluminum and plastic. It not only has the firmness of aluminum alloy, but also has the thermal insulation and corrosion resistance of plastic steel doors and windows, it also has its own unique characteristics: colorful, beautiful and fashionable, no expansion in sunlight, no shrinkage in winter cold, no metal strengthening, aging resistance, it can have the same life as the building (about 50 years). The unique material structure of FRP doors and windows makes it have certain excellent characteristics.
Anti-aging and high strength. No steel plate is used as the lining in the abdominal cavity of fiberglass section on an empty stomach, and no single material is needed for auxiliary reinforcement, which is completely supported by its own structure. As the glass fiber and its fabric are used as reinforcing materials, the hairless silk is exposed after being bonded by resin, and it is molded by mechanical pultrusion and heat curing, so it is resistant to bending, bending and deformation.
Features:
Corrosion resistance and long service life. FRP is a high-quality composite material. It has special anti-corrosion function for various corrosive media such as acid, alkali, salt, oil and so on, and will not cause corrosion. Ordinary PVC has a life span of 15 years, while FRP has a life span of 50 years, which is basically the same as that of buildings. Therefore, using FRP doors and windows can reduce the trouble of replacing doors and windows and save expenses.
If it is the outdoor window of the family, it is recommended to use the broken bridge window, which has ideal heat preservation, sound insulation and energy saving effects; if you need transparent display windows or indoor windows, it is recommended to use glass doors and windows, but it should be noted that a single piece of glass larger than one square meter must be tempered, after all, safety is the first. In terms of price, the cost of FRP doors and windows is relatively high.
