What are the advantages of aluminum alloy doors and windows

 

　　1. Beautiful appearance

 

After the surface of the aluminum alloy is anodic electrochemically treated, it can show ancient lead liver copper, golden yellow, silver white and other colors, which can be selected arbitrarily, and it is bright, clean and shiny after oxidation. The sash frame is large and can be inlaid with a larger area of ​​glass, so that the indoor light is abundant and bright, which enhances the contrast between the interior and exterior facades, and makes the living room more layered.

 

　　2. High wind pressure resistance and good water tightness

 

　　Due to the low material strength and rigidity of plastic steel doors and windows, its wind pressure resistance and water tightness are about two grades lower than that of aluminum alloy doors and windows. In addition to air tightness, the water tightness and wind pressure resistance of aluminum alloy doors and windows are better than those of plastic steel doors and windows. Moreover, because the lining steel of plastic steel doors and windows is not connected to a complete frame system at the corners of the inner cavity of the profile, the window frame , The strength of the plastic welding corners of the four corners of the fan and the t-bit point is relatively low.

 

　　3. Good sealing performance

 

　　The aluminum alloy itself is easy to extrude, the cross-sectional dimension of the profile is accurate, and the processing accuracy is high. Optional sealing materials with good waterproofness, elasticity and durability, such as rubber beading and silicone series sealants. In terms of profiles, various sealing strip fixing grooves have been completed together with the section in the extrusion molding process, creating favorable conditions for the installation of sealing materials.

 

　　4. Light weight and high strength

 

　　Aluminum alloy materials are mostly hollow-core and thin-walled composite sections, which are convenient to use, reduce weight, and have high flexural strength in the section. The doors and windows made are durable and have small deformation.

 

　　5. Thermal insulation performance

 

　　The thermal insulation performance of aluminum alloy is not as good as that of plastic steel doors and windows.

 

　　6. Strong corrosion resistance

 

　　The aluminum alloy oxide layer does not fade, does not fall off, does not need to be painted, is easy to maintain, and does not need to be repaired.

 

　　7. The air tightness performance is slightly poor

 

　　Aluminum alloy door and window profiles have high dimensional accuracy, and the frame and fan are closely matched. However, because the frame and fan components of plastic steel doors and windows are welded, their air tightness should be slightly better than that of screw-connected aluminum alloy doors and windows, but the two are still in a grade level.

 

　　How to distinguish the quality of aluminum alloy doors and windows

 

　　Unqualified aluminum alloy doors and windows will be affected by sunlight, air, rain, etc., resulting in deformation of aluminum profiles, and even glass cracking, falling off, etc., and the thickness of the oxide film is thin. The national standard stipulates that the thickness of the oxide film of architectural aluminum profiles should not be less than (microns). If the thickness is not enough, the surface of the aluminum profile is easy to rust and corrode.

 

　　In the random inspection, some aluminum profiles without production name, factory address, production license, and qualification certificate have only the thickness of the oxide film, and some even have no oxide film. According to experts' estimates, every reduction in the thickness of the oxide film can reduce the cost of electricity consumption per ton of profiles, and the chemical composition is unqualified.

 

　　Aluminum profiles mixed with a large amount of miscellaneous aluminum and waste aluminum can greatly reduce the cost, but will lead to unqualified chemical composition of architectural aluminum profiles, which will seriously endanger the safety of construction projects. Inferior aluminum profiles greatly reduce the sealing time, reduce the loss of chemical reagents, and reduce the cost, but the corrosion resistance of the profiles is also greatly reduced. When choosing aluminum alloy doors and windows, it is best to look for Chinese famous brand door and window products.