what are the advantages of doors and windows and how to distinguish the quality of aluminum alloy doors and windows.
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what are the advantages of aluminum alloy doors and windows?
1. Beautiful appearance
after the aluminum alloy surface is anodized, it can present ancient lead liver copper, golden yellow, silver white and other colors, which can be selected at will, and is bright and shiny after oxidation. Casement large frame and insertable large area of glass make the indoor light bright and bright, enhance the contrast between the facade and the facade between indoor and outdoor, and make the room more layered.
2. High wind pressure resistance and good water tightness
plastic steel doors and windows are about two grades lower than aluminum alloy doors and windows due to their low material strength and rigidity. 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 lined steel of plastic steel doors and windows are not connected into a complete frame system at the corner of the inner cavity of the profile, the plastic welding angle strength of window frame, fan Four Corners and T-shaped joints is relatively low.
3. Good sealing performance
aluminum Alloy itself is easy to squeeze, the cross section size of the profile is accurate, and the processing accuracy is high. Optional waterproof, elastic and durable sealing materials, such as rubber layering and silicone series sealant. In terms of profiles, all kinds of sealing strip fixing grooves have been completed together with the same section in the extrusion molding process, creating favorable conditions for installing sealing materials.
4. Light weight and high strength
aluminum alloy materials are mostly hollow-core thin-walled combined sections, which are convenient to use and reduce weight, and the section has high bending strength. The doors and windows made are durable and have deformation correction.
5. Thermal insulation performance
the insulation performance of aluminum alloy is not as good as that of plastic steel doors and windows.
6. Strong corrosion resistance
aluminum Alloy oxide layer does not fade, does not fall off, does not need painting, is easy to maintain, does not need maintenance.
7. The air tightness is slightly poor
aluminum Alloy door and window profile the dimensional accuracy is relatively high, and the frame and fan are closely matched. However, since the frame and fan components are welded, the air tightness of plastic steel doors and windows should be slightly better than that of aluminum alloy doors and windows connected by screws, but the two are still at the same level.
How to distinguish the quality of aluminum alloy doors and windows
unqualified aluminum alloy doors and windows will be deformed due to the influence of sunlight, air, rain and so on, and even cause the phenomenon of glass cracking and falling off, oxide film the national standard for thickness protection stipulates that the oxide film thickness of building aluminum profiles shall not be less than (micron). The thickness is not enough, and the surface of aluminum profile is easy to rust and corrode.
Some aluminum profiles without production names, factory addresses, production licenses and certificates in the sampling inspection are only oxide film thick, and some are not even oxide film. According to experts' estimation, every oxide film thickness reduction can reduce the cost of electricity consumption per ton of profiles. The chemical composition is unqualified.
Adding a large amount of miscellaneous aluminum and aluminum waste aluminum profiles can greatly reduce the cost, but it will lead to unqualified chemical composition of building aluminum profiles, seriously endangering the safety of construction projects. Inferior aluminum profiles greatly reduce the closing time, reduce the loss of chemical reagents, and reduce the cost. However, the corrosion resistance of profiles also greatly reduces the best choice of aluminum alloy doors and windows.
