[China Aluminum Network] Look at the door and window material

The aluminum profiles, thickness, strength and oxide film used in high-quality aluminum alloy doors and windows are all in compliance with relevant national standards. The wall thickness should be 1.2mm or more, and the thickness of the oxide film should reach 10 microns. If it exceeds national standards, even products that meet European standards are certainly better choices.

The second look at the processing of windows and doors

High-quality aluminum alloy doors and windows, fine processing, installation stress, good sealing performance, switch freely. Poor aluminum alloy doors and windows, materials and specifications are not up to standard, and processing is also uneven, poor sealing performance, not only leakage of air leakage, but also in the case of strong winds and external forces are prone to glass cracking and other phenomena , causing the glass to fall or fall off.

The third look at the appearance of doors and windows

The appearance of doors and windows is also a key link. Aluminum alloy doors and windows have an artificial oxide film and are colored to form a composite film. This composite film is not only corrosion-resistant and wear-resistant, but also has a certain fire protection function. The gloss is extremely high. To compare as much as possible, try to choose the products of the regular aluminum alloy door and window manufacturers, select and process precision, accurate, open and close light and flexible, no noise, and elegant decorative products.

Fourth look at the price of doors and windows

Under normal circumstances, high-quality aluminum alloy doors and windows due to high production costs, the price is about 30% higher than inferior aluminum alloy doors and windows. Some aluminum alloy doors and windows with a thickness of only 0.6-0.8 mm aluminum profile, the tensile strength and yield strength are much lower than the relevant national standards, the use is very unsafe, and it must not be ignored because of the cheap moment of greed and their own safety factors. .

Fifth look at the performance of windows and doors

Aluminum alloy doors and windows are usually assessed for the following main properties: strength, airtightness, watertightness, opening and closing force, sound insulation, heat insulation, durability of nylon guide wheels, and durability of opening and closing locks.

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