Tips for purchasing aluminum alloy doors and windo

  • Detail

1、 Look at the performance of doors and windows

aluminum alloy doors and windows usually assess the following main properties: strength, air tightness, water tightness, opening and closing force, sound insulation, heat insulation, nylon guide wheel durability, opening and locking durability and other elements

Second, look at the appearance of doors and windows

the appearance of doors and windows is also a key link. There is an artificial oxide film on the surface of aluminum alloy doors and windows and coloring to form a composite film, which is not only corrosion-resistant, wear-resistant, And it has certain fire prevention function and high gloss. When choosing, we should try to compare as many as possible. We should try to choose the products of the manufacturers of normal track aluminum alloy doors and windows, and choose the products with fine processing, accuracy, cumbersome and sensitive opening and closing, no noise, and elegant decorative effect

III. look at the price of doors and windows

under normal circumstances, the price of high-quality aluminum alloy doors and windows is about 30% higher than that of low-quality aluminum alloy doors and windows because of their high consumption cost. 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 much lower than the relevant national norms and regulations. Their use is very unsafe. They must not ignore their own safety factors because they are greedy for a moment's cheapness

the aluminum profile, thickness, strength and oxide film used for high-quality aluminum alloy doors and windows are in line with the relevant national specifications and rules. The wall thickness should be more than 1.2mm, and the oxide film thickness should reach 10 microns. If beyond the national norms, and even reach the European norms of products, of course, is a good choice

IV. look at the processing of doors and windows

high quality aluminum alloy doors and windows have precise processing, exquisite devices, good sealing performance, and self-contained switches. The materials and specifications of inferior aluminum alloy doors and windows cannot meet the specifications, and the processing is also mixed. The sealing performance is poor. Not only does it leak air and rain, but it is easy to show phenomena such as glass cracking in the case of strong wind and excessive external force, resulting in glass scraping or bumping





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