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How to quickly identify inferior aluminum?
Release time:2019-8-27 15:25:15      Hit count:637

82455com彩霸王-4685com本港台直播-399322com香港挂牌Features of low-quality aluminum profiles:

1. Unqualified chemical composition. The cost of aluminum profiles doped with a large amount of miscellaneous aluminum and waste aluminum in the product is greatly reduced, which will lead to unqualified chemical composition of architectural aluminum profiles and seriously endanger the safety of construction projects.

2. low-quality aluminum profile greatly reduce the sealing time, reduce the loss of chemical agents, cost reduction, but the corrosion resistance of the profile is also greatly reduced.

3. Thin oxide film thickness. The national standard stipulates that the oxidation film thickness of building aluminum profile should not be less than 10um (micron). Thickness is not enough, aluminum profile surface easy to rust, corrosion. Sampling inspection of some proletariat, factory site, production license, certificate of aluminum profile, its oxidation film thickness only 2 to 4um, some even no oxidation film. According to the expert estimate every reduce 1um oxidation film thickness, every ton of profile can reduce the cost of electricity consumption more than 150 yuan.

4. 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 construction aluminum profiles, seriously endanger the safety of construction projects.

Unqualified aluminous profile, because air, rainwater, sunshine wait for influence when using, bring about aluminous profile to be out of shape, cause glass to break even, fall off wait for a phenomenon.

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