How to identify aluminum profiles

Release time:

2022-05-31

How can we know whether the quality of aluminum profile is good or bad? The quality of aluminum profile is good or not, mainly depends on the composition. Let's have a detailed understanding of the following.

How can we know whether the quality of aluminum profile is good or bad? The quality of aluminum profile mainly depends on the composition. Let's understand it in detail.

1. air oxide film thickness is thin

national industry standard requires that the air oxide film thickness of aluminum profiles for engineering buildings shall not be less than 10μm (microns). The thin thickness is insufficient, and the surface of the aluminum profile is easy to etch and corrode. In the sampling inspection, some aluminum profiles have no manufacturing name, manufacturing site, production license and certificate. The thin thickness of air oxide film is only 2 ~ 4um, and some even have no air oxide film.

2. poor product composition

aluminum profile mixed with a lot of aluminum and scrap steel can greatly reduce the cost, but it will cause the aluminum profile composition of engineering buildings to fail, which will seriously endanger the safety of engineering buildings.

3. thinned aluminum profile wall thickness

90 series mobile door and window aluminum profile products, according to international profile standards, the thickness of the aluminum profile cannot be less than 1.4mm.

4. fake aluminum profile

fake aluminum profile greatly reduces the closing time, the consumption of chemicals, reduces the cost, but the corrosion resistance of aluminum profile is also greatly reduced.

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