How to distinguish the quality of the aluminum alloy frame of the carport.
Aluminum alloy is a kind of metal that is widely used. It is a main material in our aluminum alloy carport kit.
The quality of the carport depends on the quality of the aluminum alloy directly.
Today, we will tell you how to use our eyes to distinguish the quality of the aluminum alloy.
1 The wall thickness of the profile,Profiles with thin walls can’t be used.
2 The evenness of the palate’s surface.Take the hollow profile as an example， you should check whether there are dents and bulges in four sides of the profile.
3 The length of the profile is 6m. You should check whether there is obvious twist. It the twist is too large, the plate can’t be used.
4 Check whether the surface of the profile has bubbles (white dots) and grey slag (black dots).
5 No cracks, burrs, peelings and corrosion should be found on the surface of the profile.
6 No obvious scratches, pressed pits and cuts should be found on the surface of the profile.
7 It you use your hands to bend the profile, the twist strength should be good, and the plate can return to its original shape after you loosen your hands. It should not be too soft. Shapes like “noodles” can’t be ever used.
8 A color with two different shades is not allowed in the same profile.
9 Put several profiles together to compare the color difference. If the color difference is too obvious, it will be not good to use it.
10、Use a lubricating hard object (the steel object) to slightly make a line, and there will be a white scratch on the surface of the profile. If the scratch can be cleaned by your hand, it means the oxide film isn’t been cleaned. If the white scratch can’t be cleaned off by your hand, it means the oxide film has been cleaned off, which means the oxide film isn’t sturdy and thick enough. And the aluminum has a poor quality of oxidation.
11. Hollow profiles with blue, green or yellow inner walls all belong to scrap aluminum.
The quality of the aluminum is related to many factors. The following are some common introductions, aiming to prevent our clients from being swindled and offer a preliminary basis to them when they are choosing the aluminum profile. When choosing the profile, you should check the test report. If you are anxious to get things on the cheap and believe in what salesmen talk about, you will buy the aluminum profile of bad quality, which will lead to hazard for construction.