How to identify inferior aluminum profiles?

January 16, 2024

Aluminum profiles are a kind of metal building materials that are involved in all walks of life. However, there are still advantages and disadvantages in the aluminum profiles on the market. The high-quality aluminum profiles are soft in nature, strong in hardness and have a certain gloss on the surface. However, inferior aluminum profiles are brittle and the service life will be greatly reduced. How to identify inferior aluminum profiles in the process of purchasing aluminum profiles?

Methods and techniques for identifying inferior aluminum profiles:

In order to learn how to identify inferior aluminum profiles, it is necessary to first understand the characteristics of inferior aluminum profiles before purchasing aluminum profiles. Generally, inferior aluminum profiles have the following characteristics:

1. The chemical composition is unqualified. The cost of aluminum profiles doped with a large amount of miscellaneous aluminum and scrap aluminum in the product is greatly reduced, but the chemical composition of the aluminum profiles of the building is unqualified, which seriously jeopardizes the safety of construction projects.

2. Inferior aluminum profiles greatly reduce the sealing time, reduce the loss of chemical reagents, and reduce the cost, but the corrosion resistance of the profiles is also greatly reduced.

3. The thickness of the oxide film is thin. The national standard stipulates that the thickness of the oxide film of the building aluminum profile should be not less than 10um (micron). The thickness is not enough, and the surface of the aluminum profile is rust and corrosion. Some aluminum profiles without a name, site, production license and certificate have a thickness of only 2 to 4 um, and some even have no oxide film. According to experts' estimates, for every 1 um reduction in oxide film thickness, the cost per ton of profile can be reduced by more than 150 yuan.

4. The chemical composition is unqualified. The aluminum profile with a large amount of miscellaneous aluminum and scrap aluminum can greatly reduce the cost, but it will lead to the unqualified chemical composition of the aluminum profile of the building, which seriously jeopardizes the safety of the construction project.

Unqualified aluminum profiles, due to the influence of air, rain, sunlight, etc., may cause deformation of the aluminum profile, and even cause the glass to rupture and fall off. Therefore, Xiaobian recommends that you pay attention to the aluminum profile during the process of purchasing the aluminum profile. The selection of quality, it is best to choose a regular production company to purchase the product is more assured.