來源：http://www.f972.cn/ 來源：http://www.f972.cn/ 發布時間：2023-02-21
Aluminum coil is a kind of metal sheet, which is melted by aluminum ingot, added with different alloys, and processed by cast-rolling or hot rolling, cold rolling, annealing, cross cutting and other processes. With various colors, beautiful appearance and strong decoration, it is widely used for external wall insulation, pipeline insulation and building decoration. What are the characteristics of inferior aluminum coils? The aluminum coil processing manufacturer analyzes for you:
1. The chemical composition is unqualified, and the cost of aluminum profile doped with a large amount of miscellaneous aluminum and waste aluminum in the product is greatly reduced, but it will lead to unqualified chemical composition of aluminum profile for construction, seriously endangering the stability of the construction project.
2. Poor quality aluminum coils greatly reduce the sealing time, reduce the loss of chemical reagents, and reduce the cost, but also greatly reduce the corrosion resistance.
3. The oxide film is thin. The standard stipulates that the thickness of the oxide film of the aluminum profile for building shall not be less than 10um (micron). The thickness is not enough, and the surface of aluminum profile is easy to rust and corrosion. Some aluminum profiles without product name, factory address, production, license and certificate of conformity in the spot check have an oxide film thickness of only 2 to 4um, and some even have no oxide film. According to experts' estimation, the power consumption cost per ton of profile can be reduced by more than 150 yuan per reduction of 1 um oxide film thickness.
4. The chemical composition is unqualified. The aluminum volume mixed with a large amount of miscellaneous aluminum and waste aluminum can greatly reduce the cost, but it will lead to unqualified chemical composition of the construction aluminum coil, seriously endangering the stability of the construction project.
Unqualified aluminum coils will be deformed due to the influence of air, rain, sunlight, etc., and even cause the glass to break and fall off.
For consumers, they want to buy high-quality and cheap products, which can not only ensure the use effect, but also save costs. However, many customers will be attracted by the low sales price when purchasing aluminum coils, and then ignore the quality problem of products. This is wrong. We should pay attention to the quality problem of products at all times, which is the basis for ensuring the use effect of products. Please come to our website for product matters http://www.f972.cn consulting service