Aluminum is divided into raw aluminum cold chamber die casting machine and cooked aluminum. Raw aluminum is less than 98% aluminum, which is relatively brittle and hard, and can only be foundry casting products; cooked aluminum is more than 98% aluminum, which is soft in nature and can be rolled or punched in a variety of utensils. Bengbu Longhua Die-casting Machine Co., Ltd. is a professional aluminum foundry and aluminum die-casting manufacturer, capable of creating high-quality products. Let me talk about the identification of the characteristics of inferior aluminum profiles.

1. Unqualified chemical composition

The cost of aluminum profiles with a large amount of miscellaneous aluminum and scrap aluminum in the product has been greatly reduced, but it will lead to unqualified building aluminum profiles and seriously endanger the safety of construction projects.

2. Reduced closing time

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. Thin oxide film thickness

The national standard stipulates that the oxide film thickness of architectural aluminum profiles should not be less than 10um (micrometer). If the thickness is not enough, the surface of the aluminum profile is easy to rust and corrode. In the random inspection, some aluminum profiles without production name, factory location, production license, and qualification certificate have an oxide film thickness of only 2 to 4um, and some even have no oxide film. According to experts' estimates, for every reduction in the thickness of the oxide film by 1um, the cost of electricity consumption per ton of profile can be reduced by more than 150 yuan.

4. Unqualified chemical composition

Aluminum profiles mixed 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 building aluminum profiles and seriously endanger the safety of construction projects.

Unqualified aluminum profiles will be deformed due to the influence of air, rain, etc. during use. Inferior aluminum profiles are not only a tofu project, but also endanger our safety. Therefore, we must find a reliable one. factory.