Focus on high-quality aluminum production service providers
How to distinguish whether it is inferior aluminum profile
Pubdate:
2021-12-24
Aluminum is divided into raw aluminum and cooked aluminum. Raw aluminum is less than 98% aluminum, which is relatively brittle and hard, and can only be found in sand 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. So when ordering aluminum profiles, how do you tell whether it is inferior aluminum profile?
1. The chemical composition is unqualified, and the cost of aluminum profiles mixed with a lot of miscellaneous aluminum and scrap aluminum in the product is greatly reduced, but it will cause the chemical composition of the aluminum profile to be unqualified, and seriously endanger the safety of the construction project.
2. Many inferior aluminum profiles reduce the closing 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 thickness of the oxide film on the aluminum profile of the national standard rule should not be less than 10um (micrometer). If the thickness is not enough, the appearance 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 do not even have an oxide film. According to experts' budget, for every 1um reduction in the thickness of the oxide film, the electricity consumption cost per ton of profile can be reduced by more than 150 yuan.
4. The chemical composition is unqualified. The aluminum profile mixed with a lot of miscellaneous aluminum and scrap aluminum can greatly reduce the cost, but it will cause the chemical composition of the aluminum profile to be unqualified, and seriously endanger the safety of the construction project.
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Aluminum is divided into raw aluminum and cooked aluminum. Raw aluminum is less than 98% aluminum, which is relatively brittle and hard, and can only be found in sand 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. So when ordering aluminum profiles, how do you tell whether it is inferior aluminum profile?
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