As is well known, the scope of industrial aluminum profiles is very wide and can be seen almost everywhere, especially in the construction industry. With the development of technology, the types of aluminum profiles have also increased, each with its own characteristics. So, how should we choose? Below, the editor will take you to understand the methods of selecting industrial aluminum profiles
1. Strength: Strength is an important factor that must be considered in product design. When using aluminum alloy components as components, appropriate alloys should be selected based on the pressure they are subjected to. Pure aluminum has the lowest strength, while 2 series and 7 series heat-treated alloys have the highest degree, and there is a certain correlation between hardness and strength.
2. Hardness: Many customers are very concerned when purchasing aluminum, and hardness is directly related to the chemical composition of the alloy. Secondly, different states also have a significant impact. From the highest achievable hardness, the 7 series, 2 series, 4 series, 6 series, 5 series, 3 series, and 1 series decrease in sequence.
3. Corrosion resistance: Corrosion resistance includes chemical corrosion, stress corrosion resistance, and other properties. Generally speaking, 1 series pure aluminum has the best corrosion resistance, 5 series performs well, followed by 3 series and 6 series, and 2 series and 7 series are poor. The principle of selecting corrosion resistance should be determined according to its usage scenario. In the corrosive environment of high-strength alloys, various composite materials for corrosion prevention must be used.
4. Weldability: Most aluminum alloys have no problem with weldability, especially some 5 series aluminum alloys, which are designed specifically for welding considerations. On the other hand, some 2 series and 7 series aluminum alloys are more difficult to weld.
5. Decorative performance: When aluminum is used for decoration or certain specific occasions, its surface needs to be anodized, coated, and processed to obtain the corresponding color and surface structure. At this time, its decorative performance should be given special consideration. Generally speaking, materials with good corrosion resistance have excellent anode treatment performance, surface treatment performance, and coating performance.
6. Processing performance: Processing performance includes insertion forming performance and cutting performance. Because formability is related to the state, after selecting aluminum alloy grades, it is also necessary to consider the strength range of various states. Generally, high-strength materials are not easy to form. Taiguo needs to perform bending, stretching, deep drawing and other forming processes on aluminum materials. The formability of the annealed material is the best, while the formability of the heat-treated material is the worst. Aluminum alloy has poor machinability, and requires better machinability for molds, mechanical parts, etc. Conversely, low strength materials have poor machinability. For products that require cutting processing such as molds and mechanical parts, the machinability of aluminum alloy is an important consideration factor.