Is Chinalco better or phoenix aluminum better?
In terms of quality requirements, the quality of Chinalco is better. After all, Chinalco is a state-owned enterprise, and it is a guarantee for users from technology development to after-sales service. Lv Feng Aluminum is one of the first-line brands in domestic aluminum industry, and Chinalco is one of the three major brands in the world. See for yourself. China Aluminum has sales outlets in Hebei.
What are the main characteristics of aluminum?
1, performance
Pure aluminum has low strength, so its use is limited. However, aluminum alloys with different properties can be obtained by adding a small amount of one or more alloying elements, such as magnesium, silicon, manganese, copper, zinc, iron, chromium and titanium. After cold working and heat treatment, aluminum alloy is further strengthened and hardened, and its tensile strength is greatly improved.
2. Chemical properties
The standard potential of aluminum is-1.67V, and its chemical properties are very active, and it is easy to react with oxygen in the air to form a solid and dense oxide film, so it has good corrosion resistance in ordinary atmosphere and clean water. However, contact with steel or other metal materials will cause electrochemical corrosion, contact with alkaline materials such as concrete, cement mortar and lime will cause corrosion in humid environment, and contact with wood and soil will also cause corrosion. Therefore, proper anti-corrosion treatment is needed.
3. Production method
According to different production methods, aluminum alloys can be divided into two categories: cast aluminum alloys and wrought aluminum alloys. Deformed aluminum alloys are generally used in buildings to be rolled into plates, foils and strips, and extruded into bars, tubes or profiles with various complex shapes. Deformed aluminum alloys can be divided into antirust aluminum alloys, hard aluminum, superhard aluminum and special aluminum according to their different properties and uses. Industrial pure aluminum (L 1 ~ L 1), rust-proof aluminum alloys (LF2, LF2 1), etc. ) and forged aluminum (LD2) are generally used in buildings.
4. Functions and uses
The biggest feature of aluminum and aluminum alloys is that the bulk density is about 1/3 of that of steel, while the specific strength (the ratio of strength limit to specific gravity) can reach or exceed that of structural steel. Secondly, aluminum and aluminum alloys are easy to be processed into various shapes and can adapt to various connection processes, which provides favorable conditions for building structures to adopt the most economical and reasonable cross-sectional form. Therefore, the use of aluminum alloy can not only greatly reduce the weight of buildings and save materials, but also reduce the workload of component transportation and installation and speed up the construction progress. This has more remarkable economic effects in earthquake areas and mountainous and remote areas with inconvenient transportation.
The above content is about whether Chinalco is better or Fenglv is better. In the process of material selection, we should consider the basic use, scope of application, production method, chemical properties and so on. If the product quality is not up to standard, the effect may still satisfy everyone. In addition, it is necessary to analyze the main characteristics of aluminum, because different materials often have certain differences in characteristics, and the scope of application will also change.