Why is aluminum more expensive than iron?　　
The most abundant metal in the crust is aluminum, which accounts for 7.45% of the total mass of the entire crust. Although the reserves of aluminum in the crust are more than iron, the production process of aluminum is much more complicated than that of iron. Aluminum is a relatively active metal element. , Smelting requires electrolysis, and the cost of the entire production process is higher than that of iron, so the price of aluminum is higher than that of iron.
Why choose aluminum materials instead of traditional steel materials?
Due to its excellent structural and functional characteristics, the surface of aluminum has a dense oxide protective film, which has strong corrosion resistance and can be recycled and used repeatedly. At the same time, with the improvement and improvement of the properties of aluminum and aluminum alloy materials , Its application scope is continuously expanding, and the replacement of materials such as "substituting aluminum for wood" and "substituting aluminum for steel" has become more and more widely used, further exerting the characteristics of light weight, energy saving, ecology and recycling of aluminum profiles.

Why do aluminum profiles generally need to be surface treated?　
If the aluminum profile is not surface treated, the appearance is not beautiful, and it is easy to be corroded in moist air, so it is difficult to meet the high decorative and weather resistance requirements of the aluminum profile in the building materials, in order to improve the decorative effect and enhance the corrosion resistance And to extend the service life, aluminum profiles generally have to be surface treated. Xingfa Aluminum Material Factory has anodizing, powder coating, spraying fluorocarbon coating, electrophoresis coating, bridge breaking and other technological methods to meet customer customization needs.
Generally speaking, aluminum profiles are used in the construction field with their unique decoration, excellent sound insulation, heat preservation and recyclability, which conforms to the concept of green, environmental protection and energy saving advocated by the country. In the future, as the development of the aluminum profile industry and process technology becomes more mature, it will expand to more fields and develop in a diversified direction. It will be more widely used in construction, transportation, home appliances, aviation, machinery and other industries.