First, China’s automobile aluminizing rate has a huge room for improvement. There is the potential in the flied of new energy vehicles.

From the perspective of developed countries, the transportation industry is the largest application area of aluminum profiles. Japan and Europe account for more than 30% of the total. Automobile manufacturing, railway and rail vehicle manufacturing, and container manufacturing are the most widely used and growing flied. Recent years, the proportion of aluminum used in transportation in China has been expanding. But compared with developed countries, it’s still at a low level. In 2015, aluminum used in transportation accounted for 19%, which is the second largest industry for aluminum.

Aluminum alloy has developed rapidly since it entered into automotive industry. 

     Its usage has increased year by year. Its application changes from radiators and wheels to cylinder block, engine hood and body-in-white. In 2015, the global aluminum consumption for bicycle was 168kg, and the aluminum consumption for bicycle in China was115kg, which is low. Due to cost constraints, the aluminum application level of domestic commercial vehicle is lower than that of passenger cars. The bicycle usage is about 40kg, which is less than 1% of the total mass. Compared with developed countries, there is a huge room for development in China’s automobile aluminizing rate. It is expected that with the development of rail transit and the continuous promoting of lightweight vehicles, the demand for aluminum for automotive using will show an explosive growth. According to the forecast, by 2020 the production of automobile vehicles is more than 25 million in China. According to the standard of 200kg per bicycle, the demand for aluminum profiles is expected to be about 5 million tons in 2020. With the adjustment of national policies, aluminum used in automotive industry will lead the development of aluminum market, and the demand for high-end aluminum will continue to increase.

Second, aluminum alloy forming process is diverse, and die castings account for 80% Aluminum alloy is the metal material for automobiles after steel. Automotive aluminum can be divided into two parts: aluminum alloy and aluminum matrix composite materials; and automotive aluminum alloy is divided into two parts: cast and deformed aluminum alloy. Simply put, the cast aluminum alloy is liquid-solidified, which becomes liquid-formed in the material forming process; the deformed aluminum alloy is solid-solidified and solid-formed in the forming process.

According to the more detailed classification of processing types, aluminum alloys for automobiles mainly include rolled materials, extruded materials, die-cast aluminum, forged materials, etc. According to the current use of various types of aluminum alloys in automobiles, the ratio is approximately: die-cast aluminum 77 %, 10% of rolled material, 10% of extruded material, and 3% of forged material.

Looking at the national die-casting market, the share of the automotive industry is extremely impressive. As far as China is concerned, in recent years, this ratio has remained between 65 and 75% (including vehicles, motorcycles, etc.). In view of this, this proportion also shows a trend of increasing significantly year by year.