Automotive Parts: Aluminum alloys are increasingly used

At present, the auto industry has become China's pillar industry. Especially after 2000, the Chinese auto industry has entered the fast lane, and has become the world's largest automobile production country and the world's most potential consumer market. In 2007, China's total automobile production reached 8.88 million, an increase of 22% year-on-year. We have achieved double-digit growth for nine consecutive years on the basis of an ever-increasing base; China's automobile domestic demand has reached 8.42 million, an increase of 20.2%. As with production, we have achieved double-digit growth for nine consecutive years on the basis of a higher and higher base. The development of the automobile industry, with the increase in the number of cars held, has promoted the development of China's manufacturing industry and brought convenience to people's lives. At the same time, it has also produced three major problems of fuel consumption, emissions, and safety. Lightweighting is an important factor for energy conservation and emission reduction in the automotive industry. Lightweight means will inevitably lead to a large number of aluminum alloy applications in the car. A typical aluminum part can achieve a weight loss of 30 to 40%, and a secondary weight loss can be further increased to 50%. In 2006, the average aluminum consumption of cars in Europe, America and Japan has reached 127kg/vehicle. The European Aluminum Association (EAA) predicts that by 2015, the aluminum used in European cars will increase to 300kg/vehicle. If parts of cars, which are made of aluminum alloys, are replaced by them, then the average use of each car is The amount of aluminum will reach 454kg, and the lightweight effect will be greatly improved. For every 10% reduction in the weight of the car, fuel savings of up to 8% can be achieved. Each use of 1kg of aluminum can reduce the life of the car by 20kg of exhaust emissions. At the same time, aluminum is a green, environmentally friendly material that is easily recycled and recycled. The energy saved by using aluminum is 6 to 12 times that of the primary aluminum used to produce the part. Domestic B-Class, C-Class and running cars have been successively developed and put on the market. This provides a very good market and application basis for aluminum alloys in automotive lightweight applications. At the same time, the application of automotive aluminum alloys is also for domestic B-Class vehicles. The C-Class, as well as the entire industry, provide a prerequisite for technical upgrading. Aluminum alloys currently used in automobiles include: aluminum alloy sheets for body coverings; cast aluminum parts; extruded profiles; forged aluminum alloys;