Publish Time: 2023-04-01 Origin: Site
At present, the production and consumption of aluminum alloy parts in the world are mainly concentrated in the United States, Japan, China, Germany, Italy and other countries and regions. In recent years, the use of automotive aluminum alloys has grown rapidly, and the market penetration rate has continued to increase.
Application range and precision requirements of aluminum alloy in the automotive field
Precision aluminum alloy parts are mainly used in cooling systems, vibration reduction systems, micro motors, power systems, etc. in the field of auto parts. Based on the important role of aluminum alloy materials in the process of automobile lightweight promotion, its application range in automobiles is becoming wider and wider. The application range has expanded from the initial engine block, gearbox housing, wheel hub, etc. to the car body. Among the important components.
The engine with an all-aluminum cylinder body has appeared at present, the weight reduction effect is very obvious (more than 30kg can be reduced). The American Aluminum Association proposes that if the weight of the vehicle is reduced by 25%, the time for the vehicle to accelerate to 60mph can be reduced by 40%; the use of aluminum alloy profiles reduces the weight of the vehicle without reducing the volume of the vehicle, thus making the vehicle more stable , The aluminum alloy profile structure can absorb more energy when it is impacted, so it is safer and more comfortable.
Jiahangaero said that more than 90% of extruded aluminum materials for automobiles are produced with 6-series alloys, and only a few are extruded with 3, 5-series and 7-series alloys. It is mostly used in the manufacture of auto parts in the form of extruded profiles and pipes. At present, the models of passenger cars with all-aluminum body structure are some high-end models or super sports cars.
Aluminum alloy has been widely used in European and American automobile markets
For the European automobile market, the amount of aluminum alloy used in bicycles will reach 180kg in 2020. Among them, high-end cars such as A8, Jaguar XJ and Land Rover have used 500kg of aluminum for single vehicles.
Among the 180kg aluminum alloy used in a bicycle, the wheel hub accounts for about 20%, the engine parts account for nearly 30%, the gearbox accounts for 10%, the heat exchanger accounts for 8%, and the door and engine cover account for 5%. Parts account for 5%, steering and braking systems account for 7%, and bumpers account for 3%.According to the research of Drive Aluminum, in the North American automobile market, aluminum alloys began to be used in heat exchangers in 1980, in wheel hubs and engine assemblies in 1990, and then in bumpers and hoods. Now it is mainly used in the car body. According to Drive Aluminum, the amount of aluminum used by bicycles in North America reached 158kg in 2012, and it is estimated that the average amount of aluminum used by bicycles will reach 250kg by 2025.
The usage rate of aluminum alloy in automobile parts is increasing
The automobile body is the biggest growth point of aluminum alloy in automobiles in the future, and the engine assembly also has a lot of room for improvement. According to the statistics of Drive Aluminum, in 2015, the market penetration rate of aluminum alloy in automobile body was only 6.6%. With the increasing call for emission reduction and low consumption, the market penetration rate of aluminum alloy will reach 26.6% by 2025. The penetration rate of the all-aluminum body will reach 18%, and the penetration rate of the door will reach 46%. It is estimated that by 2025, the total demand for aluminum alloys in the North American auto market will reach 4.54 million tons, and the market space is huge.