Expanding aluminum applications and increasing aluminum consumption has always been a great event in the development of the aluminum industry. In recent years, the development of automobile lightweight has provided a broad market space for the expansion of aluminum applications. The relevant institutions predict that by 2025, the vehicle will lose 20% weight compared with 2015, and the aluminum for the single vehicle will reach 250 kg. By 2030, the weight will be reduced by 35% compared to 2015, reaching 350 kg for single-vehicle aluminum. It can be seen that the future automobile lightweight aluminum application market should not be underestimated.
New energy vehicles have an urgent demand for lightweight, and the range of pure electric vehicles can be increased by 2.5km for every 10kg reduction in vehicle weight. Tesla and Weilai cars are leading the industry in lightweight, and traditional car companies such as BYD, BAIC New Energy, and Geely Motors are also increasing their lightweight layouts. Driven by the energy saving and emission reduction policy and the acceleration of electrification, car lightness is accelerating. The chassis is lightweight for the new blue Sea. The permeability of the aluminum battery box, sub-frame, control arm, and steering section is increasing. At present, the most mainstream lightweight materials are high-strength steel and aluminum alloy materials.
Nowadays, the United States, Japan, and Germany are the countries with the most aluminum alloys in automobiles, such as Volkswagen (Audi A8, A2), Japan's NXS, and other aluminum alloys amounting to 80%. Apart from Shanghai Santana, FAW Audi, and Jetta all introduced aluminum alloy production lines, Chinese cars, especially Hongqi Car, about 80 ~ 100 kg.
The data show that the replacement of traditional steel with aluminum alloy structure can reduce the car quality by 30% ~ 40%, make the engine by 30%, and make the wheel by 50%. In addition, the main advantages of aluminum alloy are its light weight and good heat dissipation. Therefore, it is necessary to study and develop aluminum alloy automotive parts.
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