On June 28, at the first China New Energy Intelligent Connected Vehicle Ecological Conference held in Wuhan, Hubei Province, the China Association of Automobile Manufacturers released the 2022 China Automotive Supply Chain Outstanding Innovation Achievement Award. The reporter was informed that the achievement of “Aluminum-based Brake Disc for New Energy Passenger Vehicles” independently developed by Hunan Xiangtou Jintian Aluminum was successfully shortlisted for the award.
Lightweight, energy saving and emission reduction… The many advantages of aluminum-based brake discs make them successfully replace traditional iron discs and become the new favorite of the new energy vehicle industry. For many years, Hunan Xiangtou Jintian Aluminum Co., Ltd. has been focusing on researching powder metallurgy technology to manufacture aluminum-based composite brake discs. Car application, and passed the achievement evaluation organized by the Hunan Provincial Productivity Promotion Center at the end of last year. The new energy vehicle aluminum matrix composite brake disc is another new achievement successfully produced by the team through the innovative use of powder metallurgy process. It is reported that this is also the aluminum-based composite brake disc for new energy passenger vehicles that has passed the bench test of braking efficiency, wear, high load and brake disc temperature rise according to the current cast iron brake disc standard requirements in my country. The brake disc has been installed on pure electric vehicles, and has passed the urban road and Huangshan road test assessments, as well as the vehicle-mounted road test.
Tests show that compared with cast iron brake discs, aluminum-based composite materials have better braking performance, better handling performance, no noise, jitter, insufficient braking force, etc. , has obvious advantages. After replacing the cast iron brake discs of new energy vehicles, only the braking system can help reduce the weight by about 15 kilograms. This means that, taking a new energy passenger car with a cruising range of 500 kilometers as a reference, the battery load can be reduced by 3 kWh for the same cruising range. Based on the annual operation of 20,000 kilometers, one electric vehicle can save about 120 kWh of electricity, which is equivalent to saving 48 kilograms of standard coal and reducing carbon dioxide emissions by about 120 kilograms. After 1 million electric vehicles are equipped with aluminum-based composite brake discs, about 120,000 tons of carbon dioxide can be reduced every year. In addition, the aluminum-based composite brake disc also improves the battery cruising range. It is estimated that the cost of one electric vehicle can be reduced by about 1,000 yuan, and 100,000 electric vehicles can save about 100 million yuan in related battery costs.
Jiang Zhaoru, chairman of Hunan Xiangtou Jintian Aluminum Industry Co., Ltd., revealed that at present, it is co-leading the drafting of the group standard of the China Association of Automobile Manufacturers “performance requirements and test methods for aluminum-based composite brake discs for pure electric passenger vehicles” with the Guangzhou Automobile Engineering Research Institute. , it is expected that this standard is expected to be released in the second half of this year. The release of the group standard will also fill the domestic standard for aluminum-based composite brake discs for new energy passenger vehicles. At the same time, they also formed research and promotion alliances with new energy vehicle companies such as GAC, BAIC, SAIC, BYD, NIO, and Xpeng to jointly promote the implementation of new materials and new technology brake discs.