The research and industrialization project of aluminum alloy car body profiles for Jungle aluminum high-speed rail aims at solving and utilizing key core technologies such as horizontal casting of large diameter ingot hot top, electromagnetic stirring, online degassing and slag removal, ingot gradient heating and isothermal extrusion technology, multi roll precision combined aluminum profile correction, design and manufacturing of large complex wide hollow wallboard molds, It has successfully solved the ultra-high requirements for the technical indicators such as fatigue performance, welding performance, internal organization performance and dimensional accuracy of large body profiles of high-speed rail vehicles, formed the national standards and technical specifications for body profiles for rail transit in China, and developed a series of universal body profiles for high-speed rail transit.

All performance indexes of the project products exceed the requirements of national standards and enterprise standards. It has been applied to the manufacturing of 200-380Km/h high-speed trains and the R&D of 400-500Km/h high-speed trains. It has been widely used in rail transit projects such as Wuhan Guangzhou Line and Shanghai Nanjing Line, completely replacing imports, and its technology has reached the international leading level.

The successful development, promotion and application of this project have solved the technical problem of manufacturing high-strength ultra-thin large aluminum alloy car body profiles in China, improved the independent research and development capability in the field of new materials and the level of self-designed manufacturing of rail transit vehicles, broken the foreign technology monopoly and blockade, met the needs of the national railway medium and long-term development planning, and provided strong support for the rapid development of high-speed rail transit, It plays an important role in promoting the international competitiveness of China's high-speed rail transit industry.