China's structural components industry

The structural components industry of Chinese spacecraft has achieved industrial leap through technological innovation in the past decade, with the core driving force of material innovation, process breakthroughs, and ecological synergy. On the material side, high-strength and high modulus carbon fiber composite materials are widely used, reducing the weight of satellite and rocket structures by 30% -50% and significantly improving the payload ratio; On the manufacturing side, metal additive manufacturing (3D printing) achieves integrated forming of complex components. For example, the 'Qiancheng-1' satellite adopts a super million lattice structure, reducing the number of components from over a hundred to five, compressing the development cycle to one month, and shortening the manufacturing cycle of key components such as engine nozzles by 80%. The 211 Factory of China Aerospace Science and Technology Corporation (CASC) has taken the lead in realizing the engineering application of arc fuse additive manufacturing. The installation of an 80000 ton forging press by China National Machinery Industry Corporation (Sinomach) has reduced the cost of rocket ring components by 60%. The collaborative mechanism of design and manufacturing has been deeply implemented, and the joint research and development of 'one department+211 factories' has saved a total cost of 38 million yuan and increased production efficiency by more than 30%. The construction of the collaborative ecosystem of the industrial chain is accelerating, and the Aerospace Science and Technology Group is leading the way to open up the 'design manufacturing verification' closed loop, driving the participation of over a hundred private enterprises upstream and downstream. The localization rate has exceeded 90%, promoting the transition of commercial aerospace from 'single point breakthrough' to 'system empowerment'.