The three astronauts carried by the Shenzhou 13 spacecraft carried out a six-month space journey. The time span is unique in the history of our country. The aluminum alloy material used on the Shenzhou 13 spacecraft is required to be absolutely stable and reliable. Uniform organization, stable performance, process and parameter curing are required, and quality assurance requirements are foolproof.
The aluminum alloy materials provided by Southwest Aluminum for spacecraft and rockets cover multiple categories and more than 10 specifications such as forgings, plates, profiles, pipes, etc. They are mainly used for connecting frames, middle frames, end frames and surfaces of manned spacecraft. The main structure and key parts of the launch vehicle's transition ring, transition frame, storage tank, etc., account for more than 60% of the total amount of aluminum supplied. Among them, all the spacecraft skins, side wall metal shells, table and chair metal structures, portable water storage brackets, upper cargo cabinet left panels, track compartment shell structures, oil and gas circuits, and other aspects of aluminum are 100% "Southwest Aluminum", a certain type of diameter aluminum forged ring for the main structural parts of the arrow body, is also exclusively supplied by Southwest Aluminum. These high-alloyed aluminum materials have the characteristics of many varieties and specifications, large component sizes, complex shapes, and difficult processes. Southwest Aluminum has effectively solved a series of process problems, obtained a series of scientific research results such as melting and casting, thermal processing, and heat treatment, and conquered materials. Many key technical difficulties in R&D and production. Since the beginning of this year alone, "Southwest Aluminum" has successively assisted the successful launch of the "Tianhe" core warehouse, "Tianzhou II", "Shenzhou 12" and "Tianzhou III".
Dongqing used the aluminum alloy materials for the orbital cabin shell structure, skin, return cabin sidewall metal shell, seat metal structure, portable water storage bracket, and upper load cabinet of the Shenzhou 13 spacecraft this time. As an exclusive supply, it has once again set up a silver backbone for our country's exploration of the space world. In order to overcome the problem that the toughness of a certain alloy sheet used on the Shenzhou 13 spacecraft is not up to standard, the Dongqing R&D team actively benchmarked with advanced units, summarized and refined high-quality experience, summarized and solidified the process operation flow, and realized the high-quality delivery of the alloy sheet . The aluminum alloy material provided by Dongqing has the characteristics of high strength, high toughness, corrosion resistance and superplasticity. It can resist huge pressure, temperature difference and gravity problems during flight, and can effectively reduce the strength loss of the material and reduce the weight of the aircraft body. , Is the best choice to ensure the success of this spaceflight.
Northwest Aluminium has provided rods for valve housings and industrial profiles for stringers for the Long March 2 F-Yao 13 rocket. The profile has a large wall thickness difference and a complex shape, and ordinary processing methods are difficult to ensure high-precision geometric tolerances. Northwest Aluminum adopts special materials and special methods to ensure high precision; the extrusion process is optimized during the production of bars, and the ratio is accurate. Trace elements ensure uniform grain refinement. On the Shenzhou 13 manned spacecraft, there are bar materials for cabin turntables with good thermal strength and high strength provided by Northwest Aluminum, as well as industrial profiles with medium strength, good processing performance, corrosion resistance, and welding performance. High-precision aluminum alloy materials such as the cushion material of the return cabin seat.
Entering the first year of the "14th Five-Year Plan", Chinalco's high-end manufacturing has given full play to its advantages in technological innovation, and has increased the technological transformation of existing production equipment to ensure the development of China's aerospace industry from the improvement of equipment accuracy and product performance. R & D and production of more critical aluminum to serve the national strategy.