Young scientific and technological talents have become the main force in China's aerospace science and technology innovation and development.

On the evening of April 25, the Shenzhou 18 manned spacecraft carrying three astronauts was ignited and lifted off by the Long March 2F carrier rocket and was successfully launched.

From the "Tianwen-1" to the just-launched Shenzhou 18 manned spacecraft, behind these "soaring" scientific and technological achievements are the hard work of young people from Shanghai.

The "Jingfeng Contribution Operation" (referred to as "Jingfeng") team and the members of the "Shenzhou Tianzhou Spacecraft Final Assembly Test Guarantee Success Youth Commando Team" at the 149th Factory of the Shanghai Space Administration carried out digital transformation and upgrading of the process, and in a limited space Tens of thousands of precision components are assembled inside to complete the final assembly and testing tasks of Shenzhou and Tianzhou. Members of the "Load Thermal Control Integrated Youth Commando Team" of the Shanghai Space Administration's 812 Institute put on "heat-proof armor" for these spacecraft and instruments heading for distant space, making them more fearless from high temperatures.

Use the old to lead the new and cultivate new people. After experiencing the test of such major tasks again and again, a group of young people with ideals and skills have grown up, and a young commando team that can take on leading roles and dare to take on responsibilities is being formed.

The "Jingfeng Contribution Action" is the Shanghai economic and information system's strategy to focus on the "big players in the country" and "important players in the city", focusing on major national strategic tasks and the key points of Shanghai's high-quality industrial development. Starting from 2023, it will guide and support industrial youth to serve the overall situation. , leading the system's youth to carry out youth job-building actions around the central work.

The Shanghai Space Administration system adheres to ideological guidance, continuously improves the ideological level and comprehensive quality of young people, conducts solid thematic education for league members and youth, leads young people to inherit and carry forward the aerospace spirit, conducts special party courses to improve young people’s spiritual literacy, strengthens young people’s beliefs, beliefs and confidence, and strengthens responsibility. , condensing the majestic youthful wisdom and strength for the complete success of the space mission.

"Hot" research and development: building a "fire" wall for aerospace equipment

The "Jingfeng" team and the "Load Thermal Control Integration Youth Commando" of the 812 Institute of Shanghai Space Administration are mainly engaged in the development and implementation of the entire industry chain of "materials-components-integration" of aerospace thermal control products. Youth account for 84%.

The spacecraft continuously passes through the sunlit area and the shadow area in space. In the sunlit area, the surface temperature of the spacecraft can reach up to 150°C. When it enters the shadow area, the temperature will drop to below -100°C.

How to ensure that the spacecraft does not malfunction when it travels through harsh environments that are sometimes extremely cold and sometimes extremely hot?

It is necessary to tailor a gold or silver "coat" on the surface of the satellite to effectively block extreme temperature changes outside; lay a "central heating system" covering the entire satellite to provide every "resident" in every "room" of the satellite. Provide a comfortable environment suitable for them.

The Payload Thermal Control Integration Youth Commando has successively participated in the development of aerospace thermal control products represented by major national engineering tasks such as China's space station, lunar exploration and fire detection, and Fengyun Meteorology. Its business also covers missiles, rockets, satellites, spacecraft, aircraft and other aerospace fields as well as domestic and foreign commercial aerospace markets.

Team member Li Yapeng said that the main difficulties in the load thermal control integration task are: first, the heavy burden. They are involved in major models such as manned spaceflight, lunar exploration and Mars exploration; the second is new technology. New technologies, new equipment, and new methods are constantly emerging, and we must continue to learn and actively seek changes; third, time is urgent. In 2023, the team successfully completed the thermal control integration work of more than 80 payloads on 25 satellites, completing one every four days on average. The timeframe is very tight and strict.

They have developed a number of important achievements, including the verification technology of the high-temperature heat shield of the "Tianwen-1" orbiter, which ensured the smooth journey of "Tianwen". The construction of OSR (glass secondary surface mirror thermal control coating) intelligent placement production line has facilitated the high-quality development of the satellite field, and the relevant practical experience has also won the "Shanghai Quality Benchmark".

Team member Pang Le said that every time the orbiter performs key actions such as "acceleration", "steering" and "braking", the instruments and equipment near the engine will be "baked" at 1000°C, and during the long-term cruising stage, they will have to be Faced with the cold black background of the universe as low as -270℃ "frozen". Under such extreme temperature conditions, whether the high-temperature heat shield can withstand the thermal shock of huge temperature differences can be said to determine the success or failure of the mission.

Pang Le led young people with an average age of only 30 years old. After many rounds of simulations and experiments, they pooled their wisdom to tackle a number of technical problems, broke through key technologies such as high-density radiation heating in vacuum containers, and created a comprehensive extreme event tailored for it. "Physical examination", the key characteristics of the product have been fully assessed, successfully ensuring the smooth flight of "Tianwen-1" to Mars.

High temperature heat shield thermal shock test.

The "Load Thermal Control Integration Youth Commando" team of the Shanghai Space Administration's 812 Institute not only has the courage to seek technological breakthroughs, but also continues to pursue the transformation of production models.

The surface of OSR is like a mirror, and its reflective properties will affect the visual comparison effect. During the construction process of the OSR intelligent placement production line based on visual comparison technology, there is no successful experience that can be directly referenced. Guo Cheng, a young man born in the 1990s in the team, took the initiative to "carry the burden" Starting from basic programming development, through technical research, expert consultation, trying a variety of light sources, and repeated debugging in the workshop, I finally found a solution that greatly improved the quality and efficiency of OSR placement.

Team members operate OSR automatic placement equipment.

Li Yapeng said that the "Jingfeng" meritorious action provides young people with a stage for communication, learning, practice, growth and display, so that young people can face and solve difficulties more actively. In the future, he hopes this platform will be bigger and draw more power from it.

In the "Jingfeng" meritorious action, the team members performed well on behalf of Shanshan and actively moved closer to the party organization. They have now been developed into party activists.

The 812 Institute strengthens care and care for young scientific and technological talents. In terms of the transformation and application of scientific and technological innovation achievements, Shanghai Satellite Equipment Research Institute has completed the transformation from "follow-up" assessment to "active" service. The institute organizes exchange and teaching activities on multiple platforms such as the "Qingfeng" Science and Technology Forum, establishes a young doctor alliance, and builds a satellite AIT training center to continuously improve the academic level of scientific and technological talents and create a culture where everyone can become a talent and everyone can achieve their full potential. A good innovative atmosphere for its talents.

On August 12, 2023, the Eighth Institute of Technology carried out the theme activity of "Standing at Thirty". Xu Boming, the former vice president of the Eighth Institute, talked about his experience of growing from a craftsman to the chief designer of satellite engineering, and improved through process improvement. Product quality carries the success or failure of models on its shoulders, and brings its love for the aerospace industry, desire for success, and familiarity with technology to every job position.

"Life is at stake" final assembly

"Manned space flight, human life is at stake."

It is a special requirement of the spacecraft to complete the final assembly task 100% without any mistakes.

From the Shenzhou manned spacecraft to the Tianzhou cargo spacecraft, a group of young people from the 149th Factory of the Shanghai Space Administration have been responsible for the final and most complex final assembly task.

Aerospace youth have become the backbone of China's aerospace development in the future.

In 2023, China's space station will officially enter the application and development stage. The development and production of the Shenzhou-Tianzhou spacecraft and three spacecraft flight tests are important tasks for China's manned space engineering. Multiple models of Shenzhou manned spacecraft and Tianzhou cargo spacecraft are being produced on a rolling basis. The delivery time is tight, the tasks are urgent, and the final assembly and testing workload is heavy. Final assembly and testing in Shanghai, field testing in Beijing, launches at Jiuquan and Wenchang shooting ranges, and multi-region and multi-line collaborative work. Under such a situation, there is an urgent need for a commando team that can overcome difficulties and rise to them. The 149th Factory of the Shanghai Space Administration quickly assembled, integrated across departments, fields and professions, and immediately established the "Youth Commando Team to Ensure Success in the Shenzhou Tianzhou Spacecraft Final Assembly Test", with a total of 57 team members, including 49 young people.

Wang Yifan, a member of the "Jingfeng" team and the "Youth Commando Team to Ensure Successful Assembly and Testing of the Shenzhou Tianzhou Spacecraft" at the 149th Factory of the Shanghai Space Administration, said that thousands of components must be "installed" into the capsule in an orderly manner. Moreover, many processes are irreversible and must be tested to ensure that the status is controllable. The team innovatively carried out the digital transformation and upgrading of the process flow , using process technology and the MES intelligent manufacturing system to upgrade from traditional paper process documents to digital process technology. The MES system records and confirms the production process data in real time, taking photos step by step, interpreting them step by step, and interpreting them step by step. Confirmation, one-click summary and confirmation of the quality data package before leaving the factory. It is through precise management and strengthened process control that we can ensure zero defects in the final product.

In this process, through the guidance of experienced seniors, the new forces grew rapidly.

Chen Wei, who was born in the 1960s, participated in almost all the final assembly and launch missions of the Shenzhou manned spacecraft and Tianzhou cargo spacecraft. With his superb final assembly operation skills, he won the "National May 1st Labor Medal", "National Technical Expert" and other awards. An honor.

When talking about "only making one model in his life", Chen Wei felt deeply. He said, "This life is worth it, but it will depend on the young people later." Under his careful guidance, Shen Xin, a "post-90s generation", grew rapidly and became a "super first-class" general assembly operator like his master.

And Shen Xin also passed on his serious and responsible spirit to the younger "post-00s".

As a fully graded spacecraft assembly and testing team, the staff in the position lead the new ones in a master-to-apprentice mode. They improve their skills based on the development content and constantly improve the talent training model, transforming from "full-time and full-time" to "full-time and full-time". The all-round development of "one post with multiple capabilities" breaks down the barriers between positions, improves the team's comprehensive capabilities from both technology and skills, and improves personnel energy efficiency.

Huanyu Wentian, realize the dream of spaceship. The final assembly test of the Shenzhou Tianzhou spacecraft at the 149th Factory of the Shanghai Space Administration ensures success. The young commando team uses the ordinary to create greatness, pursuing the dream of aerospace, and never stops.

The 149th Factory of the Shanghai Aerospace Administration is driven by model demand to improve and optimize the final assembly technology. Guided by the party's innovation theory, it gives full play to the role of young members of the team as a new force and commando, improves the efficiency and quality of final assembly and testing work, and promotes work Achieve new breakthroughs and new developments.