The admission notice from Xinhua All Media+| Huo Emerging from the Circle Witnessing China's Scientific Research "Counterattack Road" Steel | Beijing University of Science and Technology | Emerging from the Circle
Admission letter from Beijing University of Science and Technology.
Beijing, July 6th (Xinhua) - Using steel as paper and light like a mirror, the admission notice for undergraduate students at Beijing University of Science and Technology has recently become popular.
"This is also too beautiful!" "You can cherish the admission letter for a lifetime!" In addition to the envy of netizens brushing the screen, many students from Peking University are also hoping to "trade the old for the new". But what is little-known is that behind this "5G steel" admission letter, there is a story of the Chinese research team's "comeback" from catching up to leading.
![The admission notice from Xinhua All Media+| Huo Emerging from the Circle Witnessing China's Scientific Research "Counterattack Road" Steel | Beijing University of Science and Technology | Emerging from the Circle](https://a5qu.com/upload/images/aa4516706451b277bc127403017fe2a3.jpg)
Admission letter from Beijing University of Science and Technology.
Road navigation, video live streaming, ordering takeout... These mobile applications have rapidly changed our lives with the advancement of communication technology. But while we enjoy technological progress, China has been unable to independently produce certain basic steels required by communication technology.
The thickness requirement for ultra-thin low-carbon steel in the 4G era is 0.12 millimeters, while in the 5G era, the requirement has been raised to 0.10 millimeters. The thinner the steel, the greater the difficulty of rolling. For a long time, the rolling process of 0.10mm ultra-thin steel has been monopolized by foreign enterprises.
![The admission notice from Xinhua All Media+| Huo Emerging from the Circle Witnessing China's Scientific Research "Counterattack Road" Steel | Beijing University of Science and Technology | Emerging from the Circle](https://a5qu.com/upload/images/2d8c1beb5cb0eb299364db95b90f7897.jpg)
In order to achieve independent and controllable development in key fields and technologies, Shougang Group and Beijing University of Science and Technology formed a research and development team in 2013 to develop "5G steel" under efficient continuous rolling technology. From the beginning, the research team set their goal to surpass the world's advanced level by 0.07 millimeters.
A team of 600 people spent a full 10 years to achieve this goal.
Fang Yuan is at the research and development site of 5G steel.
![The admission notice from Xinhua All Media+| Huo Emerging from the Circle Witnessing China's Scientific Research "Counterattack Road" Steel | Beijing University of Science and Technology | Emerging from the Circle](https://a5qu.com/upload/images/07fdc3659eb4b3518b39f0d3380fc2c3.jpg)
Fang Yuan is the chief engineer of tinplate at Shougang Technology Research Institute. From the establishment of "5G steel" project to successful research and development, Fang Yuan has personally experienced the bits and pieces of scientific research over the past 10 years. During the research and development process, professors from Fangyuan and Peking University of Science and Technology found that the thickness fluctuation of steel, which is thinner than rice paper, cannot exceed 0.003 millimeters during rolling, otherwise the steel will break due to excessive tension fluctuation during rolling. In order to control these subtle fluctuations, the research team went through countless sleepless nights. In the end, through a series of improvements to the control system, the control response time was reduced to one-third of the original, and the problem was effectively solved.
This uniquely beautiful admission letter is described as a display of achievements after breaking through the bottleneck technology. Fang Yuan stated that currently, the main application in the 5G industry is still steel with a thickness of 0.10 millimeters. Although there are still intermediate processes in the application of 0.07 millimeters of steel, we have prepared more advanced steel materials in advance, and more advanced communication technology is coming towards us.