According to Xinhua news agency, the CF3 fuel assembly of "hualong-1" nuclear power plant will be put into commercial use for the first time. The key component of the CF3 fuel assembly - n36 zirconium alloy clad tube is developed by Chinese scientists after 36 years. It is the first time to install a "Chinese core" on "hualong-1" It is understood that the N36 zirconium alloy clad tube is a thin tube with a diameter of 9.5mm, a tube wall of 0.57mm and a length of nearly 4m, which is used for loading nuclear fuel**
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As the fuel coating material for water-cooled reactors, this thin tube is resistant to high pressure, high temperature, corrosion and strong radiation, which has been monopolized by a few countries before**
Zhaowenjin, 69, is the chief designer of the zirconium alloy research and development project of China Nuclear Power Research and Design Institute.
He started basic research on zirconium alloy in 1986. After years of efforts, he and his team finally successfully developed N36 zirconium alloy clad tube.
This major research achievement was achieved through the efforts of several generations, and the scientific research team experienced a lot of hardships and setbacks in the process.
During the research and development period, even if the pipe wall only has micron cracks, it will cause major safety hazards. For this reason, they often work late into the night
Zhaowenjin said: "some people suggested to follow the foreign process route. I don't agree. We insisted on our own, which proved to be more reasonable in the end."
Today is the 6th National Science and technology workers' day. Thank generations of scientists and technicians for their efforts in China's science and technology development, and pay tribute to them
