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Yamamoto, Tomohiko; Okamura, Shigeki; Hirayama, Tomoyuki*; Somaki, Takahiro*
Haikan Gijutsu, 65(13), p.1 - 4, 2023/11
The authors are conducting research and development on three-dimensional seismic isolation devices to improve the earthquake resistance of future sodium-cooled fast reactors. This paper introduces an overview of the device and how to use it.
Yamaguchi, Yoshihito; Li, Y.
Haikan Gijutsu, 63(12), p.22 - 27, 2021/10
no abstracts in English
Kubo, Shinji
Haikan Gijutsu, 58(12), p.7 - 14, 2016/10
no abstracts in English
Kawamura, Hiroshi
Haikan Gijutsu, 58(7), p.1 - 8, 2016/06
no abstracts in English
Takano, Katsutoshi
Haikan Gijutsu, 57(10), p.7 - 12, 2015/09
Japan Atomic Energy Agency is responsible for 9 TF coils and 19 TF coil structures as Japanese domestic agency in the ITER project. To apply the special environment, which is the high magnetic field and the cryogenic temperature of 4 K, high strength and high toughness are required for materials of the superconducting coil. Thus, fully austenite stainless steel is selected. Advanced welding technology is needed to control the crack sensitivity by welding and ensure high reliability of welding. To solve these issues, trials for the optimization of the chemical composition and the welding condition are conducted. As a result, high quality of welding for fully austenite stainless steel was successfully achieved. By applying this result, manufacturing of actual TF coils for the ITER was started.
