Manufacturing and welding assembly of the vacuum vessel on JT-60SA
| Autor: | S. Mizumaki, J. Yagyu, Kaname Kizu, Toshihisa Okuyama, Yusuke Shibama, Tamotsu Morimoto, Keiichi Sagawa, Fuminori Okano, Atsuro Hayakawa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Tokamak
Safety factor Offset (computer science) Materials science Mechanical Engineering Mechanical engineering Torus Welding 01 natural sciences 010305 fluids & plasmas law.invention Nuclear Energy and Engineering law Electromagnetic coil Shield 0103 physical sciences Thermal General Materials Science 010306 general physics Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 160:111918 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2020.111918 |
| Popis: | The JT-60SA Vacuum Vessel (VV) was manufactured as the 10 sectors split in the factory and these sectors were weld-assembled as the 360-degree torus with the design offset value of the weld shrinkage. The dimensions as the 10 m scale torus were well controlled regardless of the thin wall thickness of 18 mm and a large amount of welding line due to the double wall structure and 72 port penetrations. The final VV 20-degree sector was installed into the 340-degree sector of the tokamak with the TF coil and the VV Thermal Shield, and the VV was weld-jointed as a torus. This paper reports the design concept to reduce the safety factor and welding amount to achieve the dimension specified, and the result of the VV manufacturing. |
| Databáze: | OpenAIRE |
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