Development of fabrication technology for ITER vacuum vessel

Nakahira, Masataka; Shibanuma, Kiyoshi; Kajiura, Soji*; Shibui, Masanao*; Koizumi, Koichi; Takeda, Nobukazu; Kakudate, Satoshi; Taguchi, Ko*; Oka, Kiyoshi; Obara, Kenjiro; et al.

JAERI-Tech 2002-029, 27 Pages, 2002/03

JAERI-Tech-2002-029.pdf:2.04MB

The ITER vacuum vessel (VV) R&D has progressed with the international collaborative efforts by the Japan, Russia and US Parties during the Engineering Design Activities (EDA). Fabrication and testing of a full-scale VV sector model and a port extension have yielded critical information on the fabrication and assembly technologies of the vacuum vessel, magnitude of welding distortions, dimensional accuracy and achievable tolerances during sector fabrication and field assembly. In particular, the dimensional tolerances of 3 mm for VV sector fabrication and 10 mm for VV sector field assembly have been achieved and satisfied the requirements of 5 mm and 20 mm, respectively. Also, the basic feasibility of the remote welding robot has been demonstrated. This report presents detailed fabrication and assembly technologies such as welding technology applicable to the thick wall without large distortion, field joint welding technology between sectors and remote welding technology through the VV R&D project.

A Study for the improvement on knife-edge-type metal-seal flanges

Obara, Kenjiro; Nakamura, Kazuyuki; Murakami, Yoshio; *; *; *; *

Shinku, 32(1), p.2 - 13, 1989/01

https://doi.org/10.3131/jvsj.32.2

no abstracts in English

Japanese contributions to IAEA INTOR Workshop, Phase two A,Part 3; Chapter VII; Configuration and maintenance

Iida, Hiromasa; *; *; Adachi, Junichi*; *; *; Hamajima, Takataro*; Hatayama, Akiyoshi*; *; *; et al.

JAERI-M 88-011, 261 Pages, 1988/02

JAERI-M-88-011.pdf:6.44MB

no abstracts in English

Conceptual design study of fusion experimental reactor (FY86 FER); Critical issues of reactor configuration/structure design

; ; Mizoguchi, Tadanori*; *; *; *; Watanabe, Takashi*; Mori, Seiji*; Adachi, Junichi*; *; et al.

JAERI-M 87-138, 155 Pages, 1987/09

JAERI-M-87-138.pdf:3.62MB

no abstracts in English

Japanese Contributions to IAEA INTOR Workshop,Phase Two A,Part 2; Chapter X:Nuclear

; ; *; ; *; Kikuchi, Yasuyuki; ; ; *; *; et al.

JAERI-M 85-082, 352 Pages, 1985/07

JAERI-M-85-082.pdf:6.6MB

no abstracts in English

Japanese Contributions to IAEA INTOR Workshop,Phase 2A; Chapte VII:Impurity Control and First Wall-Engineering

; ; ; Nakamura, H.; ; ; ; ; ; *; et al.

JAERI-M 82-174, 309 Pages, 1982/11

JAERI-M-82-174.pdf:5.54MB

no abstracts in English