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Demonstration tests for manufacturing the ITER vacuum vessel

ITER真空容器の製作性確認試験

清水 克祐*; 小野塚 正紀*; 碓井 志典*; 浦田 一宏*; 辻田 芳宏*; 中平 昌隆; 武田 信和; 角舘 聡; 大森 順次; 柴沼 清

Shimizu, Katsusuke*; Onozuka, Masanori*; Usui, Yukinori*; Urata, Kazuhiro*; Tsujita, Yoshihiro*; Nakahira, Masataka; Takeda, Nobukazu; Kakudate, Satoshi; Omori, Junji; Shibanuma, Kiyoshi

ITER真空容器の製作・組立手順を確認するため実施した以下の試験について紹介する。(1)実規模部分モデルにより、製作性を確認した。(2)現地組立作業を確認するため、試験スタンドを製作した。(3)現地溶接時の外壁外側のバックシールについて、3種類の構造について試験した。(4)UTの適用性について試験を実施した。(5)高真空環境機器への浸透探傷試験の適用性について確認した。

To confirm the manufacturing and assembly process of the ITER vacuum vessel (VV), a series of related tests has been conducted. (1) Using a full-scale partial mock-up, fabrication methods are to be examined to determine feasibility. (2) To simulate a series of field-joint assembly operations, a test stand was built. (3) To provide an appropriate shield gas supply on the back side of the outer shell during field-joint welding, three types of back-seal structures have been tested. (4) The applicability of UT methods for volumetric inspection has been investigated. (5) Applicability of Liquid Penetrant Testing as a surface examination for the VV interior surface (i.e. ultra-vacuum side) has been investigated.

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パーセンタイル:39.35

分野:Nuclear Science & Technology

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