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Establishment of production process of JK2LB jacket section for ITER CS

ITERセンターソレノイドに用いられるJK2LBジャケットの製造工程の確立

尾関 秀将; 濱田 一弥; 高橋 良和; 布谷 嘉彦; 河野 勝己; 押切 雅幸; 齊藤 徹; 手島 修*; 松並 正寛*

Ozeki, Hidemasa; Hamada, Kazuya; Takahashi, Yoshikazu; Nunoya, Yoshihiko; Kawano, Katsumi; Oshikiri, Masayuki; Saito, Toru; Teshima, Osamu*; Matsunami, Masahiro*

JAEA is in charge of procuring Center Solenoid (CS) conductor in ITER project. CS conductor is Cable-In-Conduit type, and conduit is also called jacket. The cross-sectional shape of CS jacket is circle-in-square type, whose outer dimension is 51.3 mm and inner diameter is 35.3 mm. The length of one CS jacket section is 7 m, and the necessary total length of CS conductor is about 43 km. CS coil is expected to suffer high electro-magnetic force, so JAEA developed JK2LB, which is modified stainless steel expected to better characteristics of fatigue and thermal contraction in 4 K than SUS316LN, in cooperate with Kobe Steel, Ltd. The remaining problem was to establish production process of jackets which satisfy dimensional and mechanical requirement in ITER consistently, and also, Non-Destructive Examination (NDE) by ITER-original criteria. To carry out the R&D for above, production of dummy CS jackets were executed and these jackets were fabricated successfully. The results are reported.

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パーセンタイル:29.88

分野:Engineering, Electrical & Electronic

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