Full scale trials for qualification of the manufacture of the ITER TF coils in Japan
•High accuracy conductor winding of 0.1% was achieved in TF coil fabrication.•Conductor elongation due to heat treatment satisfied with the expected value of 0.06%±0.02%.•Commissioning of a transfer tooling without adding strain to conductor was completed.•Commissioning of a conductor insulation and...
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Published in | Fusion engineering and design Vol. 109-111; pp. 574 - 580 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
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Elsevier B.V
01.11.2016
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Abstract | •High accuracy conductor winding of 0.1% was achieved in TF coil fabrication.•Conductor elongation due to heat treatment satisfied with the expected value of 0.06%±0.02%.•Commissioning of a transfer tooling without adding strain to conductor was completed.•Commissioning of a conductor insulation and CP welding was successfully completed.
JAEA performed full-scale trials to qualify and optimize manufacturing procedure of TF coil fabrication prior to series production. In the full-scale trials, conductor winding, heat treatment, conductor transfer, conductor insulation and cover plate (CP) welding trials were performed to resolve some technical issues and to demonstrate the fabrication procedure. The followings are major achievement. (1) High accuracy conductor winding of 0.01%, (2) the evaluation of 0.06% conductor elongation due to heat treatment, (3) conductor transfer in a radial plate (RP) groove with addition strain under 0.1%, (4) conductor insulation without breakage of the insulation tape and (5) flatness of 2mm of the double pancake (DP) by CP welding. Then JAEA started the 1st TF coil fabrication from March 2014, and has already completed ten conductor windings and heat treatment of nine windings. |
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AbstractList | •High accuracy conductor winding of 0.1% was achieved in TF coil fabrication.•Conductor elongation due to heat treatment satisfied with the expected value of 0.06%±0.02%.•Commissioning of a transfer tooling without adding strain to conductor was completed.•Commissioning of a conductor insulation and CP welding was successfully completed.
JAEA performed full-scale trials to qualify and optimize manufacturing procedure of TF coil fabrication prior to series production. In the full-scale trials, conductor winding, heat treatment, conductor transfer, conductor insulation and cover plate (CP) welding trials were performed to resolve some technical issues and to demonstrate the fabrication procedure. The followings are major achievement. (1) High accuracy conductor winding of 0.01%, (2) the evaluation of 0.06% conductor elongation due to heat treatment, (3) conductor transfer in a radial plate (RP) groove with addition strain under 0.1%, (4) conductor insulation without breakage of the insulation tape and (5) flatness of 2mm of the double pancake (DP) by CP welding. Then JAEA started the 1st TF coil fabrication from March 2014, and has already completed ten conductor windings and heat treatment of nine windings. |
Author | Ando, Shinji Yamane, Minoru Mizutani, Takumi Hemmi, Tsutomu Nakano, Toshihide Matsui, Kunihiro Kajitani, Hideki Takano, Katsutoshi Koizumi, Norikiyo |
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Cites_doi | 10.1016/j.fusengdes.2008.12.105 10.1109/TASC.2008.921872 |
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References | Koizumi (bib0015) 2009; 84 Iguchi (bib0010) 2012; 22 Koizumi, Nakajima, Matsui (bib0005) 2008; 18 Koizumi (10.1016/j.fusengdes.2016.02.043_bib0005) 2008; 18 Koizumi (10.1016/j.fusengdes.2016.02.043_bib0015) 2009; 84 Iguchi (10.1016/j.fusengdes.2016.02.043_bib0010) 2012; 22 |
References_xml | – volume: 84 start-page: 210 year: 2009 end-page: 213 ident: bib0015 article-title: Critical issues for the manufacture of the ITER TF coil winding pack publication-title: Fusion Eng. Des. contributor: fullname: Koizumi – volume: 18 start-page: 475 year: 2008 end-page: 478 ident: bib0005 article-title: Results of R&D on ITER-TF winding critical issues publication-title: IEEE Trans. Appl. Supercond. contributor: fullname: Matsui – volume: 22 year: 2012 ident: bib0010 article-title: Development of structures for ITER toroidal field coil in Japan publication-title: IEEE Trans. contributor: fullname: Iguchi – volume: 84 start-page: 210 year: 2009 ident: 10.1016/j.fusengdes.2016.02.043_bib0015 article-title: Critical issues for the manufacture of the ITER TF coil winding pack publication-title: Fusion Eng. Des. doi: 10.1016/j.fusengdes.2008.12.105 contributor: fullname: Koizumi – volume: 22 year: 2012 ident: 10.1016/j.fusengdes.2016.02.043_bib0010 article-title: Development of structures for ITER toroidal field coil in Japan publication-title: IEEE Trans. contributor: fullname: Iguchi – volume: 18 start-page: 475 year: 2008 ident: 10.1016/j.fusengdes.2016.02.043_bib0005 article-title: Results of R&D on ITER-TF winding critical issues publication-title: IEEE Trans. Appl. Supercond. doi: 10.1109/TASC.2008.921872 contributor: fullname: Koizumi |
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Title | Full scale trials for qualification of the manufacture of the ITER TF coils in Japan |
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