NDLI: Fabrication Process Qualification of TF Insert Coil Using Real ITER TF Conductor

Content Provider	IEEE Xplore Digital Library
Author	Ozeki, H. Isono, T. Kawano, K. Saito, T. Kawasaki, T. Nishino, K. Okuno, K. Kido, S. Semba, T. Suzuki, Y. Ichimura, T. Inoue, S. Kuchiishi, Y. Hasegawa, H. Smirnov, A. Martovetsky, N.
Copyright Year	2002
Abstract	JAEA is fabricating the toroidal field insert coil (TFIC) in cooperation with Hitachi, Ltd. This solenoidal coil has about 50 m of ITER TF conductor wound in a 1.44-m diameter. In preparation for fabricating the TFIC, fabrication trials of windings, removal of Cr plating of the cable and welding of the terminal sleeve were performed for process qualification. The winding trials were accomplished without breaking any of the superconducting strands. In the trials to remove the Cr plating from the cable, HCl-soaked unwoven cloth was used, and the surface of a strand selected from the cable was confirmed by magnification to be free of Cr plating. In trials to fabricate termination, using electron beam welding (of OFHC copper and SS316LN) and fillet-welding (of SS316LN and SS316LN using JK2LB weld wire), tensile tests of the welds were conducted at room temperature and 4 K, and ultimate tensile strength values equivalent to that of the base metal of the weld were obtained. Also these welds passed test items of JIS Z3040 code, so the weld procedures were qualified. During fillet-welding the maximum temperature of the cable under the weld was 120 °C, not high enough to damage the cable. From the results obtained, the main processes involved in TFIC fabrication were established and qualified.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	4
Page Count	4
File Size	875553
File Format	PDF
ISSN	10518223
Volume Number	25
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Welding Conductors Copper Cable shielding Coils Superconducting cables Temperature measurement TF Insert Coil Electron beam welding Fillet-welding ITER TF conductor TF insert coil (TFIC) fillet-welding toroidal field (TF) conductor
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Russia's Contribution to the ITER TF Magnets

Overview of ITER magnet system and European contribution

Mass Production of ${rm Nb}_{3}{rm Sn}$ Conductors for ITER Toroidal Field Coils in Japan

Cable Rotation and Twist Pitch Variation for ITER TF Conductor in China

Manufacturing and Preliminary Performance Expectations of $hbox{Nb}_{3}hbox{Sn}$ Based Conductors Allocated for the First ITER TF Coil With CICC From Korea

Manufacture and Quality Control of Insert Coil with Real ITER TF Conductor

Modeling techniques for correcting measured data on the ITER toroidal field insert coil

Manufacturing of the ITER TF Full Size Prototype Conductor

Fabrication of an Insert to Measure Performance of ITER CS Conductor

Fabrication Process Qualification of TF Insert Coil Using Real ITER TF Conductor

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