Title :
Development of the ITER Toroidal Field Coil Winding Pack in Japan
Author :
Koizumi, N. ; Nakajima, H. ; Matsui, K. ; Hemmi, T. ; Takano, K. ; Okuno, K. ; Hasegawa, M. ; Kakui, H. ; Senda, I.
Author_Institution :
JAEA, Naka, Japan
fDate :
6/1/2010 12:00:00 AM
Abstract :
The authors performed trials and studies to solve the remaining technical problems for manufacturing the ITER Toroidal Field (TF) coil. Cover plate (CP) welding deformation of a side double pancake may achieve specified tolerances with correction of a long wave distortion through the use of a small load, although complicated welding operations are required. In addition, JAEA developed a new procedure for manufacturing a CP at a reduced cost. Straight and curved CPs are fabricated by hot-rolling and cold-drawing and bending the straight CP with sufficient accuracy. Applying these results, JAEA has started procurement of the TF coil, beginning with qualification trials. Manufacture of a full-scale regular RP, finalization of a manufacturing plan and drawings and design of tooling will be completed by the middle of 2011.
Keywords :
Tokamak devices; bending; cold working; drawing (mechanical); hot rolling; superconducting coils; superconducting magnets; welding; ITER toroidal field coil manufacture; ITER toroidal field coil winding pack; bending; cold drawing; cover plate welding deformation; full scale regular radial plate manufacture; hot rolling; side double pancake configuration; Cover plate; ITER; TF coil; winding pack;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2040151
