The TPX superconducting magnet fabrication process
- Princeton Univ., NJ (United States). Plasma Physics Lab.
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
The TPX Toroidal Field (TF) and Poloidal Field (PF) Coil use both Nb{sub 3}Sn and Nb-Ti internally cooled, cabled superconductor (ICCS). A prime consideration in the design of the coils was the minimization of joints in the conductor cable to save space, reduce heating losses and increase reliability. Therefore, the traditional double pancake approach was discarded in favor of the continuously wound oil. The recently developed use of the roll bender in winding the coils permits the backwinding which is required in the geometry. The Nb{sub 3}Sn TF coils, the central solenoid coils and inner-most PF coils require the wind-react-insulate sequence. The Nb-Ti outer PF Coils are also insulated after the coils are wound because the insulation system used in all the coils requires the insulation of rigid polyimide sheet between turns and pancakes before Vacuum Pressure Impregnation (VPI) of the glass epoxy system. This paper proposes and discusses a manufacturing plan based upon the use of roll bender in the winding of the coil, and a special fixture to spread apart the turns of the coil and permit the application of the insulation materials prior to VPI.
- Research Organization:
- Princeton Univ., NJ (United States). Plasma Physics Lab.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 10192308
- Report Number(s):
- PPPL-CFP-2968; CONF-931018-40; ON: DE94002228; TRN: 94:000084
- Resource Relation:
- Conference: Symposium on fusion engineering,Hyannis, MA (United States),11-15 Oct 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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