Title :
Toroidal field coil insulation for BPX
Author :
Snook, P.G. ; McManamy, T.J.
Author_Institution :
Princeton Plasma Phys. Lab., NJ, USA
fDate :
30 Sep-3 Oct 1991
Abstract :
To aid in the BPX (Burning Plasma Experiment) toroidal field assembly process, the coils will be bonded together by the turn to turn insulation. The turn to turn insulation consists of Spaulrad-S sheet material with two layers of S-glass cloth on each side; the coil assembly will be vacuum pressure impregnated with epoxy. Preliminary irradiation and mechanical testing has been performed on specimens made from Shell Chemical Epon Resin 9405/Curing Agent 9470. Spaulrad-S is a high-pressure laminate of polyimide resin reinforced with S-glass (boron free) cloth. This material was specifically developed for high radiation resistance in conjunction with good electrical/mechanical properties. Butt joints in Spaulrad sheets will be required to obtain a single sheet in the size required by BPX. U-shaped cuffs pre-molded from 0.032-in Spaulrad material will insulate the turn edges. The cuffs are machined for a butt/lap joint that will allow for complete coverage around each turn
Keywords :
fusion reactor materials; fusion reactor theory and design; insulation; BPX; Burning Plasma Experiment; S-glass cloth; Shell Chemical Epon Resin 9405/Curing Agent 9470; Spaulrad-S sheet material; U-shaped cuffs; butt/lap joint; coil insulation; complete coverage; epoxy; high radiation resistance; high-pressure laminate; irradiation; mechanical testing; polyimide resin; toroidal field assembly process; turn edges; vacuum pressure; Assembly; Bonding; Chemicals; Coils; Insulation; Performance evaluation; Plasma materials processing; Resins; Sheet materials; Testing;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218906
