| 摘要 |
PURPOSE:To arrange so that friction heat caused by a gap with a support device may be reduced and the penetration of friction heat be minimized to improve stability by covering part of the surface of a superelectroconductive coil with a heat insulation material consisting of electric insulation material having low thermal conduction factor and low friction coefficient. CONSTITUTION:Superelectroconductor 12 is wound around, an insulation cloth 13 which is woven in electric insulation wire is inserted in between layers and on a surface, and insulation member 14 consisting of electric insulation material having low thermal conduction factor and low friction coefficient is used to cover part of the surface of the said insulation cloth. Following this process, the entire structure is impregnated in synthetic resin 15 so that it may be formed into a monoblock. Thus a superelectroconductive coil 11 is constituted. As heat insulation material 14, stainless steel sheet or aluminium sheet whose part is coated with tetrafloroethylene, is used and the surface of a coil 11 is covered in such manner that the coated part may be exposed on the surface. In this way, friction heat can be reduced, the penetration of friction heat be minimized and the stability of action be improved. |
