| 摘要 |
1,063,459. Winding coils. AVCO CORPORATION. Aug. 4, 1964 [July 25, 1963], No. 30570/64. Heading B3A. [Also in Division H1] A superconductive wire 18 of the niobiumzirconium type is fed to an endless belt running between pulleys (23) and to which a non- hardening adhesive has been applied. The belt is twisted between certain pulleys to apply permanent twists to the finished coil and to prevent adhesive coming into contact with the pulley surfaces. Where a plurality of lengths of wire 18 are required, the ends thereof are located in a predetermined region (35) (Fig. 3, not shown). A potting material 48 such as a thermosetting epoxy resin with an alumina filler, is applied to the winding and a P.T.F.E. insulated copper strip 45 is bonded to the winding. The belt (25) is cut to allow the winding to be removed therefrom. A saddle-shaped coil (55) is formed from the winding (Fig. 5, not shown), there being one layer for every 360 degrees of twist imparted during the winding process. In an alternative form the winding is made flat, in which case it is removed from the belt without cutting the latter. |
