PRESSING METHOD OF INTERNALLY WOUND COIL

摘要

PURPOSE:To reduce the friction and seizure between insulation layers by repeating by turns the processes of correcting the recession and the projection in the radial direction of a coil, pressing in the direction of the axis of the coil and pressing in the radial direction of the coil in a pressing process. CONSTITUTION:A superconductive internally wound coil 1 consists of an adhesive insulation layer 3 against ground provided inside a cylindrical cooler 2 and a coil 4 wound in the axial direction with a rectangular section superconductive wire having insulation coating inside the insulation layer 3. The coil 1 is supported by a supporter 5. A jig 6 for pressing in the axial direction is fixed at the end of the axial direction of the coil 4. A cylindrical rubber elastic film 7, a rigid cylinder 8 and a jig 10 for pressing in the radial direction made of a hollow 9 are fixed inside the coil 4 and the distributed load Pr of the radial direction is applied to the whole surface inside the coil 4 by pushing a pressing medium in the hollow 9 through a mouth piece 8A.