JPS64708A - Manufacture of superconductive ceramic coil - Google Patents

Abstract

PURPOSE:To obtain a coil consisting of a superconductive ceramic simply and easily even from a ceramic having brittle properties by applying a superconductive ceramic material after sintering or before sintering to a core as particles and molding the core after application to a coil shape. CONSTITUTION:An applying tank 23 is isolated from the outside air under the state in which a feed roller 17, on which a core 11 is wound, and a wind-up roller 19 are disposed onto the applying tank 23. The inside of the applying tank 23 is evacuated or a proper gas is introduced arbitrarily after evacuation. The core 11 is moved continuously or intermittently with the revolution of the rollers 17 and 19 While the particles of a superconductive ceramic material shown in the arrow (b) are blown off from an applying device 21 and applied onto the surface of the core 11 in a section between the feed roller 17 and the wind-up roller 19 in desired film thickness. The position of the core 11, which is wound by the wind-up roller 19 and on which the superconductive ceramic material 13 is applied, is displaced relatively and continuously or intermittently as shown in the arrow (c) and wound.