| 摘要 |
PURPOSE:To enable resin impregnation through utilizing vacuum pressure generated upon evacuation without loss by constructing a pressure container for sealing a superconductive coil from a bobbin and a pipe joined thereto. CONSTITUTION:After a superconductive coil 2 is wound about a stainless bobbin 1, a stainless pipe 4 is airtightly welded to the outer periphery of the bobbin 1. Then, a resin container 5 and a vacuum pump 7 are connected to a resin inlet 8 and outlet 9 provided in the stainless bobbin. Subsequently, first the resin inlet 8 is closed and the interior of the pressure container, formed by the outlet 9 and both of 1 and 4, is exhausted by the vacuum pump 7. Next, when the vacuum degree inside the container reaches a predetermined value, the resin inlet 8 is opened, and a defoamed resin put in the container beforehand is drawn into the superconductive coil 2 by suction. |
