HT-7U纵场磁体的真空压力浸渍

Vacuum Pressure Impregnation for Toroidal Magnet Coils

主要通过模拟匝间流动试验、短样试验和长样试验等 ,探求低温超导托卡马克HT 7U中纵场磁体线圈的绝缘层真空压力浸渍的工艺参数 ,确定工艺流程 ,并以模型线圈试验的电性能和液氦温度下的力学性能来验证工艺参数及工艺流程的可靠性。

Parameters involved in the fabrication process of the cryogenic super conducting magnet coils in HT 7U by vacuum pressure impregnation (VPI) were calculated by simulating the flow characteristics of the epoxy resins in turn compressed glass fiber tape,in a short sample and in a long sample,respectively,so as to optimize the fabrication process.The technological feasibility of the optimized process was strictly tested by measurement of the electric and mechanic properties at cryogenic temperature of the model coils.