关键词: HL-2M 装置；中心螺旋管线圈；结构设计；制造工艺 

Abstract: The central solenoid (CS) coils of HL-2M tokamak are divided into alternately wound two groups, 
i.e., groups A and B, the inner and outer layers in each group are axially reversely wound, and the leads of the two 
groups are drawn out symmetrically. During the manufacturing process of the CS coils, brazing process of the 
hollow copper wire, insulation wrapping process, winding process, jumper connection of inner and outer layer 
process, heating and curing process and other tests were carried out. The made coils meet the design requirements 
of the main insulation withstand voltage of 60kV and the inter-turn withstand voltage of A/B group of 1kV. 

Key words: HL-2M tokamak, Central solenoid coil, Structure design, Manufacturing process