1. stator core assembly: arrange the cores neatly, and then tie them with steel wires to ensure no displacement. Then put the tied iron core into the stator mold.

2. Winding: Winding the wound coil along the iron core to ensure that the number of layers, turns and gaps of the coil meet the design requirements.

3. Winding fixation: After the coil is wound, fix the coil on the iron core with winding glue or adhesive tape to ensure that the coil will not be loose.