| 摘要 |
PURPOSE:To obtain F class insulation easily by using a synthetic resin enamel wire, which is excellent in hydrolysis resistance, chemical resistance and solvent resistance, as a winding material, using an insulating material, in which a tetrafluoroethylene resin film of fixed thickness is pasted to a polyester film base material of fixed thickness as inter-ground and interphase insulators, impregnating water-soluble insulating varnish and curing the varnish. CONSTITUTION:A polyester film of 0.075-0.50mm. thickness is used as the base materal 71, and a protective agent 72 consisting of the tetrafluoroethylene resin film of 0.010-0.100mm. thickness is pasted to both surfaces of the polyester film, thus obtaining the insulating material 7. The insulating material is bent so that the section is formed to a U shape to form a slot insulator 8, the slot insulator is entered into a clot 2, the inside of the slot is filled with winding 9 consisting of the synthetic resin enamel wire such as an ester amide wire excellent in hydrolysis resistance, chemical resistance and solvent resistance, and an arcuate insulating wedge 10 is driven in to fix the winding. A thermo-setting resin 11 is impregnated, and cured at 130-160 deg.C. |
