| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for revitalization without decomposing a degraded insulating layer of an armature. SOLUTION: The armature 1 whose insulating layer is degraded through aging is so submerged in a liquid insulating material under vacuum as to be impregnated with an insulating substance. The liquid insulating substance is solidified while the armature is rotated in a chamber 2 in which a heated air is circulated, thus a new insulating layer is formed. When the liquid insulating substance is solidified while the armature 1 is rotated, a part where the insulating substance is easy to flow out is irradiated with far infrared ray R for faster solidification than other parts. COPYRIGHT: (C)2003,JPO
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