| 摘要 |
PROBLEM TO BE SOLVED: To provide an epoxy resin cast article which is free from such a problem as peeling or cracking of an epoxy resin cast part even when it is confronted with a heat cycle having a large temperature difference. SOLUTION: An elastic adhesive layer 4 is provided on the outer surface of a vacuum valve body 2 composed of an upper copper conductor part 21, a lower copper conductor part 22, an upper stainless steel part 23, a lower stainless steel part 24 and a ceramic part 25. Moreover, an adhesion reinforcing part 5 coated with a primer and containing an inorganic powder 51 is provided on the outer surface of the layer 4 and the epoxy resin cast part 3 is provided thereon. In place of the adhesion reinforcing part 5, in another way, the outer surface of the elastic adhesive layer 4 is shaped in a rugged pattern, and the epoxy resin cast part 3 is provided thereon. COPYRIGHT: (C)2005,JPO&NCIPI
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