| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a zinc oxide element to possess improved voltage limiting properties and an enhanced withstand discharge current rating to excessive lightning impulses and switching impulses, and to provide granulated power at a low cost by using zinc oxide and antimony trioxide as roasted powder used for the granulated powder. <P>SOLUTION: Zinc oxide and antimony trioxide are mixed together and ground into a mixed slurry (S11); the mixed slurry is dried and broken into pieces (S12); the broken slurry is roasted into roasted powder (S13); the roasted powder is mixed and ground (S14), the ground roasted powder is dried and broken into an additive roasted powder material (S15); the additive roasted powder material, additive metal oxide powder, and pure water are mixed together into an additive slurry (S16); the additive slurry, an organic binder solution, and zinc oxide are mixed, emulsified (S17), deaerated (S18), and dried by spraying (19); and thus the granulated powder for the zinc oxide element as a voltage nonlinear resistor can be manufactured. <P>COPYRIGHT: (C)2004,JPO |
