电瓷避雷器Issue(4)：38-43,55,7.DOI:10.16188/j.isa.1003-8337.2026.04.005
氧化锌压敏电阻器耐冷热冲击性的影响因素研究
Influencing Factors of the Thermal Shock Resistance of Zinc Oxide Varistor
周庆丰1
作者信息
- 1. 天津凯华绝缘材料股份有限公司 天津 300300
- 折叠
摘要
Abstract
The various influencing factors on the thermal shock resistance of zinc oxide varistor are investi-gated,including epoxy powder encapsulation material,residual flux and cleaning agent,lead diameter of zinc oxide varistor,silicone inner coating,degree of curing of encapsulation material,as well as thermal shock conditions.It has been found that different epoxy powder encapsulation materials have a significant impact.The residual flux can seriously deteriorate the thermal shock resistance,and the cleaning effect of different cleaning agents varies.Insufficient curing of epoxy powder encapsulation material can reduce its resistance to cold and hot impacts.Silicone inner coating,due to poor compatibility with epoxy,will sig-nificantly deteriorate its resistance to cold and hot impacts.Among different thermal shock conditions,the impact is more obvious in the low-temperature zone.关键词
环氧粉末包封料/氧化锌压敏电阻器/助焊剂/耐冷热冲击性Key words
epoxy powder encapsulation material/zinc oxide varistor/flux/thermal shock resistance引用本文复制引用
周庆丰..氧化锌压敏电阻器耐冷热冲击性的影响因素研究[J].电瓷避雷器,2026,(4):38-43,55,7.
