电爆管失效模式及影响因素研究  

Failure Modes of Electric Squib and Its Effect Factor

作　　者：涂小珍[1] 韦兴文[1] 王培[1] 周筱雨[1] 王翕[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2012年第1期117-119,共3页Chinese Journal of Energetic Materials

摘　　要：采用加速老化试验技术,在温度为71℃和温度为71℃、相对湿度分别为50%和80%条件下,对某电爆管在老化过程中的失效模式进行了研究。结果表明,老化后,该电爆管压敏电压值均较老化前降低,尤其是经含有湿度的双因素加速老化试验后,其压敏电压值下降更明显,而其电阻、发火时间、输出气体压力等性能指标却无明显变化。通过对电爆管压敏电压下降影响因素研究,结果发现,灌封胶配制不均是导致其压敏电压值在湿度环境中下降的主要原因。The failure modes of electric squib were studied during accelerated life test. The conditions of the aging test were temperature 71 ℃ and temperature 71 ℃, relative humidity 50% and 80%, The results show that the resistanc,fire time and output gass pressure did not change obviously, but the breakdown voltage dropped after accelerated life test. Especially, in the condition of humidity,the breakdown voltage of electric squib dropped significantly. By studying the effect factor to electric squib＇s breakdown voltage,the reason was the inhomogeneous mixing of epoxy resin at the condition of humidity.

关 键 词：军事化学与烟火技术 失效模式 压敏电压 加速寿命试验 

分 类 号：TM54[电气工程—电器]