实验室加速腐蚀环境中A286口盖锁的腐蚀行为

发布时间：2018-01-16 21:39

  本文关键词：实验室加速腐蚀环境中A286口盖锁的腐蚀行为　出处：《腐蚀与防护》2017年12期 　论文类型：期刊论文

  更多相关文章： A口盖锁 装配形式 应力腐蚀 接触腐蚀

【摘要】：对安装与未安装两种形式口盖锁进行了实验室加速腐蚀试验,通过蚀坑深度和力矩差(松脱力矩与拧紧力矩的差值)研究了A286口盖锁的腐蚀行为,分析了装配过程及装配应力对口盖锁腐蚀行为的影响。结果表明:安装口盖锁的腐蚀程度明显高于未安装口盖锁的;未安装口盖锁的主要腐蚀形式是接触腐蚀,而安装类口盖锁的主要腐蚀形式是接触腐蚀和应力腐蚀;应力腐蚀对口盖锁腐蚀的影响比接触腐蚀的更大。
[Abstract]:The laboratory accelerated corrosion tests were carried out for both installed and uninstalled seal locks. The corrosion behavior of A286 cap locks was studied by the difference of pit depth and torque (the difference between loosening torque and tightening moment). The effect of assembly process and assembly stress on the corrosion behavior of the cap lock is analyzed. The results show that the corrosion degree of the installed lock is obviously higher than that of the uninstalled lock. Contact corrosion is the main corrosion form of the uninstalled cap lock, while contact corrosion and stress corrosion are the main corrosion forms of the installed cover lock. The effect of stress corrosion on lock corrosion is greater than contact corrosion.
【作者单位】： 中国特种飞行器研究所结构腐蚀防护与控制航空科技重点实验室;
【分类号】：TG172
【正文快照】： 口盖锁作为飞机结构常用的紧固件之一,在飞机维修口盖结构中使用非常多,如发动机舱口、助力器舱口盖等。口盖锁可用来快速打开或关闭维修口盖,缩短飞机舱口盖的打开和可靠关闭的时间,主要方便飞机的维护、提高飞机维修速率。飞机长期在海洋环境中服役,口盖锁长期面临高盐雾、，

本文编号：1434954