摘要
通常在低温密封情况下,密封件会出现热涨冷缩、低温脆性以及材料微结构上的相变等现象,在设计过程中,要特别关注密封件的结构、材料、密封预紧力等关键因素在低温环境下的适用性问题。对丁腈橡胶材料的低温特性进行试验分析研究,结合相关实验数据总结了丁腈橡胶材料的低温特性,具有一定学术意义和工程参考价值。
At low temperature seals will appear some phenomena, such as thermal expansion, low temperature brittleness and phase change of the material microstructure. Special attention should be paid to the applicability of key factors such as structure, material and pretightening force of seals at low temperature. It is a certain academic significance and engineering reference value that summed up the cryogenic property of NBR sealing materials by combining with analysis results of cryogenic property test data.
作者
汤致华
TANG Zhi-hua(AVIC Qingan Group Co.,Ltd.,Xi'an 710077,China)
出处
《内燃机与配件》
2020年第4期220-221,共2页
Internal Combustion Engine & Parts
关键词
橡胶密封
低温特性
试验
耐寒系数
rubber seals
cryogenic property
test
anti-cold coefficiency
