文章摘要
Life Prediction of Rubber O-shaped Sealing Ring with Accelerated Aging Method
Received:May 25, 2023  Revised:May 25, 2023
DOI：10.12136/j.issn.1000-890X.2025.01.0066
Key Words: NBR；O-shaped sealing ring；compression stress relaxation performance retention rate；accelerated aging method；life
Author NameAffiliationE-mail
LIU Xuetong* 山东非金属材料研究所 山东济南 17853246089@163.com 17853246089@163.com 
YANG Jingting 山东非金属材料研究所 山东济南 17853246089@163.com  
WANG Meifang 山东非金属材料研究所 山东济南 17853246089@163.com  
GONG Zhixin 山东非金属材料研究所 山东济南 17853246089@163.com  
HU Jie 山东非金属材料研究所 山东济南 17853246089@163.com  
LIU Guoqing 山东非金属材料研究所 山东济南 17853246089@163.com  
ZHAO Xin 山东非金属材料研究所 山东济南 17853246089@163.com  
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Abstract:
      As nitrile rubber O-shaped sealing ring（referred to as rubber O-shaped ring） as example，a new method of accelerated aging for predicting the life of the rubber sealing ring was proposed.Using the compression stress relaxation performance retention rate as the index for predicting the storage life，the compression stress relaxation tests of the rubber O-shaped ring were conducted at 80，100，110 and 120 ℃，respectively.First，the compression stress relaxation retention rates of the rubber O-shaped ring stored for 3，5，10，15 and 20 years were calculated，and then the acceleration aging time required for the rubber O-shaped ring stored for 3，5，10，15 and 20 years at 80 and 100 ℃ were calculated.
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