Life Assessment of the Fluoro-Rubber Sealing Gasket Based on an Accelerated Degradation Test

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Abstract:

The research object is the fluoro-rubber sealing gasket in the sealing structure of a certain underwater launch device, and its service life is predicted through accelerated degradation tests. Accelerated degradation tests were conducted on cylindrical rubber specimens under constant temperature stress at 160°C, 170°C, 180°C, 190°C, and 200°C, separately. The relationship between environmental temperature and aging reaction rate was established based on the test data. Under the condition of 23°C and achieving a compression permanent deformation rate of 25%, the calculated storage life of the sealing gasket is about 44.94 a. Rubber sealing gaskets with equivalent aging levels of 6 a, 8 a, and 11 a were obtained based on accelerated degradation tests, and they were subjected to airtightness tests; the results indicate that the service life of the fluoro-rubber sealing gasket is greater than 11 a, providing a basis for the use and maintenance of the device.

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Solid State Phenomena (Volume 367)

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15-22

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December 2024

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© 2024 Trans Tech Publications Ltd. All Rights Reserved

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[1] Lian Yongqing, Li Chunlai, Li Zongji. Underwater rubber elastic launch torpedo interior ballistic simulation [J]. Journal of Naval Engineering University, 2016, 28 (06): 100-106.

Google Scholar

[2] Han Jianli, Chen Hongguang, Li Jianhua. Life prediction method for missile rubber seals [J]. Journal of Naval Aviation Engineering College, 2013, 28 (02): 172-176.

Google Scholar

[3] Wang Haowei, Teng Kenan. A review of reliability evaluation techniques based on accelerated degradation data [J]. Systems Engineering and Electronic Technology, 2017, 39 (12): 2877-2885.

Google Scholar

[4] Zhu Min, Shao Zhaoqun, Huang Huang et al. Review of failure mechanism and life assessment of polymer bonded explosives [J]. Science and Technology and Engineering, 2022, 22 (02): 455-462.

Google Scholar

[5] Luo Yunbao, Lu Ming, Wang Zhen. Research on Natural Aging Test of Nitrile Rubber [J]. Aging and Application of Synthetic Materials, 2019, 48 (04): 1-4+43.

Google Scholar

[6] Hu Haoyi, He Yusong, Lv Yadong. Research progress on photooxidation aging and anti-aging properties of natural rubber [J]. Synthetic Rubber Industry, 2022, 45 (05): 423-429.

Google Scholar

[7] WOO C S, PARK H S. Useful life time prediction of rubber component [J]. Engineering Failure Analysis, 2011, 18(7): 1645-1651.

DOI: 10.1016/j.engfailanal.2011.01.003

Google Scholar

[8] Brown R, Soulagnet G. Microhardness profiles on aged rubber compounds [J]. Polymer Testing, 2001, 20(3): 295-303.

DOI: 10.1016/s0142-9418(00)00035-0

Google Scholar

[9] Wang Ronghua, Li Hui, Li Qianqian, Sun Yan, Liu Yaping. Prediction of storage life of silicone rubber under accelerated aging in laboratory ovens [J]. Aging and Application of Synthetic Materials, 2013 (1): 1-5.

Google Scholar

[10] He Yajuan, Wang Heng, Zheng Yuanyuan, et al. Life prediction of O-ring seals in marine equipment based on accelerated aging tests [J]. Lubrication and Sealing, 2024, 49 (01): 143-148.

Google Scholar

[11] Zhu Min, Xu Zijian, Huang Gui. Estimation method for thermal aging of polymer materials under variable temperature conditions [J]. Aging and Application of Synthetic Materials, 2018, 47 (05): 11-14.

Google Scholar

[12] Xiao Ling, Yuan Haojie, Xin Jie et al. Nonlinear regression analysis method for predicting the service life of special rubber sound-absorbing materials in seawater [J]. Journal of Naval Engineering University, 2022, 34 (06): 96-100.

Google Scholar

[13] Yiran K, Xiangfei C, Zhouxian L, et al. Evolution of crosslinking structure in vulcanized natural rubber during thermal aging in the presence of a constant compressive stress [J]. Polymer Degradation and Stability, 2023, 217.

DOI: 10.1016/j.polymdegradstab.2023.110513

Google Scholar

[14] Zhang Linjun, Du Jiaojiao, Luan Jieyu, et al. The effect of thermal aging on the launch safety of RDX based aluminum containing compressed explosive charges [J]. Energy containing Materials, 2018, 26 (02): 156-160.

Google Scholar

[15] LI G Y, KOENIG J L.A review of rubber oxidation [J]. Rubber Chemistry And Technology, 2005, 78(2): 355-390.

DOI: 10.5254/1.3547888

Google Scholar

[16] R. K, M. A N, B. F, et al. Micromechanical based model for predicting aged rubber fracture properties [J]. International Journal of Fracture, 2023, 243(2): 125-142.

Google Scholar

[17] Ye Pengfeng, Gu Xiaohui, Di Yi. Evaluation of storage life of O-ring rubber seals for a certain missile based on performance parameter degradation [J]. Equipment Environmental Engineering, 2016, 13 (2): 7.

Google Scholar

[18] Zhai Zhongsheng, Zhong Xing, Zhang Yepeng, Hu Gang Study on the Service Life of O-ring Seals in Seawater [J]. Aging and Application of Synthetic Materials, 2011, 40 (6): 39-43.

Google Scholar