| 李健,吴云章,石金大,高蒙,李昌范,吴勇.某型直升机主减速器橡胶密封圈老化机理分析[J].装备环境工程,2020,17(6):95-100. LI Jian,WU Yun-zhang,SHI Jin-da,GAO Meng,LI Chang-fan,WU Yong.Aging Mechanism of Rubber Seal Ring in Helicopter Main Reducer[J].Equipment Environmental Engineering,2020,17(6):95-100. |
| 某型直升机主减速器橡胶密封圈老化机理分析 |
| Aging Mechanism of Rubber Seal Ring in Helicopter Main Reducer |
| 投稿时间：2020-03-08 修订日期：2020-04-23 |
| DOI：10.7643/issn.1672-9242.2020.06.015 |
| 中文关键词: 某型直升机 主减速器 橡胶密封圈 加速老化试验 老化机理 |
| 英文关键词:helicopter of certain type main reducer rubber seal ring accelerated aging test aging mechanism |
| 基金项目: |
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| Author | Institution |
| LI Jian | Army Aviation College, Beijing 101121, China |
| WU Yun-zhang | Army Aviation Research Institute, Beijing 101121, China |
| SHI Jin-da | Army Aviation Research Institute, Beijing 101121, China |
| GAO Meng | Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material, Beijing Institute of Aeronautical Material, Beijing 100095, China |
| LI Chang-fan | Army Aviation Research Institute, Beijing 101121, China |
| WU Yong | Army Aviation Research Institute, Beijing 101121, China |
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| 中文摘要: |
| 目的 揭示某型直升机主减速器橡胶密封圈的老化机理。方法 根据直升机主减速器橡胶密封圈正常使用和库存环境条件，采用加速老化试验方法模拟橡胶密封圈在库存条件下的老化历程，采用傅里叶红外光谱(FTIR)、X射线光电子能谱(XPS)、热重分析(TG/TGA)等方法对加速老化后的橡胶密封圈理化性能进行测试，并选取某型主减速器库存13年的橡胶密封圈及大修拆下的橡胶密封圈进行相关测试。结果 FX-4和FX-17密封胶圈在热空气老化试验过程中聚合物基团变化一致，F元素和O元素的电子结合能几乎没有变化。结论 老化前后橡胶中各键的化学结构没有发生明显变化，FX-17胶料的耐温性略好于FX-4胶料。 |
| 英文摘要: |
| This paper aims to reveal the aging mechanism of a certain type helicopter main reducer’s rubber seal ring. According to the environment conditions of normal use and stock of helicopter main reducer’s rubber seal ring, the accelerated aging test method was adopted to simulate the aging process of the rubber sealing ring. Fourier Transform Infrared Spectroscopy (FTIR), X-ray photoelectron spectrometric (XPS) and thermogravimetric analysis (TG/TGA) were adopted to test the physical and chemical properties of the rubber sealing ring after the accelerated aging test. A rubber seal ring with 13 years’ inventory of main reducer and the rubber seal ring removed from the overhaul were tested. The polymer groups of FX-4 and FX-17 rubber sealing ring changed uniformly during accelerated aging test. The electron binding energy of F and O was almost unchanged. The chemical structure of the bonds in rubber does not change obviously. The temperature resistance of FX-17 is slightly better than that of FX-4. |
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