| 成莉,张泽坤,杨超,周元彪,孔令纯,卢京,薛忠旭.某型飞机用密封圈硬度不合格原因分析与生产工艺优化[J].橡胶科技,2025,23(6):0334-0339. |
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| 某型飞机用密封圈硬度不合格原因分析与生产工艺优化 |
| Analysis on Reasons for Unqualified Hardness of Sealing Ring Used for a Certain Type Aircraft and Its Manufacturing Process Optimization |
| 投稿时间：2025-02-18 修订日期：2025-02-18 |
| DOI：10.12137/j.issn.2095-5448.2025.06.0334 |
| 中文关键词: 航空修理 丁腈橡胶 密封圈 国际橡胶硬度 硫化体系 补强体系 硫化工艺 |
| 英文关键词: aviation maintenance NBR sealing ring IRHD vulcanization system reinforcement system vulcanization process |
| 基金项目:大连市青年科技之星计划项目(2024RQ47) |
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| 摘要点击次数: 841 |
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| 中文摘要: |
| 针对某型飞机起落架作动筒用丁腈橡胶密封圈国际橡胶硬度（IRHD）不合格的问题，研究外购与自制密封圈的硫化体系、补强体系以及调整硫化工艺对密封圈IRHD的影响。结果表明：外购与自制密封圈的IRHD存在明显差异，自制密封圈的IRHD较低，存在不达标问题；外购与自制密封圈的硫化剂和补强剂的成分及其含量均无明显差异；采取优化硫化工艺的方式提升了密封圈的IRHD，且耐油性能和拉伸性能满足技术指标要求。本研究可为橡胶密封件硬度不合格问题提供原因分析方法与解决
思路。 |
| 英文摘要: |
| In response to the problem of unqualified international rubber hardness（IRHD） of nitrile rubber sealing rings in the landing gear actuator of a certain type of aircraft，the effect of the vulcanization system and reinforcement system of purchased and self-made sealing rings，and the vulcanization process adjustment on the hardness of the sealing rings were studied.The results showed that there was a significant difference in IRHD between purchased and self-made sealing rings.The IRHD of self-made sealing rings was lower，and there was a problem of non-compliance.There was no significant difference in the composition and content of vulcanization agents and reinforcement agents between purchased and self-made sealing rings.By optimizing the vulcanization process，the IRHD of the sealing rings was improved，and the oil resistance and tensile performance met the technical specifications.This study could provide a cause analysis method and solution ideas for the problem of unqualified hardness of rubber seals. |
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