崔腾飞,高蒙,胡建清,刘冲,宋健,刘明.海洋环境对直升机基础产品腐蚀行为影响研究[J].装备环境工程,2023,20(5):19-25. CUI Teng-fei,GAO Meng,HU Jian-qing,LIU Chong,SONG Jian,LIU Ming.Effect of Marine Environment on Corrosion Behavior of Helicopter Foundation Products[J].Equipment Environmental Engineering,2023,20(5):19-25.
海洋环境对直升机基础产品腐蚀行为影响研究
Effect of Marine Environment on Corrosion Behavior of Helicopter Foundation Products
  
DOI:10.7643/issn.1672-9242.2023.05.004
中文关键词:  直升机  基础产品  螺栓  卡箍  海洋环境  腐蚀中图分类号:TG172.3 文献标识码:A 文章编号:1672-9242(2023)05-0019-07
英文关键词:helicopter  basic products  bolt, clamp  marine environment  corrosion
基金项目:
作者单位
崔腾飞 中国直升机设计研究所 标准材料部,江西 景德镇 333000 
高蒙 北京航空材料研究院,航空材料先进腐蚀与防护航空科技重点实验室,北京 100095 
胡建清 中国直升机设计研究所 标准材料部,江西 景德镇 333000 
刘冲 中国直升机设计研究所 标准材料部,江西 景德镇 333000 
宋健 中国直升机设计研究所 标准材料部,江西 景德镇 333000 
刘明 北京航空材料研究院,航空材料先进腐蚀与防护航空科技重点实验室,北京 100095 
AuthorInstitution
CUI Teng-fei Standard and Material Department, China Helicopter Research and Development Institute, Jiangxi Jingdezhen 333000, China 
GAO Meng Key Laboratory of Advanced Corrosion and Protection Aviation Materials, Beijing Institute of Aeronautical Material, Beijing 100095, China 
HU Jian-qing Standard and Material Department, China Helicopter Research and Development Institute, Jiangxi Jingdezhen 333000, China 
LIU Chong Standard and Material Department, China Helicopter Research and Development Institute, Jiangxi Jingdezhen 333000, China 
SONG Jian Key Laboratory of Advanced Corrosion and Protection Aviation Materials, Beijing Institute of Aeronautical Material, Beijing 100095, China 
LIU Ming Key Laboratory of Advanced Corrosion and Protection Aviation Materials, Beijing Institute of Aeronautical Material, Beijing 100095, China 
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中文摘要:
      目的 研究螺栓、卡箍等直升机基础产品在海洋大气环境下腐蚀和力学性能随时间的变化规律,采用结构模拟连接件,验证直升机防护体系对基础产品的防护效果。方法 通过将螺栓、卡箍和连接件在外场暴露不同时间,在此期间定期对试验件表面状态和力学性能进行测试,分析海洋环境对直升机基础差的影响和机上防护方法的可靠性。结果 经过2 a腐蚀后,螺栓表面发生了明显的腐蚀,但是腐蚀深度不大,抗拉强度维持在18.3 MPa,剪切强度从27.99 MPa下降到26.52 MPa。卡箍发生了腐蚀,橡胶材料老化严重,推出力降低80%,基本丧失锁紧性能。有涂层保护的典型连接件,表面厚度为66 mm,色差为0.3,光泽度变化1%,各项参数与未暴露时相比变化不大。结论 在海洋大气环境下,螺栓、卡箍等在未采取防护措施的情况下不建议使用,机上采用的防护措施有效,可对基体起到很好的保护作用。
英文摘要:
      The work aims to study the corrosion and mechanical properties of helicopter foundation products such as bolts and clamps under marine and atmospheric environment and verify the protective effect of the helicopter protection system on the basic products through structural simulation connectors. By test of the bolts, clamps and connectors in the outfield for different exposing time, the surface state and mechanical properties of the test pieces were regularly tested during this period to analyze the effect of the marine environment on the poor foundation of the helicopter and the reliability of the on-board protection methods. The results showed that:after 2 years of corrosion, obvious corrosion occurred to the bolt surface, but the corrosion depth was not large, the tensile strength remained at 18.3 MPa, and the shear strength decreased from 27.99 MPa to 26.52 MPa. The clamp was corroded, and the rubber material was seriously aged. The pushing force of clamp was reduced by 80%, and the locking performance was basically lost. For the typical connector with coating protection, the surface thickness was 66 mm, the color difference was 0.3, and the gloss changed by 1%. The parameters had little change compared with the unexposed ones. Therefore, in the marine atmospheric environment, bolts and clamps are not recommended to be used when protective measures are taken. The protective measures adopted on the helicopter are effective and can play a good role in protecting the substrate.
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