直升机腐蚀原因分析及全寿命周期防护技术

通过直升机实际使用过程中暴露的腐蚀问题,分析了直升机全寿命期的腐蚀防护应对方法和思路。对陆地环境和海洋环境使用直升机的腐蚀情况进行了汇总,并对直升机典型腐蚀问题及改进措施进行了研究。在此基础上,进一步分析了导致直升机发生腐蚀的环境、设计、生产、制造、维护等原因,总结了直升机易腐蚀部位、腐蚀特点以及危害性。提出了采用“设计保证、生产实现、维护保持”的综合手段来提升直升机全寿命期的腐蚀防护能力。最后,对外场维护维修过程中需要重点关注的腐蚀控制手册、清洗、涂镀层修复、密封剂/缓蚀剂等问题进行了思考和分析,提出了需加快推进先进的防腐技术在直升机防腐中的应用,对有效开展直升机全寿命周期的腐蚀防护工作具有一定指导意义。

Corrosion Causes and Full Life Cycle Protection Technology of Helicopters

The work aims to analyze the methods for corrosion protection throughout the full life cycle of helicopters based on the corrosion problems exposed during their actual use. By summarizing the corrosion situation of helicopters used on land and at sea, typical corrosion problems and improvement measures of helicopters were studied. On this basis, the reasons of helicopter corrosion were further analyzed in terms of environment, design, production, manufacturing and maintenance. The easily corroded parts, corrosion characteristics and hazards of helicopters were summarized. A comprehensive approach of "design assurance, production implementation, and maintenance" was proposed to enhance the full life cycle corrosion protection capability of helicopters. And an analysis was conducted on the corrosion control manual, cleaning, coating repair, sealants/corrosion inhibitors and other issues that needed to be focused on during the maintenance and repair process in the field. It was proposed to accelerate the application of advanced anti-corrosion technology in helicopter anti-corrosion. It has certain guiding significance for effectively carrying out full life cycle corrosion protection throughout the full life cycle of helicopters.