目的 为有效杜绝关键核心部件在极端气候环境中储存、运输期间工件表面凝露和内包装进水,造成精加工表面锈蚀的问题。方法 针对大型、异形关键核心零部件,开发气相防锈+干燥热收缩密封+智能监测组合防护技术,对小件进行浸水、喷淋、凝雾试验,并在部分重要水电零部件上开展工程应用。结果 小件开封后,样件及防锈材料表面干燥、无凝露、无锈蚀、无积水;在线温湿度监测数据显示,关键零部件在长期储运过程中包装内部环境相对湿度全都稳定控制在60%以下,湿度波动幅度极小,高精度表面未发生锈蚀,同时,为固化工艺成果建立了一系列密封包装防护标准体系。结论 气相防锈干燥热收缩密封智能监测组合技术达到了研究目的,不但显著提升了关键零部件在极端环境中的长效防护水平和防护质量可靠性,而且包装外观整洁大气,实现了防护性能与外观美化的同步升级,推动了防护工艺由被动不稳定性向智能监测和自适应阶段的转变。
Abstract
The work aims to effectively prevent the formation of condensation on the surface of critical core components and water ingress into inner packages during storage and transportation in extreme climates, to avoid causing rust on finely machined surfaces. For large and irregular key core components, a combined protection technology of vapor phase rust prevention, drying, heat shrink sealing and intelligent monitoring was developed. Small test pieces were subject to immersion, spray and condensation fog tests, and engineering applications were carried out on some important hydropower components. After the small packages were opened, the surface of the sample and the anti-rust material was dry, without condensation, rust, or water accumulation. The online temperature and humidity monitoring data showed that the relative humidity inside the package of the key components remained stable and was controlled below 60%RH throughout the long-term storage and transportation process. The humidity fluctuation was extremely small, and no rust occurred on the high-precision surfaces. At the same time, a series of sealing packaging protection standards systems were established to solidify the technological achievements. The intelligent monitoring combined technology of volatile corrosion inhibitor, drying, heat shrinkage and sealing has achieved the research objective. It not only significantly enhances the long-term protection level and reliability of protection quality of key components in extreme environments, but also presents a neat and elegant package appearance, achieving a synchronous upgrade of protection performance and appearance beautification. This has driven the protection process to transform from passive instability to the stage of intelligent monitoring and self-adaptation.
关键词
关键核心部件 /
气相防锈 /
干燥热收缩密封 /
智能监测
Key words
key core components /
volatile corrosion inhibitor /
drying, heat shrinkage and sealing /
intelligent monitoring
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基金
中国长江电力股份有限公司科研项目（2123020001）
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