膨胀节是现代工业柔性管道系统中的重要部件,它对整个管道系统的安全、正常运行至关重要。本文就膨胀节的定义、分类、功能以及金属波纹膨胀节生产、采购、安装、使用、运行管理、可靠性、失效分析、应急处置等方面进行了浅要的阐述。 Expansion joint is an important part of modern industrial flexible pipe system, which is crucial to the safety and normal operation of the whole pipe system. In this paper, the definition, classification and function of expansion joints, as well as the production, procurement, installation, use, operation and management, reliability, failure analysis and emergency response of expansion joints of corrugated metal are briefly described.