钢腐蚀脉冲涡流检测系统的研制与应用  

Research and Application of Pulsed Eddy Current Testing Instrument for Steel Corrosions

作　　者：武新军[1] 黄琛[1] 丁旭[1] 林树青[2] 沈功田[2] 

机构地区：[1]华中科技大学 机械科学与工程学院,武汉430074 [2]中国特种设备检测研究院,北京100013

出　　处：《无损检测》2010年第2期127-130,共4页Nondestructive Testing

基　　金：国家科技支撑计划资助项目(2006BAK02802)

摘　　要：为解决带包覆层钢腐蚀检测的技术难题,根据脉冲涡流检测原理,研制出一套脉冲涡流钢腐蚀检测仪。详细论述了传感器、主机和检测软件等检测系统的组成。实验室和现场试验表明,该系统能够穿透铝和不锈钢等常见管道保护层材料,检测出120 mm包覆层厚度下10%的钢腐蚀变化。钢腐蚀脉冲涡流检测技术为在线检测提供了新的手段。To solve the problem of testing the corrosion of the steel component with coatings, a pulse eddy current testing system is developed. The system composition parts, which include the sensors, the host and the software, are described in detail. The laboratory experiment and field application indicate that the system is able to detect the 10% wall thickness variation due to the corrosion when the coating thickness is 120 mm. The experimental result also shows the system can detect the steel corrosion with Aluminum and stainless steel sheet. Therefore, an online testing method is proposed.

关 键 词：钢腐蚀 脉冲涡流检测 包覆层 

分 类 号：TG115.28[金属学及工艺—物理冶金]