转子组件电子束焊缝熔深超声检测

Ultrasonic Inspection of Electron Beam Weld Penetration of Rotor Components

为解决某型号火箭发动机涡轮氧泵转子组件电子束焊缝熔深无法测量问题,开展超声C扫描检测技术研究。基于被检对象结构特点分析了入射面及入射角度、检测频率、水距、扫查范围等参数的选取原则。利用焊接模拟件进行检测试验并与金相剖切结果对比,验证了检测方案、工艺参数的合理性。结果表明,采用水浸超声C扫描技术可实现电子束焊缝熔深定量表征,测量误差不大于1mm,满足工程需求。

Research on ultrasonic C-scan technique is carried for EBW penetration measurement of a certain type of rocket engine turbo oxygen pump rotor components.The selection principles of the incident surface, incident angle, probe frequency, water distance, and scanning range are analyzed according to the characteristics of the inspected object.The rationality of the detection scheme and process parameters are verified by comparing the ultrasonic testing results with the metallographic results.It shows that ultrasonic C-scan technique can quantitatively characterize the weld penetration, and the measurement error is less than 1 mm.