超声表面波检测在热轧板带轧辊上的应用

Application of Ultrasonic Surface Wave Testing to Hot Strip Roll

为对轧辊表面和近表面的缺陷进行判断和定性分析,通过对轧辊表面缺陷的各种无损检测研究,掌握了一套轧辊表面缺陷的超声表面波检测技术,该技术应用到实际操作中,可对缺陷快速准确定位,有效解决了现场新材质高速钢轧辊表面缺陷和支撑辊表面疲劳裂纹等各种材质的表面缺陷检测难题,本文介绍了轧辊表面波超声探伤检测技术的工作原理和影响因素,在同行业的现场实际操作中起到了极大的推广作用。

To judge and analyze qualitatively the defect of surface and subsurface,through the deep study of NDT to the surface defect of roll,we get the measurement technology of surface acoustic wave on surface defect.in practice,it can locate the defect rapidly and accurately.It effectively solve the difficult Problem of surface defect on the HSS roll which in formed by new Material and surface fatigue cracks on backup roll.the article introduces some influent factors and working principle of ultrasonic testing technology on lacuna of roll surface,It plays a very important promotional role in practice application.