超声波在判定大型轴类锻件缺陷中的应用

摘要

By using of UT theory and UT pattern, the paper distinguishes the defects of heavy backup roll such as inner inclusions, tiny cracks and white flake, and analyses the forming mechanism of defects, so that obtain the accurate position and characteristics of various types of defects.%　　利用超声波检测原理，结合超声波检测波形图对大型轴类锻件常见缺陷如内部夹杂物、细小裂纹、白点等进行判定，对各种缺陷的形成机理进行分析，以实现对各类缺陷的准确定位与定性。