对发生渗漏的某厂轧机主轴安全接手进行检测分析,以超声波检测专用工艺跟踪裂纹缺陷发展状况,监控安全接手特殊结构焊接质量,以准确可靠的检测数据指导焊缝修复,并配合裂纹挖补修复过程检测,直至3个月后的正常检修期更换该部件。通过本案例可以证实采用超声波检测技术跟踪安全接手裂纹缺陷是一种适用、准确、高效的方法。 To detect the leakage of a plant mill spindle safety take over the detection and analysis of the ultrasonic testing for the development of crack defect tracking technology to monitor the safety of special structures to take over the welding quality to accurately and reliably detect the data to guide the weld repair and repair with crack digging Process testing, replacement parts until normal maintenance after 3 months. Through this case can confirm the use of ultrasonic detection technology to track the safe takeover of crack defects is a suitable, accurate and efficient method.