起重机种类繁多,结构各异,检测方法各有特点。起重机焊接结构中T型焊缝尤为重要,T型焊缝所连接的结构件多受剪切应力的作用,当承受载荷大或长时间承受载荷,容易质量失控,引发事故,对人们的生活乃至生命,及财产安全造成一定的影响。因此对于起重机T型焊缝的无损检测,具有非常重要的意义。本文介绍了起重机设备中的T型焊缝的超声检测方法,并对影响检测结果灵敏度的因素进行了分析。 Crane variety, different structures, detection methods have their own characteristics. T-weld is particularly important in welding structure of crane. The structure connected by T-type weld is mostly subject to shear stress. When bearing large load or long time load, it is easy to lose control of quality and cause accidents. Life, and property safety have a certain impact. Therefore, T-type non-destructive testing of the crane has a very important significance. This paper introduces the ultrasonic testing method of T-type weld in crane equipment, and analyzes the factors that affect the sensitivity of test results.