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针对无法满足标准要求进行超声波探伤的异径焊接接头,探究一种科学的方法,实现检测过程中缺陷的精确定位,并阐述缺陷定位的原理和工艺方法,对电站安装和在役检修中的此类焊接接头的超声波探伤具有一定的参考价值。
Aiming at the different-diameter welded joints which can not meet the standard requirements of ultrasonic flaw detection, a scientific method is explored to realize the precise positioning of the flaw during the inspection process, and the principle and process method of the flaw positioning are described. Ultrasonic testing of welded joints has some reference value.