在水浸法超声波探伤中,无论采用平探头、线聚焦探头或点聚焦探头,探头与工件相对位置很重要。就使用纵波探伤的情形来说,钢中的折射角约为入射角的4倍,故在垂直探伤时,探头在纵向或横向的微小倾斜,将使声束在工件传播中歪斜更大,既影响探伤灵敏度,缺陷定位、定量也不准。在水浸探伤装置 In immersion ultrasonic flaw detection, whether the use of flat probe, line focus probe or point-focus probe, probe and the relative position of the workpiece is very important. In the case of longitudinal wave flaw detection, the angle of refraction in steel is about 4 times the angle of incidence, so a slight tilt of the probe in the longitudinal or transverse direction during vertical flaw detection will skew the beam more as it propagates in the workpiece, both Impact detection sensitivity, defect location, quantitative is not allowed. In flooding test equipment