| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flaw inspection method which can perform flaw detection in continuous regions in each direction of a circumferential direction, a longitudinal direction and a radial direction of object material to be measured to which flaw detection is performed.SOLUTION: When performing an ultrasonic flaw inspection for an internal defect existing in object material to be measured by transmitting an ultrasonic wave from a probe to the object material to be measured and receiving a reflection wave, the ultrasonic flaw inspection is performed by processing the object material to be measured into conical material, rotating the conical material, moving the probe into the longitudinal direction and the radial direction of the conical material, and guiding the probe to the position along the outer shape surface of the conical material. |
