| 摘要 |
PURPOSE: To inspect the weld line of a narrow part difficult to adapt in a conventional ultrasonic flaw detector by miniaturizing an ultrasonic flaw detector. CONSTITUTION: In an ultrasonic flaw detector constituted of a track rail 11 arranged along a weld line, a main body drive part 12 running on the track, a flaw detection arm 13 attached to the main body drive part 12, a slide drive part extending and contracting the flaw detection arm 13 and a truck 16 having a probe 18 at the tip of the flaw detection arm 13, the flaw detection arm is formed into a multistage slide rail structure. |
