| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piping inspection method capable of easily obtaining concrete information about damage to piping, improving reliability of inspection result and accurately knowing a damage state, after welding or in accordance with conditions of utilization, and provide a piping lifetime determination method. <P>SOLUTION: A piping inspection method in the invention is a method for inspecting damage on an interface of a different-material welded joint part of piping, and includes: a surface observation step for collecting information about damage on a surface of the piping and acquiring information about generation state of the damage; an internal observation step for using a probe, which comprises a transmission part for transmitting an ultrasonic wave and a receiving part capable of receiving the ultrasonic wave, to transmit the ultrasonic wave to the interface of the different-material welded joint part from the transmission part, and for acquiring information about generation state of internal damage of the piping by receiving a reflected wave at the receiving part; and a diagnosis step for diagnosing a damage level of the piping based on the information about the generation state of the damage acquired in the surface observation step and the internal observation step. <P>COPYRIGHT: (C)2012,JPO&INPIT |
