Title:
溶接部の超音波検査装置
Document Type and Number:
Japanese Patent JP7453928
Kind Code:
B2
Abstract:
To provide an ultrasonic inspection device for a welded zone capable of improving measurement accuracy of the length of an unwelded portion of the welded zone.SOLUTION: The present invention includes an ultrasonic probe 200 that performs ultrasonic flaw detection on an object to be inspected having a welded metal zone 3 in which a structural material A1 and a structural material B2 are joined by welding. A flaw detection aid 300 is attached to the surface of the welded metal zone 3. The flaw detection aid 300 includes a reflecting member 303 that reflects ultrasonic waves from the ultrasonic probe 200, and a coupling material 301 is provided between the reflecting member 303 and the welded metal zone 3. In addition, the flaw detection aid 300 includes a delay member 302 that propagates ultrasonic waves from the ultrasonic probe 200, and the delay member 302 is provided between the coupling material 301 and the reflecting member 303.SELECTED DRAWING: Figure 12
Inventors:
Hiroyuki Nakano
Application Number:
JP2021022467A
Publication Date:
March 21, 2024
Filing Date:
February 16, 2021
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01N29/22; G01N29/04
Domestic Patent References:
| JP2019045317A | ||||
| JP4366761A | ||||
| JP8201356A | ||||
| JP4040360A | ||||
| JP61082159A | ||||
| JP57073669A | ||||
| JP51001993B1 | ||||
| JP60056267U |
Foreign References:
| US20040037742 |
Attorney, Agent or Firm:
Polaire Patent Attorneys Corporation