Flaw detection device
Description
The present invention provides a device for detecting welded portions of a reactor pressure vessel. Namely, the device of the present invention comprises (1) a casing to be disposed on the surface to be detected, (2) a probe driving means loaded to the casing, (3) a probe driven along the surface to be detected and (4) a pressure reduction means for keeping the hollow portion in the casing to an evacuated atmosphere. The casing comprises a flexible suction edge to be tightly in contact with the surface to be tested for maintaining the air tight state, (6) a guide wheel for moving the casing along the surface to be tested and (7) a handle for performing transferring operation. The flaw detection device thus constituted has following features. The working efficiency upon conducting detection is improved. The influence of the weight of the device on the detection is small. The device can be applied on the surface of a nonmagnetic material. The efficiency for the flaw detection can be improved. (I.S.)
Availability note (English)
Available from JAPIO. Also available from EPO.Additional details
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl. G01N29/26; G01N27/90; G01N29/10; G21C17/003
- IPC
- Int. Cl. G01N29/26; G01N27/90; G01N29/10; G21C17/003
- Patent number
- JP patent document 10-31008/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 29038124
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- INSPECTION; MATERIALS TESTING; PRESSURE VESSELS; PROBES; REMOTE CONTROL; ROBOTS; WELDED JOINTS; WELDING
- Descriptors DEC
- CONTAINERS; CONTROL; EQUIPMENT; FABRICATION; JOINING; JOINTS; TESTING
Optional Information
- Secondary number(s)
- JP patent application 8-183684