Development of inspection systems for alloy 600 nozzles of PWR reactor vessel
Conference
·
OSTI ID:86120
- Mitsubishi Heavy Industries, Ltd., Kobe (Japan)
- Mitsubishi Heavy Industries, Ltd., Takasago (Japan)
PWR reactor vessels have alloy 600 nozzles at top and bottom heads. The former are head penetration nozzles for CRDM, and the latter are bottom mounted instrumentation nozzles. The authors have developed inspection systems of two types for each nozzle to confirm the soundness. ECT and UT Techniques are employed for both systems. These systems are controlled remotely and enable to reduce radiation exposure, inspection time and number of inspectors. Based on the functional tests using full scale mockups, the reliabilities and effectiveness of both systems were confirmed.
- OSTI ID:
- 86120
- Report Number(s):
- CONF-9505104--; ISBN 0-87170-548-6
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of ECT/UT inspection system for bottom mounted instrumentation nozzle of PWR reactor vessels
Inspecting the reactor vessel penetrations
Proceedings: 2000 EPRI Workshop on PWSCC of Alloy 600 in PWRs (PWRMRP-27)
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:72575
Inspecting the reactor vessel penetrations
Conference
·
Tue Aug 01 00:00:00 EDT 1995
·
OSTI ID:86170
Proceedings: 2000 EPRI Workshop on PWSCC of Alloy 600 in PWRs (PWRMRP-27)
Conference
·
Tue Oct 31 23:00:00 EST 2000
·
OSTI ID:835291