Method of repairing leaks in steam generator tubes
US4513903A · kind A · utility
8Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1982 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Nov 18, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49352
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of sealing leaking steam generator tubes without substantially restricting the fluid flow area by explosively welding a cylindrical sleeve over the degraded area of the tube. The sleeve has a wall thickness of approximately 0.010 to 0.040 inches and a length of about 1.5 to 4.0 inches, the weld occurs over the entire length of the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.