Method of repairing a steam generator tube by means of lining
US4783890A · kind A · utility
6Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1986 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Mar 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4994
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method of repairing a steam generator tube by means of a liner, in which the mechanical deformation (19) of the liner (15), by expansion in its end part opposite the expanded end (16) inside the tube plate (11), is located at a limited height, and the parameters of the mechanical deformation (19) are calculated in accordance with the welding parameters subsequently applied. These parameters are determined in accordance with the parameters of the initial mechanical deformation (19) so as to obtain relief of the stresses more particularly in the critical zones (19a, 19b) of the mechanical deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.