Process and installation for welding grids for nuclear fuel assemblies
US4595815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1983 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Nov 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K37/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
For welding a grid formed by sets of plates disposed orthogonally and whose endmost parts are secured to a surround, it is placed in a shaping and mechanically holding frame allowing access to the point to be welded. The frame containing the grid is then placed on a revolving device belonging to a roundabout, at a first welding position and welding is carried out therein on at least one face of the grid by means of a welding member movable in two perpendicular directions for bringing it at right angles to each of the welding points on the face. The frame is then brought to a second welding position in which the plates are welded to the surround by means of a second welding member movable in only one direction, after rotation through 90.degree. of the frame by means of the revolving device; and the operations are repeated as necessary until the whole of the welds have been executed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.