Vacuum chamber for electron beam butt welding of pipes
US4368374A · kind A · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1981 |
| Grant date | Jan 11, 1983 |
| Priority date | — |
| Expiry date | Apr 21, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K15/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A welding chamber in which a vacuum is created for welding, using an electron beam, elongate pieces extending centrally of the chamber. The welding chamber is divided into a central sub-enclosure 41 for receiving the pieces 1, 2 to be welded and which is evacuated during welding, and a peripheral sub-enclosure 42 in which the welding means are located and which is permanently evacuated, the two sub-enclosures being separated by retractable sealing gaskets 12, 26, 27 which are retracted during welding to place the two sub-enclosures in communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.