Automatic valve seat build-up welding apparatus
US4531039A · kind A · utility
7Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1982 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Dec 21, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/048
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An automatic valve seat build-up welding apparatus for a Y-type main steam isolation globe valve used in an atomic power station is disclosed which is characterized in that the valve seat can be build-up welded on the spot by the welding torch introduced into the valve box with the welding operation being carried out remotely from the spot and viewed by an image sensor positioned near the welding torch so that the exposure of an operator to a radioactive environment is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.