Apparatus and method for welding steel boiler tubes
US9611956B1 · kind B1 · utility
0Cited by
11References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jul 17, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus and method for welding steel boiler tubes in a space restricted area using a pulsed-arc welding process. The process includes the use of a consumable insert ring having a T-shaped profile and flux material to provide deep weld penetration by a GTAW welding machine. Notches in the consumable weld ring allow for visual inspection of tube fit prior to weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.