FIELD: machine building.
SUBSTANCE: method involves connection of two and more cylindrical metal pipes, pipe sections, pipe strings by welded ring joint using arc welding along the whole pipe perimeter. Each welded joint pass is performed by parallel overlapping of two string beads. The second string bead covers the first one completely and is an annealing pass.
EFFECT: invention allows for the increased load-carrying ability of pipelines made from butt-welded pipes, pipe sections, pipe strings.
1 tbl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CONTROL OVER WELDING OF PIPELINES FROM HIGH-STRENGTH PIPES WITH CONTROLLED HEAT INPUT | 2014 |
|
RU2563793C1 |
| METHOD OF ARC WELDING OF PIPELINES | 2015 |
|
RU2643120C2 |
| METHOD OF PILE ELONGATION | 2012 |
|
RU2499655C1 |
| METHOD OF ARC WELDING OF WELDOLET FROM AUSTENITE STEELS TO PIPELINE FROM LOW-CARBON AND LOW-ALLOY STEELS | 2016 |
|
RU2643098C2 |
| METHOD OF ARC WELDING OF TRIPLE CONNECTIONS (WELDOLETS) OF THE MAIN PIPELINES | 2015 |
|
RU2643118C2 |
| METHOD FOR REPAIR OF HULL STRUCTURES | 2017 |
|
RU2678357C1 |
| METHOD OF WELDING REPAIR CONSTRUCTION TO PIPELINE | 2018 |
|
RU2674826C1 |
| METHOD FOR MANUFACTURING DESIGN ASSEMBLY OF TANK BOTTOM WITH ITS WALL | 2021 |
|
RU2772702C1 |
| CASTINGS REPAIRE METHOD, USING THE ARC WELDING | 2015 |
|
RU2630080C2 |
| RESERVOIR WALL REPAIR METHOD | 2017 |
|
RU2686407C1 |
