FIELD: metallurgy.
SUBSTANCE: method involves dimensional pipes ends heating, their hot landing on a horizontal forging machine, cooling and tempering. The pipes ends are landed in two junctions with a deformation degree at the first junction 36-42%, then the pipe end is chilled to a temperature of 900-920°C with a water-air mixture, and the second junction is made with a deformation of 10-12%.
EFFECT: providing increased mechanical properties and accuracy of pipe geometric dimensions.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PUMP-COMPRESSOR PIPE TREATMENT | 2008 |
|
RU2379362C1 |
| THERMOMECHANICAL PIPE TREATMENT METHOD | 2012 |
|
RU2500821C1 |
| PROCEDURE FOR FABRICATION OF PUMP-COMPRESSOR PIPE | 2009 |
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| MANUFACTURING METHOD OF PIPES FOR PROCESS NEEDS OF OIL WELLS | 2011 |
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| METHOD OF OIL WELL TUBING TREATMENT | 2016 |
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| METHOD FOR MANUFACTURE OF DIE BLOCKS FOR EXTRUSION OF PIPE ENDS | 2007 |
|
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| MANUFACTURING METHOD OF COLD-ROLLED PIPES FROM ALPHA- AND PSEUDO-ALPHA-ALLOYS BASED ON TITANIUM | 2013 |
|
RU2544333C1 |
| METHOD OF OILWELL TUBING PIPE-END UPSETTING | 2009 |
|
RU2414983C2 |
| WELDED STRAIGHT-SEAM LARGE-DIAMETER TUBES PRODUCING METHOD | 2004 |
|
RU2293620C2 |
