FIELD: oil industry.
SUBSTANCE: method comprises resurfacing the pipe by electric arc welding by means of shifting electrodes in the horizontal plane of symmetry counter to the direction of pipe rotation.
EFFECT: reduced labor consumption and enhanced efficiency.
1cl, 2 dwg, 3 tbl
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|---|---|---|---|
| METHOD OF ARC-WELDING IN WIDE-LAYER SURFACING UNDER WEAR-RESISTANT COATING FLUX ONTO CYLINDRICAL PIPE | 2020 |
|
RU2739934C1 |
| DEVICE FOR REPAIRING DRILL PIPE | 2006 |
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| PROCEDURE FOR AUTOMATIC ELECTRIC-ARC HIDDEN PAD-WELD OF EXTERNAL OR INTERNAL SURFACES OF ROTARY BODIES | 2010 |
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| PROCESS LINE FOR RECOVERY OF DRILL PIPE | 2020 |
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RU2740193C1 |
| AUTOMATIC ELECTRIC ARC SURFACING PROCESS OF ARTICLES SUCH AS BODIES OF REVOLUTION | 2004 |
|
RU2268121C1 |
| METHOD OF AUTOMATIC ELECTRIC-ARC DEPOSITION ON ARTICLES UNDER FLUX LAYER | 1997 |
|
RU2117560C1 |
| METHOD FOR MAKING PART WITH SURFACED COATING AND PART MADE WITH USE OF SUCH METHOD | 2003 |
|
RU2255845C1 |
| PROCESS FOR WELDING ON IMPORTANT PARTS OF HARD-TO-WELD STEELS | 1999 |
|
RU2176581C2 |
| METHOD AND APPARATUS FOR ELECTRIC ARC TREATMENT | 0 |
|
SU1708555A1 |
| RAILWAY WHEEL RECOVERING METHOD AND APPARATUS | 1995 |
|
RU2106949C1 |
