FIELD: mechanical engineering.
SUBSTANCE: method comprises applying paste made of a soft metal on the threaded surfaces of a pipe and/or a coupling to be joined. The paste is made of a zinc-containing composition, and threaded surface is preliminary heated by 45-200°C throughout the area.
EFFECT: enhanced reliability.
4 cl, 4 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| THREADED CONNECTION OF OIL WELL TUBING (VARIANTS) | 2006 |
|
RU2324857C1 |
| NIPPLE-COUPLING THREADED CONNECTION WITH THERMODIFFUSION ZINC COATING | 2017 |
|
RU2676340C1 |
| METHOD OF THREADED CONNECTIONS SEALING INCREASE OF CIRCULAR AND PUMP-COMPRESSOR (LIFT) COLUMNS | 2017 |
|
RU2667919C1 |
| CONNECTION OF CORROSION-RESISTANT CASING OR LIFTING PIPES AND METHOD OF CONNECTION FABRICATION | 2008 |
|
RU2384789C1 |
| METHOD FOR RESTORING THREADED MEMBERS OF OIL PRODUCTION TUBES AND APPARATUS FOR PERFORMING THE SAME | 1992 |
|
RU2270744C2 |
| METHOD OF RECONDITIONING OF THREAD ELEMENTS OF OIL PIPES AND DEVICE FOR ITS REALIZATION | 1992 |
|
RU2092291C1 |
| METHOD FOR SEALING TAPER-THREAD JOINTS OF PIPES | 1999 |
|
RU2163654C1 |
| ANTICORROSIVE COATING AND METHOD OF METAL STRUCTURES TREATMENT | 1998 |
|
RU2148603C1 |
| MODIFIED ZINC POWDER FOR THERMO-DIFFUSION ZINCING, PROCEDURE FOR APPLICATION OF COATING AND CLUTCH WITH THERMO-DIFFUSION ZINC COATING | 2008 |
|
RU2383413C1 |
| PIPE THREADED JOINT AND FORMING LUBRICATING COATING COMPOSITION FOR USE THEREIN | 2013 |
|
RU2604526C2 |
