FIELD: construction engineering; erection and operation of pipe lines; anti-corrosion protection of internal surfaces and welded joints of pipes. SUBSTANCE: proposed method includes introduction of expanding bush inside zone of pipe line to be strengthened; this bush is made in form of spirally twisted metal band with spirally twisted bandage impregnated with polymer binder and placed on its outer surface. Metal band is secured by retainer. When retainer is removed, metal band expands and presses bandage to inner surface. EFFECT: extended field of application. 5 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE FOR STRENGTHENING PIPELINE | 2001 |
|
RU2236632C2 |
| METHOD AND DEVICE FOR STRENGTHENING PIPELINE | 2001 |
|
RU2236631C2 |
| METHOD OF STRENGTHENING PIPELINE | 2001 |
|
RU2241172C2 |
| METHOD OF AND DEVICE FOR INTERNAL CORROSION PROTECTION OF PIPE WELD ZONE | 2002 |
|
RU2218511C2 |
| METHOD AND DEVICE FOR ANTICORROSIVE PROTECTION OF WELD FROM THE INSIDE | 2001 |
|
RU2236633C2 |
| METHOD OF AND DEVICE FOR INTERNAL CORROSION PROTECTION OF PIPE WELD ZONE | 2001 |
|
RU2218510C2 |
| METHOD AND DEVICE FOR INNER CORROSION PROTECTION OF WELDED JOINT ZONE OF PIPES | 2001 |
|
RU2190149C1 |
| METHOD AND DEVICE FOR CORROSION PROTECTION OF INTERNAL PIPE WELD JOINT | 2002 |
|
RU2235937C2 |
| METHOD OF AND DEVICE FOR INTERNAL CORROSION PROTECTION OF PIPE WELD ZONE | 2002 |
|
RU2218512C2 |
| METHOD OF INTERNAL ANTI-CORROSION PROTECTION OF PIPE WELDED JOINT AREA AND DEVICE FOR REALIZATION OF THIS METHOD | 2002 |
|
RU2218513C1 |
