FIELD: manufacture of tubes from plastic materials with reinforcement.
SUBSTANCE: proposed tube has polymer and composite fibrous material layers with outer layer made in form of U-shaped or E-shaped helical profile with the wall outside; this layer is fastened with composite fibrous material layer and adjacent turns.
EFFECT: enhanced reliability.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURE OF PIPE | 2004 |
|
RU2262026C1 |
| METHOD OF MANUFACTURE OF THE PIPE | 2004 |
|
RU2284266C2 |
| PIPE | 2003 |
|
RU2244866C2 |
| PIPE | 2004 |
|
RU2258858C1 |
| PIPELINE | 2003 |
|
RU2241891C1 |
| METHOD OF MANUFACTURING HOLLOW ARTICLE | 2004 |
|
RU2269054C1 |
| METHOD OF MAKING PIPELINE | 2004 |
|
RU2272214C1 |
| PIPE | 2003 |
|
RU2240463C1 |
| METHOD OF PRODUCING PIPE | 2004 |
|
RU2279979C2 |
| COMPOSITE SLAB FOR RAILROAD BRIDGE BALLASTLESS BRIDGE DECK SYSTEM | 2022 |
|
RU2793232C1 |
