FIELD: tube production, possibly of large-diameter helical-seam tubes for main gas and oil conduits and for industrial enterprises.
SUBSTANCE: line includes mobile butt-welding plant for welding end portions of coils by cross seam; shaping-welding mill; ultrasonic flaw detector for helical seams; plant for welding outer cross seams in tube. In front of butt-welding plant apparatus for heating strip along its whole width is arranged. In front of plant for welding outer cross seams there is apparatus for heating tube portions including inner cross seams plus 100-300 mm at both sides.
EFFECT: improved operational reliability of helical-seam tubes due to their improved ductile properties, enhanced shape of cross seams, lowered trend to cracking.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TECHNOLOGICAL LINE FOR MANUFACTURING OF SPIRAL SEAM PIPES OF COIL STOCK | 2006 |
|
RU2334577C2 |
| LINE FOR MANUFACTURING HELICAL-SEAM TUBES FROM SEPARATE SHEETS | 2006 |
|
RU2308338C1 |
| LINE FOR MANUFACTURING HELICAL-SEAM TUBES OF SEPARATE SHEETS | 2006 |
|
RU2320439C2 |
| LINE FOR MANUFACTURING HELICAL-SEAM TUBES OF ROLLED STRIP COILS | 2006 |
|
RU2320438C2 |
| LINE FOR MANUFACTURING HELICAL-SEAM TUBES FROM SEPARATE SHEETS | 2006 |
|
RU2308339C1 |
| METHOD OF MAKING HELICAL WELDED TUBES | 2011 |
|
RU2476283C1 |
| METHOD FOR MANUFACTURING LONGITUDINALLY ELECTRIC-WELDED PIPE OF LARGE DIAMETER | 2022 |
|
RU2791999C1 |
| LINE FOR PRODUCING HELICAL SEAM CORRUGATED TUBES | 0 |
|
SU1715535A1 |
| MILL FOR MANUFACTURING DOUBLE-LAYER SPIRAL-SEAMED PIPES | 0 |
|
SU276895A1 |
| METHOD OF AUTOMATIC-ARC WELDING BY NONCONSUMABLE ELECTRODE OF STRIPS AND TUBULAR BILLETS IN CONTINUOUS AGGREGATES | 2008 |
|
RU2378090C1 |
