FIELD: metallurgy.
SUBSTANCE: group of inventions relates to metal treatment under pressure, in particular, to induction bending of a pressure-resistant pipe. Pipe is compressed in the press unit before entering the annular inductor to heat it vertically, the cross-section in the form of the lying letter O is forcibly provided to the pipe. In addition, during pipe bending by means of lateral displacement of the inductor, a temperature profile with lower temperature on the outer side of the arc and with higher temperature on the inner side of the arc is installed.
EFFECT: geometric shape of the pipe is improved and the bent pipe strength is increased.
11 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF INDUCTION BENDING OF PRESSURE-RESISTANT PIPE WITH VERY THICK WALL AND LARGE DIAMETRE | 2016 |
|
RU2636427C1 |
| DEVICE AND METHOD OF TUBE BENDING | 2008 |
|
RU2457057C2 |
| PIPE BENDING MACHINE | 2019 |
|
RU2772761C2 |
| METHOD OF PIPES AND MACHINES BENDING FOR IMPLEMENTATION OF METHOD | 2018 |
|
RU2713899C2 |
| THIN-WALL PIPE BENDING METHOD AND RELATED DEVICE | 2007 |
|
RU2354478C1 |
| PIPE MANIPULATOR | 2011 |
|
RU2499647C2 |
| BENDING MACHINE FOR LH AND RH BENDING | 2011 |
|
RU2560889C2 |
| METHOD OF PRODUCING BENT TUBES | 0 |
|
SU1574317A1 |
| PIPE BENDING METHOD AND MACHINE FOR METHOD PERFORMING | 2015 |
|
RU2614975C1 |
| PROCEDURE FOR SHAPING BOX AND TUBE-LIKE ITEMS WITH LUGS AND PUNCH FOR IMPLEMENTATION OF THIS PROCEDURE | 2007 |
|
RU2397832C2 |
