SU468668A1 - Method of bending pipes - Google Patents
Method of bending pipesInfo
- Publication number
- SU468668A1 SU468668A1 SU750958A SU750958A SU468668A1 SU 468668 A1 SU468668 A1 SU 468668A1 SU 750958 A SU750958 A SU 750958A SU 750958 A SU750958 A SU 750958A SU 468668 A1 SU468668 A1 SU 468668A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pipe
- bending
- pipes
- bending pipes
- bent
- Prior art date
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Description
1one
Изобретение относитс к способам гибки труб,с радиусами гиба меньше 0,8-1,2 диаметра трубы.The invention relates to pipe bending methods, with bending radii less than 0.8-1.2 pipe diameters.
Известен способ гибки труб с радиусом гиба меньше 0,8-1,2 диаметра трубы, при котором одновременно с гибкой производ т осадку стенок и нагрев ТВЧ.There is a known method of bending pipes with a bend radius less than 0.8-1.2 of the pipe diameter, at which, simultaneously with the flexible pipe, wall sludge and heating of high frequency current are produced.
Однако он не обеспечивает равностенности изгибаемого участка трубы.However, it does not ensure that the pipe section to be bent is equal.
Предложенный способ гибки исключает этот недостаток за счет того, что стенки осаждают с опережением изгиба и неодинаковой степенью деформации отдельных участков.The proposed method of flexible eliminates this disadvantage due to the fact that the walls are deposited ahead of the bend and unequal degree of deformation of individual sections.
Деформирование трубы происходит при одновременной осадке и изгибе. Величину осадкп выбирают так, чтобы нейтральный слой проходил через крайний наружный слой поперечного сечени трубы в зоне изгиба. Трубы деформируют в гор чем состо нии, нагрева их узкий кольцевой участок до 850-900°С.The deformation of the pipe occurs with simultaneous settling and bending. The magnitude of the sediment is chosen so that the neutral layer passes through the outermost layer of the cross section of the pipe in the bend zone. The pipes are deformed in the hot state, heating their narrow annular region to 850-900 ° C.
Процесс гибки осуществл ют следующим образом.The bending process is carried out as follows.
Трубнук) заготовку ввод т в нагревательное устройство, например индуктор, передний конец трубы закрепл ют, включают нагревательное устройство и осаждают трубы, ввод внутрь трубы оправку, с различной степенью деформации отдельных участков. После достижени заданной величины осадки трубу изгибают на требуемый угол и радиус, причем по мере изгиба изогнутые участки трубы последовательно охватывают по наружной полуокружности ее сечени зажимными элементами. По окончании изгиба трубы зажимы освобождают и трубу снимают с оправки.Tube) the billet is inserted into a heating device, such as an inductor, the front end of the pipe is fixed, the heating device is turned on and the pipes are deposited, and a mandrel is introduced into the pipe, with different degrees of deformation of individual sections. After reaching a predetermined amount of precipitation, the pipe is bent to the desired angle and radius, and as the curve is bent, the curved sections of the pipe successively cover the clamping elements along the outer semicircle. At the end of the bending of the pipe, the clips are released and the pipe is removed from the mandrel.
Предмет изобретени Subject invention
Способ гибки труб с радиусами гнба, меньшими 0,8-1,2 диаметра трубы, с одновременной осадкой стенки и нагревом ТВЧ, отличающийс тем, что, с целью обеспечени равностенности изгибаемого участка трубы, осадку стенки осуществл ют с опережением изгиба н неодинаковой степенью деформации отдельных участков.The method of bending pipes with gnb radii smaller than 0.8-1.2 of the pipe diameter with simultaneous wall slumping and high-frequency heating, characterized in that, in order to ensure the flatness of the pipe section to be bent, the wall slump is carried out ahead of the bend and unequal degree of deformation individual plots.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU750958A SU468668A1 (en) | 1961-11-11 | 1961-11-11 | Method of bending pipes |
SU61750958D SU468669A1 (en) | 1961-11-11 | 1961-11-11 | Pipe bending machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU750958A SU468668A1 (en) | 1961-11-11 | 1961-11-11 | Method of bending pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU468668A1 true SU468668A1 (en) | 1975-04-30 |
Family
ID=20437283
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU61750958D SU468669A1 (en) | 1961-11-11 | 1961-11-11 | Pipe bending machine |
SU750958A SU468668A1 (en) | 1961-11-11 | 1961-11-11 | Method of bending pipes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU61750958D SU468669A1 (en) | 1961-11-11 | 1961-11-11 | Pipe bending machine |
Country Status (1)
Country | Link |
---|---|
SU (2) | SU468669A1 (en) |
-
1961
- 1961-11-11 SU SU61750958D patent/SU468669A1/en active
- 1961-11-11 SU SU750958A patent/SU468668A1/en active
Also Published As
Publication number | Publication date |
---|---|
SU468669A1 (en) | 1975-04-30 |
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