hot induction pipe expanding machine for expansive small pipes
The main components of the tube expanding machine include: stand,
main oil cylinder support plate, movable push plate,front support
plate, automatic feeding mechanism, discharging roller table, mold
support, intermediate frequency coil adjusting frame, (including
intermediate frequency heating coil) intermediate frequency power
supply, electrical control system.
Operating process of the expanding machine: the rinsed pipe is sent
to the rotary idler device on the center line of the expanding
machine.Using this rotating idler device, combined with the camera
system, the tube weld is precisely rotated to the 12 o 'clock
position to ensure that the weld can enter the groove of the upper
sector of the tool during subsequent diameter enlargement.The
lifting cone roller way lifts the pipe to the center line of the
reaming machine and the position is controlled by the displacement
sensor in the lifting hydraulic cylinder.The clamping trolley moves
forward and is controlled by a metal detector to detect the end of
the tube and to secure it. At the same time, a signal is sent to
start the feeding roller of the clamping trolley. The position is
controlled by an encoder.The pipe length is combined with the
reaming head to automatically calculate the optimal reaming
steps.The clamp jaws can be rotated to avoid damaging the tube
wall.During the advance, the height of the clamp can be adjusted to
compensate for the pipe straightening deviation and optimize the
straightening effect of the reamer.
| NO. | Model | Finished pipe
ranges(mm) | Thrust(t) | Max working feed
speed (mm/min) | Return speed
(mm/min) | M.F power(kw) | Max working
thrust(t) | Mother pipe
length(mm) | Max wall thickness of finished pipe(mm) |
| 1 | HY-219 | 89-219 | 84 | 2200 | 6500 | 200-250 | 72 | ≤24000 | 30 |
| 2 | HY-325 | 168-325 | 106 | 1700 | 5000 | 250-300 | 91 | ≤24000 | 40 |
| 3 | HY-426 | 219-426 | 160 | 1600 | 4500 | 350-400 | 137 | ≤24000 | 50 |
| 4 | HY-530 | 273-530 | 206 | 1250 | 3500 | 400-450 | 177 | ≤24000 | 60 |
| 5 | HY-630 | 325-630 | 260 | 1200 | 3200 | 450-500 | 220 | ≤24000 | 80 |
| 6 | HY-720 | 355-720 | 300 | 1200 | 2300 | 500-600 | 257 | ≤24000 | 100 |
| 7 | HY-820 | 426-820 | 300 | 1200 | 2200 | 600-800 | 257 | ≤24000 | 100 |
| 8 | HY-914 | 457-914 | 330 | 1000 | 1800 | 600-800 | 282 | ≤24000 | 100 |
| 9 | HY-1020 | 530-1020 | 510 | 900 | 1600 | 800-1000 | 437 | ≤24000 | 120 |
| 10 | HY-1220 | 630-1220 | 670 | 800 | 1600 | 800-1000 | 574 | ≤24000 | 120 |
| 11 | HY-1420 | 720-1420 | 850 | 740 | 1400 | 1000-1200 | 728 | ≤24000 | 150 |
By the core technology of the patent-Steel Tube OD Hot Expansion,
the requirements of different kinds of pipe diameters are
satisfied,especially the large diameter pipes and kinds of
non-standard steel pipes with different diameters , and some small
batch steel pipe with various specifications. It is the main
production technology to produce large outside diameter steel pipe,
high pressure steam piping of power station and nuclear power plant
. The expanded pipes has been widely used in the fields of military
industry, aerospace industry and marine industry equipment
manufacturing, which has made a great contribution to national
defense and energy construction.
The equipment is used in the diameter expanding production of
seamless pipe, straight welded pipe, spiral welded pipe etc.The
suitable material for expansion includes: plain carbon steel, kinds
of alloy steel and stainless steel.
