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PLC control automatic induction heating pipe expanding machine
The structure and principle of tube expanding machine
The tube expanding machine is a parallel equal-speed hydraulic pusher with double cylinders. Pipe-expanding machine feeding by the feeding winding machine, the stock moving wire rope, push the pipe through the wire rope wheel, reciprocating operation, to expand the primary pipe into the equipment.
The intermediate frequency power supply of the tube expanding machine is installed at the front end of the equipment, and the intermediate frequency induction coil is placed on the coil adjusting frame, and the coil can be adjusted up and down, forward and backward. After the core reamer dies and the core reamer, the pump and the intermediate frequency power supply are opened and the intermediate frequency power is adjusted, the core reamer dies and the pipe can be heated and the pipe can be gradually pushed forward. The pipe will rise to a certain temperature with the heating temperature, resulting in plastic deformation. The pipe can be expanded by pushing forward along the outside diameter of the mandrel.
| 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 |
Special equipment for steel tube hot hole enlargement, mainly for domestic large diameter steel pipe production cannot meet the demand of market and all kinds of steel pipe specification is not complete, meet the needs of small batch more varieties of steel pipe production, can satisfy the different material steel pipe hole enlargement and various non-standard steel tube expanding needs, is currently the main production process of large diameter steel pipe.It has been widely used in military industry, power plant construction, aerospace industry and Marine industry equipment manufacturing industry,making a great contribution to China's steel pipe industry and energy construction.Medium frequency pipe expander is used in the production of seamless steel pipe, straight seam welded pipe, coil pipe and so on.Expandable steel tube varieties are: various carbon steel, alloy steel, stainless steel and so on.Specification: diameter 89 ~ 1420mm, wall thickness 30 ~ 150mm, length 3 ~ 24m.Steel tubes of various materials can be expanded (such as p91-92 / t91-92, Q235, Q345, 45#, a106b-c, 12CrMoV).
The intermediate frequency tube expanding machine mainly includes: the frame, the main oil cylinder support plate(including the main oil cylinder), the movable push plate, the front support plate, the automatic feeding mechanism, the cutting roller table, the mold support, the intermediate frequency coil adjusting frame (including the intermdiate frequency heating coil), the intermediate frequency power supply, the electrical control system and so on.
