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The constant temperature characteristic and composition of tube expanding machin
Time:2021-02-26 09:29:19  Clicks:
The constant temperature characteristic and composition of tube expanding machine

1, when expanding production control medium frequency power supply will be steel tube heated to the required temperature and constant, especially in the thermal expansion of high alloy steel pipe, more can reflect the advanced nature of the system to adapt to the thermoplastic deformation temperature region narrow effectively avoid the human factors caused by the alloy steel pipe burnt (high temperature) of scrap product quality decline and die for steel tube, at the same time avoid the low temperature and the thermal expansion unit thrust lever or die fracture is caused by the rising.Ensure the smooth operation of the thermal expansion unit and reject the unstable factors.

2, the constant temperature system of intermediate frequency power supply with constant temperature heating one, thus ensuring thermal expansion pipe heating is always in a state of constant temperature, compared with the manual operation of steel pipe heating, energy-saving health, simplify the procedures, reduce the labor costs, can achieve a operators at the same time monitoring the ten most normal production expansion tube expansion pipe unit, and can be through the pressure, velocity, temperature programming overload protection.Rejecting the unsteady factors caused by the high pressure of the pipe expanding unit in the production of pipe expanding.

3, Each set of unit set two temperature measurement points automatic temperature control, according to the preset different grades of steel pipe heating temperature, select the steel pipe to be expanded heating temperature and keep constant, and can be real-time display and record, can print and save the real-time curve of heating temperature parameters and historical curve.At the same time, relevant information such as temperature, time, working pressure, speed and so on will be automatically stored to guarantee the traceability of data.

Specification of hot expanding steel pipe: diameter Φ60 ~ Φ1420mm, wall thickness 3 ~ 120mm, length 3 ~ 24m.Can be expanded to make various materials of steel pipe (such as P91-92/T91-92, Q235, Q345, 45#, A106B-C, 12CrMoV).

IV. Pipe expander equipment mainly includes: machine base, main cylinder support plate (including main cylinder), movable push plate, front support plate, automatic feeding, discharging roller table, mold support, intermediate frequency coil adjusting frame (including intermediate frequency heating coil), intermediate frequency power supply, electrical control system, etc.

 

Equipment composition of pipe expander: mechanical pipe expander is composed of rotary roller device, lifting cone roller, transmission tie rod sleeve supporting roller, measuring roller, clamp trolley, diameter expanding head, tie rod, tie rod sleeve, hydraulic cylinder and frame of pipe expander, etc.The function of mechanical pipe expander is to expand and enlarge the diameter straight seam submerged arc welding pipe step by step with the expanding head, so as to obtain the roundness, straightness and dimensional accuracy required by standard technology.

Process of the expanding machine: the flushing pipe is sent to the rotary roller device on the center line of the expanding machine.Using this rotary idler, in conjunction with the camera system, the pipe weld is rotated to the exact 12 o 'clock position to ensure that the weld will be able to enter the groove of the upper sector of the tool during subsequent expansion.The lifting cone roller table lifts the pipe to the center line of the expanding machine, and the position is controlled by the displacement sensor in the lifting hydraulic cylinder.The clamping trolley moves forward and is controlled by the metal detector to detect the end of the tube and is stuck firmly. At the same time, a signal is sent to start the feeding roller of the clamping trolley, and the position is controlled by the encoder. In the process of moving, the metal detector at the expanding head detects the front end of the tube, so as to measure the position of the tube.The length of the pipe is combined with the expanding head to automatically calculate the number of expanding steps.The jaws of the clamp can be rotated to avoid damaging the wall of the pipe.In the forward process, the height of the clamp can be adjusted to compensate for the deviation of the straightness of the pipe and optimize the straightening effect of the expanding machine.

All the customers who buy the company's expansion machine our company model complete, quality assurance, manufacturers direct sales.Can be manufactured according to customer requirements.

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