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  3. Briefly describe how to operate the PE p...

Briefly describe how to operate the PE prestressed plastic corrugated pipe equipment (starting steps)

Briefly describe how to operate the PE prestressed plastic corrugated pipe equipment (starting steps)


  1. Mixing:

  Stir HDPE, LDPE and the required auxiliary materials evenly according to the formula requirements. Metals and impurities are not allowed in the materials to prevent entering the extruder and damaging the equipment.

  2. Preheating of the extruder:

  Set different processing temperatures according to different materials. Under normal circumstances, the set temperature of PE material is: 165 degrees in zone 1, 170 degrees in zone 2, 175 degrees in zone 4, 180 degrees in zone 5, and 165 degrees in zone 6. Check whether the current is normal after turning on the power supply. It is found that the current is too high, too low, or there is no current. It can be used after troubleshooting. The heating time is generally about 120 minutes in winter and 90 minutes in summer.

  3. Preparations before starting up:

  1. Check whether the deceleration oil level is in the normal position and whether there is lubricating oil in each transmission part.

  2. Check whether the main engine, forming machine, tractor and cutting machine rotate correctly. Whether the temperature of each area of the extruder has been heated to the specified temperature, please remember that if the temperature does not reach the specified temperature, do not start the machine to avoid damage to the internal parts of the equipment.

  3. Debug the vacuum, water intake and drainage of the molding machine to see if it is normal, and the sizing sleeve of the water tank and

Briefly describe the operating procedures of the prestressed plastic corrugated pipe equipment

  Four, boot:

  1. Put the uniformly stirred plastic particles into the hopper of the extruder, and turn on the speed control button of the main engine. Usually the starting speed is between 10Hz-15Hz and the current is between 25-35. Don't be too high. If the current is too high, you should pay attention to adjusting the temperature.

  2. After the machine adds the pellets, the plasticized tube blank is usually extruded from the die in about 10 minutes. Observe whether the discharge around the mold is uniform. If the wall thickness of the tube is different, adjust it, usually the pipe is discharged quickly around the die. The wall thickness is correspondingly thick. In this case, M20 screws should be used to tighten the material on that side, and the screws on the opposite side should be loosened until the surrounding material is evenly discharged.

  3. Manually pull the tube blank to the sizing sleeve of the forming machine, start the forming machine to adjust the speed between 10Hz-20Hz, and turn on the water inlet pump at the same time. Air valve, hold the tube blank with your right hand, and do not rotate the tube with the sizing sleeve. Use the water pipe on the forming machine to calibrate the tube out of the sizing sleeve. At the same time, slowly close the deflation valve with your left hand. The vacuum will gradually increase and the vacuum will be Adjust to the required vacuum, usually the mixed PE material can be between -0.02Mpa. The lower the vacuum pump is, the better under the condition of ensuring the appearance of the pipe and corrugated molding.

  4. Pull the formed tube to the tractor. The pulling speed should not be too fast or too slow. Too fast will cause the tube to be corrugated and too slow. The tube will bend and deform. The function of the tractor is matched with the speed of the forming machine. Send the pipes to the sawing machine evenly.

  5. Making flat tubes:

  1. Turn on the seven-zone heating switch, and set the normal temperature at 120-180 degrees according to different materials.

  2. When processing flat tubes, the production speed should not be too fast, but generally should be kept at one meter per minute

  Regarding the speed, too fast will lead to bad, and the flat tube made will bounce back, while the cold water tube in front will only use one tube.

  3. When the oven temperature (zone 7 temperature) is reached, open the six water pipes behind the forming machine and symmetrical them on both sides. The temperature of cold water shortage is preferably between 4 and 10 degrees. The cylinder is pressed down to the specified position. Generally, the PE material is held at approximately 85 mm near the oven roller rack, is held at about 80 mm by the traction roller rack, and the top wheels on both sides are adjusted to a specified width.

Briefly describe the operating procedures of the prestressed plastic corrugated pipe equipment

   4. Precautions for manufacturing flat tubes: 1) Uniform oven temperature. 2) The wall thickness of the round tube is uniform. 3) Cool uniformly.

  5. Tube flattening tube type: 60x22 flat tube is extruded by a 50-diameter tube die, 72x22 flat tube is extruded by a 60-diameter tube die, and 90x22 flat tube is extruded by a 70-diameter tube die.

  Six, cutting:

  1. The cutting air pressure is usually between 1.5 MPa and 2.5 MPa. The speed of the compression cylinder, the lifting saw cylinder and the reversing cylinder can be adjusted, and the cutting clamping and reversing time can be adjusted according to different specifications.

  2. Adjust the limit switch of the pipe length, and reverse the control loop to adjust the limit switch.

  Seven, shutdown:

  Turn off the water inlet pump, wait for the water level of the forming machine to stop the main engine speed control, then stop the vacuum pump and then stop the water pump, and then stop the forming machine speed control and tractor speed control after the pipe is pulled out, and then turn off the power supply.

  8. Matters needing attention

  1. No scale, impurities or corrosive liquids are allowed in the water to prevent damage to the vacuum pump.

  2. Working steps of the forming machine:

  First start the submersible pump until the water level in the water tank reaches, then start the vacuum pump. Do not open the too large or too small inlet valve to keep the water level at the specified position. The water level is too high to allow the vacuum pump to absorb too much water, which will cause the vacuum pump motor to overflow and overheat for a long time. Long-term low water level will result in no water, and no water will cause the seal of the water pump and vacuum pump to wear and reduce the service life. The water inlet of the ordinary water tank is slightly larger than the water inlet of the forming machine, and the excess water will be sucked away by the vacuum pump. When you stop working in the northern area in winter, you must clean up the water in the water tank to prevent the pump and vacuum pump from freezing, which will cause normal production to fail the next time you start it.

If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.


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    • METAL PRESTRESSED CORRUGATED PIPE MACHINE
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