PET Sheet Production LineWhat are the steps of the operation? Let's all have a brief understanding.

1. PET sheet production line before the start of the inspection work. (1) Check the equipment use and maintenance records to confirm whether the equipment was used normally last time. (2) Determine the experimental materials and impurities that affect the normal operation of the equipment, and understand the basic properties (melting point, softening point, etc.) of the material is appropriate. (3) Check whether all parts of the equipment are in good condition, and whether the power supply and water supply meet the equipment operation requirements.

2.PET Sheet Production LineStart-up operation procedure. (1) Preheat temperature, turn on the main power supply of the equipment, and set the temperature control instrument parameters of each heating zone of the screw and mold according to the process requirements. After the heating temperature of each section reaches the set value, continue to keep constant temperature for 30-60 minutes to further confirm whether the temperature control instruments of each section work normally. (2) When the warm-up is completed and the normal startup is completed, first press the start button and the deceleration switch to observe whether the motor is running normally. After confirmation, add the test material, and then slowly increase the acceleration to the working state required by the process. (3) If the equipment is used in hot weather or for a long time, the water cooling system should be turned on. (4) In the extrusion experiment, the thickness of the extrusion coating can be controlled by adjusting the upper and lower adjustment nuts at the outlet of the mold (the upper nut plays a fine adjustment role). (5) If there is any abnormal situation during the extrusion experiment, immediately press the emergency stop switch to eliminate the abnormal situation, and then start the equipment according to the operating procedure to continue the experiment.

3. PET sheet production line shutdown procedure operation. (1) After the experiment is completed, gradually reduce the screw speed, try to drain the remaining materials in the barrel, and after the materials are drained, raise the snake rod speed to zero. After that, the mold metal is cleaned. (2) Close the cooling water valve switch and valve; close the button; close the additional switch in each area; after that, turn off the main power switch on the equipment control cabinet. In the low temperature environment in winter, after the equipment is used, the cooling water in the equipment should be discharged. To prevent the water cooling system from freezing and cracking in the low temperature environment. (3) After the experiment is completed, clean up the equipment and ground, and dispose of garbage.

4. PET sheet production line equipment maintenance. (1) Every 1000 hours of operation, check the wear of the extruder screw and barrel, check the wear of the sealing ring in the screw chamber, and replace spare parts if necessary. (2) The lubricating oil of the gearbox should be replaced every 1000 hours of operation, and the gears, bearings and oil seals of the gearbox should be checked once a year. (3) When the equipment is parked for a long time, anti-rust and anti-pollution measures shall be taken.

5.PET Sheet Production LineThe note. (1) No sundries are allowed in the materials, and foreign matters such as metal, sand and gravel are prohibited from entering the hopper. (2) The screw is only allowed to start at low speed, and the idling time is less than 1 minute. After timely feeding, the screw speed can be gradually increased, and the screw speed and current cannot exceed the parameters. (3) When turning on the cooling water, slowly open the door to see if the temperature is within the controllable range, and do not turn it on suddenly. (4) When checking the appearance of the coating, the operator must wear high-temperature gloves to prevent high-temperature soup injuries.

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