In order to ensure the safe and stable production of the twin-screw extruder and prolong its service life, it is necessary to strengthen the maintenance of the twin-screw extruder. The basic contents are as follows:
　　 (1) Maintenance during equipment operation
Impurities are not allowed in the material, and hard materials such as metal and sand are strictly prohibited from entering the hopper and barrel; when opening the suction chamber cover, foreign objects should be strictly prevented from falling into the barrel; the extruder should maintain sufficient heat preservation after heating up The screw should only be started at low speed, and the idling time should not exceed 2min. The feeder should gradually increase the speed after feeding by the starvation method.

　　 (2) Daily maintenance host
The engine oil and lubricating oil should be changed every 4000h. If the main motor is a DC motor, check the motor carbon brush once a month and make a record. If necessary, replace the carbon brush; the electric control cabinet should be purged once a month , Check the wear of the screw and barrel quarterly, and make records; check the gears, bearings and oil seals of the gearbox once a year; when the machine is shut down for a long time, the machine should be treated with anti-corrosion and anti-fouling.
　　 After the twin-screw extruder fails, it should be repaired according to the steps and methods described in the equipment manual.

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