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​Routine maintenance of twin-screw extruder

by:TENGDA     2023-02-07
The twin-screw extruder can concentrate a series of chemical basic unit processes, such as solid transportation, pressurization, melting, exhaust, dehumidification, melt transportation and pumping, on the screw in the extruder. machine. Compared with single-screw extruder, twin-screw extruder can make the melt more fully mixed, so it is more widely used.
Daily maintenance method of twin-screw extruder:
1. After 500 hours of use, there will be iron filings or other impurities from gear grinding in the gearbox, so the gears should be cleaned and the lubricating oil of the gearbox should be replaced at the same time.
2. After using it for a period of time, it is necessary to conduct a comprehensive inspection of the extruder to check the tightness of all screws.
3. If the power is suddenly cut off during production, the main drive and heating stop. When the power is restored, reheat each section of the barrel to the specified temperature and keep it warm for a period of time before starting the extruder.
4. If it is found that the instrument and the pointer have turned to the full scale, check whether the contact of the thermocouple equilateral line is good.

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