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Basic Knowledge of Twin Screw Extruder
Introduction of twin screw extruder
The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in extrusion products. forming process. The auxiliary machines of the twin-screw extruder mainly include pay-off device, straightening device, preheating device, cooling device, traction device, meter counter, spark tester, and wire take-up device. The purpose of the extrusion unit is different, and the auxiliary equipment used for selection is also different, such as a cutter, a dryer, and a printing device.
Twin screw extruder maintenance knowledge
After 500 hours of use, there will be iron filings or other impurities in the gear box. Therefore, the gear should be cleaned and the lubricant of the gear box should be replaced.
After a period of use, a comprehensive inspection of the extruder should be carried out to check the tightness of all screws.
If there is a sudden power failure during production, the main drive and heating stop. When the power supply is restored, each section of the barrel must be reheated to the specified temperature and kept for a period of time before the extruder can be started.
If the steering fullness of the instrument and pointer is found, check whether the contact between the thermocouple and other side lines is good.