Function and advantages of film extrusion melt pump

The thin film extrusion melt pump is mainly used for the transportation, pressurization, and metering of high-temperature and high viscosity polymer melts, and is a key equipment in the thin film extrusion process. Its function is to pressurize and stabilize the high-temperature plastic melt from the extruder, and then send the flow rate steadily into the extruder head, ensuring the continuity and stability of the film extrusion process.

Its advantages are mainly reflected in the following aspects:

1. Improving film size accuracy: Melt pumps can effectively reduce material output instability caused by extruder parameters, thereby reducing film size tolerances and improving product quality.

2. Increasing film production: The melt pump improves extrusion efficiency and reduces the pressure requirements on the screw, allowing the screw to extrude at high speed and efficiency, thereby increasing film production.

3. Reduce energy consumption: When used in conjunction with an extruder, the melt pump can reduce unit energy consumption and improve production efficiency.

4. Extending equipment lifespan: The melt pump reduces the pressure inside the extruder barrel, reduces wear between the screw and barrel, and extends the service life of the extruder and related equipment.

5. Easy to detect and control: The melt pump has linear extrusion characteristics, making it easy for upstream and downstream equipment to coordinate and achieve online monitoring and feedback control of the entire extrusion process.

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