Plastic Extrusion System Plus Melt Metering Pump Role

The main functions of adding a melt metering pump to a plastic extrusion system include improving product quality, controlling flow, homogenizing the melt, reducing pulsation, lowering extruder loads, and increasing production efficiency, Improve product quality, extend equipment life, reduce unit energy consumption, reduce backflow and temperature fluctuations, and increase extrusion output.

Melt dosing pumps play a key role in plastics extrusion processing, and their role is mainly reflected in the following aspects:

Stabilizing Pressure: Melt dosing pumps are able to provide stable melt pressure, preventing pressure fluctuations, which is important for maintaining the stability of the extrusion process. This is critical to maintaining the stability of the extrusion process and product quality.

Flow control: By adjusting the speed of the melt dosing pump, the melt flow can be precisely controlled to ensure consistency during the extrusion process.

Homogenizing the melt: During the delivery of the melt, the melt dosing pump shears and mixes the melt by rotating gears or screws, thus improving the homogeneity and stability of the melt.

Reduces pulsation: Reducing the pulsation of the melt flow improves the quality of the extruded product.

Reduced extruder load: The use of melt metering pumps reduces pressure fluctuations and temperature fluctuations at the feed end of the extruder, reducing the extruder load.

Increased productivity: Melt dosing pumps help to increase extruder productivity and stabilize the plasticizing process by reducing the retention time of the material in the screw barrel.

Improve product quality: Melt dosing pumps reduce dimensional tolerances of extruded products, reduce scrap and reject rates, and enable ordinary extruders to produce high-precision products.

Extend equipment life: By reducing wear and tear and overuse of the extruder, melt dosing pumps help to extend equipment life.

Reduced energy consumption per unit: the use of melt dosing pumps improves mixing quality and yield, thereby reducing energy consumption per kilogram of material processed.

Reduced backflow and temperature fluctuations: the rotation and meshing of the gears closes the low-pressure chamber, reducing backflow and lowering processing temperatures, which facilitates the establishment of higher output pressures.

Increase extrusion output: The addition of a melt dosing pump to an extrusion system can significantly increase product output.

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