Why can the melt gear pump efficiently handle high viscosity melt transportation? ‌

The melt gear pump is naturally suitable for high viscosity working conditions, and its core lies in its positive displacement working principle. The enclosed volume cavity formed by gear meshing ensures a constant displacement per revolution, unaffected by changes in medium viscosity. Even if the viscosity increases from 1000 Pa · s to 10000 Pa · s, as long as the speed is stable, the flow rate will still be accurately output.

 

High viscosity actually helps to reduce melt reflux between gear clearances, improve volumetric efficiency and operational stability. At the same time, it can effectively isolate upstream pressure fluctuations, provide constant pressure and flow for downstream molds, and ensure product uniformity.

In addition, after taking on the task of boosting, the melt gear pump can significantly reduce the back pressure of the extruder, reduce screw wear, extend equipment life, and make the extruder more focused on melting homogenization, improving overall production efficiency and energy efficiency ratio.

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