How to achieve metering function of melt pump?

　　The melt pump has excellent function, also known as metering gear pumps are widely used in the extruder. In the area by gear pump outlet side (nesting area), two gear teeth and the alveolar continuous into closed or engaged state space discharge zone decreasing melt within each alveolar, forced extrusion. Melt pump per rotation of the gear, the discharge amount of feed is constant. This cycle manner, carriage and continuous measurement of the melt.

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