High temperature melt pump can improve the dimension precision of plastic products reduce the scrap rate

Extruder the outlet pressure of the existence of the big fluctuation is influenced by various factors, will affect the dimension precision of products, but as long as in the export of extruder and equipped with a high temperature melt pump, between the die can be used in the stable extrusion machine outlet pressure fluctuations, making it possible to linear extrusion, so as to improve the dimensional precision of plastic products, in unit time to improve the output of extruder.

So, the high temperature melt pump is how to improve the dimension precision of plastic products?

1, can realize the stable extrusion, improve the product dimensional accuracy, reduce rejection rate.In extrusion process, the material and capacity is uneven, machine barrel, and the nose temperature fluctuations, the screw rotation speed pulsation phenomenon is inevitable.Using melt gear pump can eliminate system error of feeding, can greatly abate the upstream volatility of technology transfer, quickly into the stable working status, improve the product dimensional accuracy, reduce scrap rate.

2, increase production, reduce energy consumption, low temperature extrusion, prolonging the life of the machine.Due to polymer melt pump extruder installed, put on the reducing function is transferred to the gear pump extruder, the extruding machine can work under low pressure low temperature condition, leakage flow rate reduce greatly, increase production.Than gear pump extruder are more likely to effectively create head pressure, and can reduce the back pressure of extruder, the screw on the axial force drops, prolong service life.

3, linear extrusion characteristics, facilitate upstream or downstream equipment coordination.Due to the gear pump leakage flow rate is less, the transmission capacity of the pump and rotating speed and a linear relationship with basic gear pump speed change, its flow can exactly know, due to the upstream or downstream equipment can be determined with the work of gear pump synchronous speed, using the gear pump inlet and outlet to collect information such as pressure, temperature, realize the whole extrusion process on-line monitoring and feedback control.