Extrusion Melt Pump in Compound Extrusion Production Line

Bate melt pump is a kind of positive displacement conveying equipment. The design of high precision gear clearance and volume structure makes stable and balanced extrusion possible. It has been widely used in chemical fiber, granulation, plastic film, sheet, sheet, profile, pipe, wire and cable, wire drawing, compound extrusion and other production lines, and has achieved good results.

1. It can achieve stable extrusion, improve the dimensional accuracy of extruded products and reduce the rejection rate. In the extrusion process, the phenomena of uneven material feeding, temperature fluctuation of barrel and nose, and fluctuation of screw speed are unavoidable. Using the melt gear pump can eliminate the feeding error of the feeding system, greatly reduce the fluctuation of upstream process transmission, quickly enter a stable working state, improve the dimensional accuracy of extruded products, and reduce the rejection rate.

2. Increase output, reduce energy consumption, achieve low temperature extrusion, prolong the life of the machine. Because the polymer melt pump is installed in the extruder, the decompression function of the extruder is transferred to the gear pump to complete. The extruder can work at low pressure and low temperature. The leakage flow is greatly reduced and the output is increased. Gear pump is more effective than extruder in establishing die pressure, reducing back pressure of extruder, reducing the axial force of screw and prolonging service life.