Extrusion melt pump for plastic sheet extrusion
Melt pump is mainly used for high temperature and high viscosity polymer melt conveying, supercharging and metering. Its main function is to increase and stabilize the high temperature melt from the extruder, and keep the melt flow accurately and stably to the extruder head. Now, the melt gear pump has been widely used in chemical fiber, granulating, plastic film, sheet, sheet, sheet, section, pipe, wire, cable, wire drawing, compound extrusion line. The machinable materials almost cover most of the polymer materials, such as PE, PC, PP, PVC, HIPS, PS, PA, TPUR, and fluoropolymer. Polysulfone, polyester, thermoplastic elastomer, rubber and thermal adhesives.
The high precision gear gap is adopted in the ZB-D non pulsating melt pump of marine science and technology, which can effectively reduce the pressure of the barrel in the extrusion process, reduce the friction between the screw and the barrel, and reduce the load of the thrust bearing of the gear box, and can effectively solve the problem of the exhaust gas of the extruder. The pump adopts filling seal and mechanical spiral seal to effectively prevent leakage. It has the characteristics of high temperature resistance, high pressure, high wear resistance and corrosion resistance. It strengthens the high torque and low shear of the pump body. The pump body has high smoothness, and it optimizes the self lubrication system and the inlet and outlet flow channel. It adopts the linear flow path design to effectively reduce the residence time of the material in the pump, so that the material can reach the . The plasticizing effect is achieved to achieve a stable and balanced extrusion. It is more suitable for extrusion of PC, PMMA and other transparent products and PVC thermosensitive materials.