Can the melt pump deliver high-filler melts?

Hot melt gear pump are mainly used for pressurization and stable flow delivery of extruders or medium and high viscosity polymers, and are generally installed at the discharge port of the extruder. So can the melt pump deliver high-filler melts?

OK. high precision melt pump is used for melts with high filler content, and the performance requirements of the melt pump are extremely demanding. It is very abrasive for high filler content melts and also increases or decreases viscosity, which in turn increases or decreases drive unit pressure and power consumption.

Zhengzhou Batte extrusion melt pump manufacturer will add a coating to the gear of the melt gear pump to protect the tool steel from wear and corrosion for the delivery of melts with high filler content. Zhengzhou Bart wear-resistant melt pump has a special PVD coating, which can process high content of CaCO3 up to 83%. It can also process high content glass fiber (≤45%), carbon black CB, TiO2 and wood powder composite (WPC).

The operation process of the chemical dosing gear melt pump is as follows:

The chemical melt gear pump is a positive displacement conveying device, and the flow rate is strictly proportional to the speed of the pump. It is mainly composed of pump casing, driving gear, driven gear, sliding bearing, front and rear plates, packing seal, etc. The feeding area, the feeding area and the discharging area of the pump are formed by the tooth profile of the two gears, the pump body and the side cover. When working, the melt is transported by the change of the working volume caused by the mutual meshing of the main and driven gears. The working volume is composed of the pump body, the tooth groove of the gear and the bearing with the function of the side plate (ie the feeding area). When the gear rotates in the specified direction, the melt enters the tooth grooves of the two gears in the feeding area. As the gears rotate, the melt is brought into the feeding area from both sides, and the gears mesh again to make the melt in the tooth grooves. The body is extruded out of the discharge area, and sent to the outlet pipe by pressure. As long as the pump shaft rotates, the gear will press the melt to the outlet side, so the pump outlet can reach a very high pressure, but there is no high requirement for the inlet flow and pressure, and even the inlet vacuum can be sucked.

For questions about booster melt pumps, info@battemachinery.com