Polymer melt gear pumps play an important role in the plastics industry by precisely conveying the plastic melt from the extruder, resulting in a significant increase in production line efficiency. As a positive displacement conveying device, the flow rate of the melt discharge pump is strictly proportional to the speed of the pump. Its heart consists of pump casing, main gear, driven gear, slide bearing, front and rear end plates, packing seal and so on. The tooth profile of two gears, pump body, side cover plate together constitute the feeding area, transmission area and discharge area. In operation, it relies on the working volume change caused by the mutual meshing of the master and slave gears to convey the melt.
Extrusion melt pumps have a wide range of applications, which serve the extrusion molding industry of plastic, resin and rubber products, such as pelletizing, film, pipe, plate sheet and so on. According to the tooth direction, it can be divided into straight tooth, oblique tooth, herringbone tooth and so on. These different tooth directions can be applied to different material characteristics and process requirements. For example, straight tooth melt pumps are suitable for materials with higher viscosity and higher pressure, while helical and herringbone teeth are suitable for materials with lower viscosity and lower pressure.
In addition to its application in the plastics industry, the plastic melt pump can also be used in other areas. For example, it can be used in the chemical fiber industry for high viscosity fluid conveying, as well as for a variety of high temperature, high pressure, high viscosity fluid conveying. In the chemical fiber industry, melt discharge pumps can be used in spinning, stretching, winding and other processes to provide a stable high viscosity fluid for the production line.
In a word, melt discharge pump is one of the indispensable equipments in the plastic industry, which serves the extrusion molding industry of various plastic products with its excellent performance and wide application fields. With the increasing development of machinery industry, melt pumps in the domestic market is also gradually adopted by the industry, application, for the development of China's plastics industry has made an important contribution.
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