BATTE Machinery China
WhatsApp: +86 158 38331071    HOT LINE: +86 371 67991755      EMAIL: info@battemachinery.com
Batte melt pump > News

Melt Pump

Screen Changer

Feeding System

melt blown progress

contact us

Batte Machinery Zhengzhou Co., Ltd.
E-mail: info@battemachinery.com
whatsapp: +86 158 38331071
Tel: +86 371 67991755
After-sales Tel: +86 371 67997677 / 67997877
Address:No.11 Changchun Road, High-tech Zone, Zhengzhou, China.

News

Internal structure of the melt pump and choice of material

Melt extruder pumps are formed by the tooth profile of two gears, the pump body and the side plate of the space constitutes the pump's feeding area, conveying area and discharge area. Gear is the core part of the extrusion melt gear pump, its structure in various forms: according to the meshing method can be divided into internal and external meshing mode; according to the tooth profile curve can be divided into involute gears, arc gears, cycloid gears, etc.; according to the teeth can be divided into straight gears, helical gears, and herringbone gears, etc., but in the transmission of plastic melt is most commonly used in the involute straight or helical teeth of the external meshing gear pump.

melt extruder pump

melt extruder pump

As the hot melt gear metering pump is in the high temperature, high pressure conditions of continuous work, and transport of plastic melt generally has a high viscosity, and some also has a certain corrosive. Therefore, the requirements of the melt pump material to temperature, wear, corrosion resistance, to have sufficient strength and dimensional stability. Usually the pump is mainly made of alloy tool steel, gears and shafts into one, so that under high torque conditions more reliable.

extrusion melt gear pump

extrusion melt gear pump

Extrusion melt gear pump lubrication and sealing problems are more complex, in order to avoid contamination of the plastic melt, it can not use general lubricant or grease lubrication, but with the help of the transported plastic melt for self-lubrication, so the pump bearings and sealing structure must be adapted to the special properties of the plastic melt. Small and medium-sized pumps are generally heated and insulated with electric heat, while large pumps use jacketed pump body with fluid temperature control.

polymer melt pump

polymer melt pump

Email: info@battemachinery.com

WhatsApp: +86 158 38331071

Previous:What are the characteristics of Melt pumps for PET strapping lines?
Next:Application and technical parameters of micro reaction kettle pump