How to improve the dimensional precision of plastic extrusion molding

Extruder outlet pressure is affected by various factors, there are large fluctuations , will be able to affect the dimensional accuracy of the product , if we install a melt pump between the extruder die outlet and can be used extruder outlet to stabilize pressure fluctuations , making the linear extrusion becomes possible to improve the dimensional accuracy of plastic products, improve the yield of the extruder per unit time . Bart melt pump is a positive displacement transportation equipment, precision gear clearance and volume structure designed to make it possible stable equilibrium extrusion , chemical fiber , granulation, plastic film, sheet, plate , extrusions , pipes, wire and cable , wire drawing , composite extrusion production line is widely used , and achieved good results :

1.To achieve a stable extrusion , extrusion products to improve the dimensional accuracy , reduce scrap rates. In the extrusion process, the feeding amount of the material uniform , the fluctuation of the barrel and the die temperature , screw speed pulsation phenomenon is difficult to avoid . Use melt gear pump feeding system eliminates feeding errors can be greatly reduced fluctuations upstream process passed quickly into the stable working conditions, improve the dimensional accuracy of extruded products , reduce scrap rates.

2.Increase production, reduce energy consumption and achieve low-temperature extrusion, extend the life of the machine .

3.Alinear extrusion characteristics , easy on the downstream device coordination.