The backpressure of the injection molding machine, also known as the plasticizing pressure, plays an important role in the melting and plasticizing of plastic. This can be seen mainly in the following aspects:
Increase melt density: by increasing the back pressure, you can remove air from the glue to make the glue more homogeneous, thereby improving melt density and product quality.
Improve the fluidity characteristics of melted plastic: an appropriate backpressure can help melted plastic achieve the appropriate pressure before entering the shape, thereby improving its fluidity and ensuring product quality.
Improve the efficiency of injection molding production: adjusting the back pressure can to a certain extent increase the flow rate of molten plastic and reduce the filling time, thus increasing the efficiency of production.
Reduction of energy consumption: based on product quality, by controlling back-pressure, pressure and injection rates can be reduced, thereby reducing energy consumption and ensuring cleaner production.
Removing impurities from plastic melt: back pressure helps compress soft plastic particles formed at the end of the feed area and squeeze air and other volatile substances located between the particles, improving the quality and homogeneity of the surface appearance of the product.
