Pressure that opposes the screw as it returns.
The purpose of increasing back pressure is to make it harder for the screw to return. This increases the shear heating and the mixing of the material, which results in improved polymer melt quality.
Pressure that opposes the screw as it returns.
The purpose of increasing back pressure is to make it harder for the screw to return. This increases the shear heating and the mixing of the material, which results in improved polymer melt quality.