Noise Analysis Of Double Alloy Extrusion Screw Barrel

In the extrusion process, extruder screw rotation and will give a warning sound when the material in the cylinder wall friction, the friction behavior occurs because no depends on the following four reasons:

I. extruder screw support with drive shaft assembly clearance is too large, rotating work two-axis misalignment error is too large.

II. bending deformation of extruder screw, shaft center line straightness tolerance is bigger.

III. extruder barrel end with motor connection flange end surface and perpendicular to the center line of cylinder could not guarantee error.

IV. extruder screw Assembly in the extruder barrel, 20 concentricity error.