Grooved barrel /vaulted screw extrusion machine, usage and system description

Twin Screw Extruder , Double Stage Extrusion
Extrusion process and structures: the machine consists on an extrusion barrel with axial grooves which extend through solids conveying section and the feed section, which vanish at the exit end of the compression portion. The apparatus also consists on a helical thread extrusion screw possessing a maximum channel depth in the feed section, which depth shortens at the exit end. The plastic extrusion composition is going to be packed as a non-rotating mass by the process and apparatus so to fill the solids-conveying and compression sections and add the dead head pressure and extrusion productions to the motor.