Extrusion device for processing thermoplastic resin, has hollow-bored screw and bar mounted in borehole and deformed such that compression pressure is exerted on screw, where bar is formed from steel

摘要

#CMT# #/CMT# The device has a cylinder with a borehole that includes a screw i.e. double-lead screw, rotated in the borehole. The screw is hollow-bored and a bar is mounted in the borehole and deformed such that a compression pressure is exerted on the screw. The bar is formed from a steel whose rigidity is in a range of 1100 Newton/millimeter square (N/mm2). The bar is deformed under torsion in such a manner that the torsion acts against the torsion of the screw arising during use. #CMT#USE : #/CMT# Extrusion device for processing thermoplastic resin. #CMT#ADVANTAGE : #/CMT# The screw is hollow-bored and the bar is mounted in the borehole and deformed such that the compression pressure is exerted on the screw and the bar is formed from the steel, thus preventing breakage of the screw and extending life time of the screw, and hence improving efficiency of the extrusion device.