| 摘要 |
PURPOSE: An extruder for copolymer polyester resin is provided which installs an additional quantitative pump at the front of stand and suggests a suitable standard setting of stand, so it improves an extrusion molding property and a fusion(melting) stability, minutes the standard of ROD, reinforces the self-hardness of ROD, and increases the cutting-proof of ROD. CONSTITUTION: An extruder for copolymer polyester resin is comprised of stand(1) having a fixed diameter(D) of standhole(2) and a length(L); a tube(5) having a fixed internal diameter(D') and a length(L') which is attached to the standhole(2) of stand(1); and a quantitative pump(6) installed at the opposite part of standhole(2) to the tube(5) and supplying the copolymer polyester resin in a uniform amount.
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