The caution of process planning usage and maintenance for the screw and barrel of single screw plastic extruder;

New method of screw and barrel surface treatment and its processing analysis;

Development on Mini-screw Compressed Tea Machine;

The inverter controls the adding of medicine accurately through regulate the speed of screw rod rotating.

Cutting the extruder screw rod with this improved lathe tool makes the processing accuracy and production efficiency .

Through comparing and analysing the deviation control and hole straightening ability of screw rod and regular pendulum assembly,results show that screw rod deviation control assemblage can improve ROP and its hole straightening ability is higher than pendulum assembly.