The conical twin-screw extruder has the characteristics of uniform plasticization and mixing, high output, stable quality, wide application range, long service life, and direct molding of PVC powder. Equipped with corresponding molding die and auxiliary machines, various thermoplastics, especially hard polyvinyl chloride powder, can be directly extruded into plastic products such as tubes, plates, sheets, rods, films and profiles, and can also be completed Modification of various plastics and powder granulation process [1].

The conical twin-screw extruder has stable performance and can make the melt well plasticized and extruded at a lower temperature. The barrel is equipped with a cast aluminum heater, which has high thermal efficiency, fast and uniform heating, and is equipped with a cooling fan.

The specially designed transmission part is driven by a new variable frequency motor or a direct-drive flow motor, which has stable operation, large transmission torque and high efficiency. It can achieve stepless and stable speed regulation with high precision and energy saving through imported frequency converter or DC speed regulator. It adopts an intelligent dual-display digital temperature controller, which has high control accuracy and small temperature fluctuations. It is equipped with overload protection and fault alarm, screw core oil circulation constant temperature, barrel oil cooling and other functions, and is equipped with a vacuum exhaust pipe device and a quantitative feeding device