Application range of plastic single screw extruder:
A1: Pipe extrusion: suitable for PP-R pipes, PE gas pipes, PEX cross-linked pipes, aluminum-plastic composite pipes, ABS pipes, PVC pipes, HDPE silicon core pipes and various co-extruded composite pipes.
A2: Sheet and sheet extrusion: suitable for extrusion of PVC, PET, PS, PP, PC and other profiles and sheets. Extrusion of various other plastics such as wire, rod, etc.
A3: Extrusion of profiles: adjusting the speed of the extruder and changing the structure of the extrusion screw can be applied to the production of various plastic profiles such as PVC and polyolefins.
A4: Modified granulation: suitable for blending, modification and reinforced granulation of various plastics.
The structure of laboratory mini plastic single screw extruder：
It is a key component for the transportation and plasticization of plastics. Because of its rotation, the plastic is pushed forward to achieve the purpose of compaction, melting and mixing. The thread is composed of different functional sections to achieve better conveying, compaction, mixing, plasticizing effect and high output. The screw material is made of high-quality nitrided steel (38CrMoALA), finished by nitriding and fine grinding. It has high corrosion resistance and wear resistance and long service life.
(2) head flange joint
It is a part of the joint head and the barrel, which is heated by a heating ring to prevent the cooling of the molten plastic.
(3) Transmission system
The transmission system is to rotate the screw evenly with the necessary torque under the selected process conditions to complete the plasticization and transportation of the plastic to the screw. In order to meet the production requirements of various specifications of plastic products, the screw should have different rotation speeds. The machine adopts the variable frequency motor to directly drive the gear box through the coupling, and adopts the governor to realize the speed regulation, so that the screw speed can be smoothly steplessly regulated within the speed regulation range, and the screw speed can be directly read by the tachometer on the control panel. It can also be read directly on the governor.