Parallel twin-screw extruder low power, low reliability

Parallel twin-screw extruders are widely used in filling, blending, modification, reinforcement of rubber, plastics and engineering resins, devolatilization of chlorinated polypropylene and superabsorbent resins; degradable masterbatch, polyamide polycondensation, polyurethane Extrusion of fat addition polymerization; granulation of carbon powder and magnetic powder, insulation materials for cables, sheath materials, low-smoke and low-halogen flame-retardant PVC cable materials and preparation of various silane cross-linking materials, etc. Small models are mainly used for scientific research and teaching.
The parallel twin-screw extruder gearbox is a very important part of the parallel twin-screw extruder, and its structural design directly affects the normal operation of the entire machine system. Since the gear box of the parallel twin-screw extruder relies on the large thrust of the output shaft to carry out rubber mixing, the center distance between the two screws is relatively small, and the output structure requires high rotation accuracy, so it is difficult to design and process this product. The design of parallel twin-screw extruder gearboxes in the domestic market is mostly foreign technology introduced in the 1990s. Due to differences in materials and production processes, low power, low reliability, loud noise, and poor sealing performance are common. defect.