Flat twin screw extruder scope of application

Time:2022-09-19

  flat twin screw extruderWidely used in rubber, plastic and engineering resin filling, blending, modification, strengthening, chlorinated polypropylene and high absorbent resin wave treatment; Degradable base material extrusion, polyamide polycondensation, polyurethane polymerization carbon powder, magnetic powder granulation, cable insulation materials, sheath materials, low smoke low halogen flame retardant PVC cable materials and various silane cross-linked materials preparation.

Flat twin screw extruder scope of application Product characteristics.

1. parallel twin-screw extrusion system

1. The screw and cylinder adopt "building block" structure, which has good interchangeability and can be used in any combination according to different material processing technologies; the cylinder body adopts nitrided steel and bimetallic materials, which are wear-resistant, corrosion-resistant and prolong service life;

2. The threaded element adopts nitrided steel and high-speed steel, the curve adopts computer-aided design, and the unique processing technology ensures that the normal tooth surface gap of the threaded working section is large and the self-cleaning is good;

3. The specially designed connection mode and transmission device enhance the strength of the threaded element and the mandrel. The above measures realize uniform material dispersion, good mixing and plasticizing effect, and the purpose of material lag is to keep the time short and the conveying efficiency is high.

2. deceleration system

Special plastic machinery reducer, transmission parts are made of high quality, super alloy carburized carbon steel, combined with carburizing, quenching, grinding process manufacturing, the key parts to increase the surface strengthening treatment, tooth surface strength HRC54-62. Core hardness HRC30-40. Gear 6. The system has the characteristics of high speed, high torque and low noise.

3. feeding system

Twin-screw mixer quantitative feed system, feed uniform and accurate, no rack phenomenon.

4. electrical control system

The electrical appliance adopts imported components, the control panel is a man-machine interface, the equipment adopts "module" control (can also be configured according to user requirements), the multi-function module has a clear structure, and has a safety full interlocking device (such as lubrication pressure loss protection, head pressure protection, overcurrent protection, etc.), which truly reflects the operation of the equipment, has accurate control, high sensitivity and convenient operation.

5. heating system

Aluminum casting, copper casting, ceramic resistance heating device, uniform heating, fast heating, high temperature control accuracy.

6. temperature control system

Dual-channel temperature control meter, sensitive response, convenient temperature setting and adjustment, high temperature control accuracy.

7. cooling system

Water cooling, oil cooling, air cooling two forms, fast cooling, uniform, good effect.

8. vacuum system

Built-in vacuum system, the vacuum degree can reach -0.09Mpa., So as to ensure the full plasticization of the material and improve the quality of the product.

9. auxiliary equipment

According to the different process requirements of users, we can choose cold belt cutting, drag chain traction cutting, air-cooled mold surface heat, water ring heat and other types of cutting.

The gear box of flat twin screw extruder is an important part of flat twin screw extruder. Its structural design directly affects the normal operation of the whole system. Because the gear box of the flat twin-screw extruder relies on the output shaft for rubber mixing, the center distance between the two screws is relatively small, the output structure requires high rotation accuracy, and the product design and processing are difficult. The design of parallel twin-screw extruder gearbox on the domestic market mostly adopts the technology introduced from abroad in the 1990 s. Due to the different materials and production processes, there are many defects such as low power, low reliability, high noise and poor sealing performance.


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