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Material material:

1, commonly used materials: 38crMoAIA, quenching and tempering. Qualitative. Nitriding treatment, surface hardness：HV = 900 nitriding depth：0.5-0.8mm

2, commonly used materials: surface WC/CO spray welding, can effectively improve the service life of the screw.

Structural features:

1. the structure is simple and the price is low.

2. suitable for plasticizing extrusion of polymers, suitable for extrusion processing of granular materials. The shear degradation of polymers is small, but the material stays in the extruder for a long time.

3. easy to control, simple process control.

4., it has excellent mixing and plasticizing capacity. The material has short residence time in the extruder and is suitable for powder processing.

5. the output is large, the extrusion speed is fast, and the energy consumption is low.