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  4. Material requirements and advantages of ...

Material requirements and advantages of double alloy screw barrel

Material requirements and advantages of double alloy screw barrel

  Double alloy screw barrel

   Material requirements for double alloy screw barrel:

  The screw barrel is operated under high temperature, certain corrosion, strong wear and high torque. Therefore, the barrel screw must meet the following requirements.

   1. Corrosion resistance, the material is corrosive;

   2. The residual stress after heat treatment is small, the thermal deformation is small, etc.;

   3. High temperature resistance, no deformation under high temperature;

   4. With good cutting processing function;

   5. Wear resistance, long life;

   6. High strength, high torque and high speed are acceptable.

If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.



Double alloy screw barrel

   Double alloy screw barrel advantages:

   1. Stable and uniform meshing shear, short residence time of raw materials in the barrel, high output of extruded products;

   2. The frictional heat is greatly reduced when the raw materials are plasticized in the barrel.

   3. It has high temperature resistant, corrosion resistant and high wear resistant screw. The advantage is to use the most economical processing and achieve the highest economic benefits for users.

Double alloy screw barrel

   Commonly used cleaning methods for double alloy screw barrels:

   1. Adopt refueling ejection method

If the plasticizing temperature range of the raw material to be replaced is higher than the plasticizing temperature range of the residual material in the barrel, the barrel and nozzle can be heated to the lowest plasticizing temperature of the new raw material, and then add the new refill and continuously inject into the air Until there is no residual material in the barrel.

   2. Use barrel cleaner

  If the raw materials used for injection products are changed more frequently or the plasticization temperature range between the residual material in the barrel and the refueling is quite different, in order to save raw materials and improve work efficiency, it is more economical to use barrel cleaners.

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  • PLASTIC EXTRUSION AUXILIARY MACHINE
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