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      Product features

      Diameter: from 15 mm - 500 mm

      Maximum length: ≤10000mm


      Mainly used in film blowing, pipe, profile, sheet, granulation, cable and other single screw extruder products.



      Extruder screw barrel can be mainly subdivided into:

      1. Screw barrel of film blowing machine;

      2, blow molding machine screw barrel;

      3. Pipe screw barrel;

      4. Granulating screw barrel;

      5, PP/PE packing with screw barrel;

      6, sheet, profile screw barrel;

      7, wire and cable screw barrel


      Extrusion screw - Extruder screw barrel

      screw:

      1. Normal nitrided (38CrMoAla/SACM645)

      2. Double alloy thread spray-welding bimetallic

      3 full coverage of tungsten steel screw wlfram steel screw

      4. Full hard series hard scries type


      Cylinder barrel

      1. Normal nitrided (38CrMoAla/SACM645)

      2. Internal hole centrifugal casting alloy bimetallic barrel(ABC class 3 and

      3. hard series barrel


      Technical indicators

      Surface hardness: HV≥290

      Nitriding hardness: HV850-1000

      Nitriding depth: 0.45-0.7mm

      Nitride brittleness: ≤ first grade

      Screw straightness :0.015mm

      After nitriding surface chromium plating hardness: ≥900HV

      Chromium plating thickness: 0.05-0.1mm

      Double alloy hardness: 60-70 HRC

      Depth of alloy: 0.8-2.0mm


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