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    2. Alloy screw

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      Alloy screw

      Alloy screw

      • Specifications:
         
        Screw diameter: 15-300 mm
         
        Maximum length: 8000mm
         
        Inner diameter of barrel: 15-300 mm
         
        Maximum length: 4000 mm
         
         
         
        Different alloy materials can be selected according to different raw materials
         
         
         
        Substrate material:
         
        1)38CrMoAlA(JIS SACM645)
         
        Alloy material:
         
        1) Nickel base alloy + tungsten carbide
         
         
         
         
         
        Treatment process:
         
        heat treatment
         
        Nitriding treatment
         
        Spraying bimetallic alloy
         
        Centrifugal casting of bimetallic alloy
         
         
         
        Technical parameters:
         
        Nitriding depth: 0.50mm-0.80mm
         
        Nitriding hardness: 58-62hrc
         
        Surface roughness: RA 0.4
         
        Screw straightness: 0.015mm
         
        Double alloy depth: 3mm
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