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        Block type parallel twin screw and barrel

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        Specifications:

        Parallel twin screw series: Φ 18 - Φ 177mm

         

        texture of material:

        1)W6Mo5Cr4V2

        2)38CrMoAlA(JIS SACM645)

        3)42CrMo(AIS14140)

        4)S45C

         
        Treatment process:

        1) Heat treatment

        2) High frequency quenching

        3) Nitriding treatment

         

        Technical parameters:

        Outer diameter to diameter ratio: 1.55

        Nitriding depth: ≥ 0.4mm

        Nitriding hardness: 900-1000hv

         

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