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          Products<

          Extruder Screw Barrel

          產品介紹

          Base material:
          1)38CrMoAlA(JIS SACM645)
          2)42CrMo(AISI 4140)
          3)9Cr18MOV​​​​​​​

          Process:
          Heat treatment
          High-frequency quenching
          Nitriding treatment
          Hard-chrome electroplating
          Bimetallic alloy welding
          Bimetallic alloy centrifugal casting

          Technical Parameters:
          Nitriding depth: 0.50mm-0.80mm
          Nitriding Hardness: 900-1000HV
          Nitride brittleness: <= 1
          Surface roughness: Ra 0.4
          Linearity of the screw: 0.015mm
          Chrome after nitriding surface layer hardness: ≥950HV
          Chrome plating thickness: 0.025 ~ 0.085mm
          Depth of double alloys: 3mm
          Warranty and service: 1 year

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