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      Technical Information Home > Technical Information
      Applicable for all products except planetary screw and barrel.

      Base materials

      1)38CrMoAlA (JIS SACM645)      2)42CrMo (AISI 4140)   

      3)4Cr5MoSi V1 (JIS SKD-61)       4)DC53 (JIS G4404)

      5)Cr12MoV (SKD11)                     6)9Cr18MoV 

      Bimetallic alloy materials

      1)Ni-based alloy/Deloro alloy     2)Fe-based alloy 

      3)Co-based alloy                        4)NiCo-based alloy

      5)Tungsten carbide/Wolfram carbide

      Processing technics

      Heat treatment

      High-frequency quenching

      Nitriding treatment

      Bimetallic alloy welding

      Bimetallic alloy centrifugal casting

      Hard-chrome electroplating

      Technical parameters

      Nitriding layer depth: 0.5-0.8mm

      Nitrided Hardness900-1000HV (HRC 55-65)

      Nitrided brittleness: Less than grade 1

      Surface roughnessRa 0.4

      Linearity of screw0.015mm

      Hard-chrome plating hardness after nitriding950HV

      Chrome-plating layer depth0.03-0.1mm

      Bimetallic layer depth3 mm

      Bimetallic layer hardnessHRC 55-70



      Technical Information for planetary screw and barrel assembly

      Base Materials

      1)38CrMoAlA(JIS SACM645)      2)42CrMo(AISI 4140)   

      Processing Technics

      Heat treatment

      High-frequency quenching

      Nitriding treatment

      Ionic nitriding treatment

      Bimetallic alloy weldingt

      Technical Parameter

      Nitriding layer depth: 0.3-0.7mm

      Nitriding hardness: 850-950HV

      Nitriding brittleness: Less than grade 1

      Surface roughness: Ra0.4

      Linearity of screw: 0.015mm

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