PE Screw Barrel

Screw diameter  :14mm-300*8000mm

L/D = 10-60

Surface Roughness :Ra0.4um

Linearity of the screw: ≤0.015mm

Linear axis limit: ≤0.02mm

Hardness after Hardening & Tempering: HB260-300

Fragility of Nitration:≤Two grade

Treatment:

Nitriding treatment(>100 Hours)

Depth of Nitrided Layer: 0.5-0.8 mm

Hardness of Nitrided Layer: >950Hv

Hard Chrome Plating treatment:

Thickness of Hard Chrome Plating Layer: 0.03-0.08mm

Hardness of Hard Chrome Plating Layer: ≥950HV

Nickel alloy plating.treatment:

Bimetallic Barrel Centrifugal Casting (Inlay Alloy)

Bimetallic Screw: Plasma Alloy Coating Spraying

Depth of Bimetallic Layer: >2mm

Hardness of Bimetallic Layer: HRC55°-65°

Bimetallic Alloy level:  

Level A - containing Tungsten of 40%

Level B - containing tungsten of 25%

Level C - containing tungsten of 9.5%