Nitriding Screw and Barrel for PVC/ PP/ PS Extruder Screw Barrel
Model No.: Extruder screw cylinder
Screw Diameter: Ø 15- Ø 300
L/D ratio: 15-46
Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc.
(3)4Cr5MoSi V1 (JIS SKD-61)
Bimetallic alloy materials:
2)Ni-based alloy/Deloro alloy
5)Tungsten carbide/Wolfram carbide
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 950-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
Focus on quality and service.
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Product Categories : Extruder Single Screw And Barrel
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