BM Mixing extrusion screw
Depth of Nitration Layer:0.5-0.8mm
Hardness of Nitration:950-1020Hv
Fragility of Nitration:Less than grade 1
Surface Roughness: Ra 0.4 um
Streightness of Screw:0.015mm
Surface Hardness of Nitrated Cr coating Layer:>=950Hv
The Thickness of Cr Coating Layer: HRC55-62
Hardness of Alloy Plating:0.03-0.08mm
Depth of Alloys Layer: >2mm
Introduction: Used for PPR, PE, PC pipes etc.
We can all types of screws and barrels according to clients' requirement.