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Silicone machine screw and barrel

Specification:
Screw diameter: Ø20mm-Ø220mm
Mould clamping force:250T-3200T
Shot weight:30G-30000G

 

Application: 
PP,PE,PVC,ABS,WPC PVC, WPC, PE, High Molecular Sheet Etc.

Technical Information Base Materials:
1)38CrMoAlA(JIS SACM645)

 

Technics:
Heat treatment
Nitriding treatment


Technical parameter:
Nitrided layer depth:0.5-0.8mm
Nitrided hardness:900-1000HV
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

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