Extruder Screw Barrel for PVC PP PE

 

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Technical specifications:

Hardness of adjuster: HB260-290

Hardness of nitration: HV800-1050

Depth of nitration: 0.4-0.7mm

Fragility of nitration: Less than grade 1

Roughness of the surface: Ra0.4

Linearity of the screw: 0.015mm

The surface hard chromium plating hardness after nitrogenation: ≥900HV

Chromium-plating layer thickness: 0.05-0.1mm

Hardness of double alloys: HRC56-65

Depth of double alloys: 0.8-2.0mm

 

Materials and processes:

Quality 38CrMoAIA

Quality twin-phase stainless

Quality satellite powder of surface spray

Cold alloys hot alloys

Advanced nitriding

Process of hot sprayed hard alloys

 

 

 

 

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