PVC Screw and Barrel for Plastic Extruder Machine

PVC Screw and Barrel for plastic extruder machine
1. Material: 38CrMoAlA
Nitriding treatment
Surface hardness: HV≥ 900
Nitriding depth: 0.5-0.8mm
Screw straightness: 0.015mm
Chrome layer hardness after nitride: ≥ 950Hv

2. Base material: 38CrMoAI A, Special alloy is welded on the flight of screw, prolong life of screw.
3. Nitride treatment
Hard chrome plating
High frequency plating
Spraying bimetallic alloy for corrosion resistance & abrasive resistance

4. Easy wearing parts of barrel made from anti-wear alloy can be improved abrasion performance.

Singel screw injection molding machine

1.Size : screw diameter 20mm-500mm

2.Maximum screw length : 10000mm

3.Barrel inner bore diameter : 500mm

4.Material 38 CrMoAIA

      40CrMo       42CrMo

5.High quality alloy steel

6.Technology: nitriding treatment

    Alloy coating sparying

    Heating treatment

    Screw fully hardening

7. Specification : Depth of nitrition layer 0.5mm-0.8mm

8.Nitriding treatment , surface hardness:HV>900-1000

9.Fragility of nitrition : less than grade 1

10. Surface roughtness : Ra 0.4um

11.Surface of hardness of nitrated Cr coating layer >950HV

12.Thickness of Cr coating layer :0.03-0.08mm

Used for granulation , PP, PE, PA,PC,ABS,AS etc

We can manufacture various kinds of screw barrels!