extruder screw barrel, extrusion screw barrel, screw barrel, plastic machinery screw barrel

Tywei Screw series screw barrel, extrusion screw barrel, extruder screw barrel, plastic machinery screw barrel, bimetal screw barrel, bimetallic screw
Specifications:
Product name: Screws and barrels for Plastic Injection Molding Machinery
Screw Diameter: Φ10mm-Φ255mm
Material: 38CrMoAlA SKD61 SKD11 40Cr 42CrMo high quality alloy steel
Technology: nitriding treatment, alloy coating spraying, heat-treatment
Appliance: PVC, PP, PE, PA, PC, ABS, AS etc
Technical Index (30g-25000g):
Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 950-1020Hv
Fragility of nitration: Less than grade 1
Surface Hardness of Nitrated Cr coating layer: ≥950Hv
Hardness of Bimetallic Layer: HRC55°-72°
Thickness of Cr-coating Layer: 0.03-0.08mm
Depth of Bimetallic Layer: >2mm