screw and barrel for blown film machine



Qunying Plastic Machinery Manufactory is China screws and barrels manufacturers and PVC Screws Barrels wholesalers,we offer wholesale PVC screws and barrels for sale

PVC PP PE PLASTIC INJECTION MOLDING MACHINE SCREW BARREL AUTO PARTS INJECTION SCREW FROM ZHOUSHAN QUNYING
Place of Origin: Zhejiang, China (Mainland)

Brand Name: Qunying

Model Number: QY14101568

Screw style: Plastic injection screw barrel level screw

Screw Diameter: 15mm-360mm

Ratio of length: L/D=12-45

Surface hardness: HV≥ 900

Nitriding depth: 0.5-0.8mm

Based material: 38CrMoAlA

Bimetallic alloy: Cobalt &Tungsten alloy

Standard: ISO9001-2000

Material:High quality 38CrMoAlA
Process:Advanced nitriding & bimetallic process
Hardness After Hardening & Tempering:HB280-320
Nitrided Hardness:HV900-1000
Nitrided Case Depth:0.45-0.8mm
Nitrided Brittleness:Less than Grade 2
Surface Roughness:Ra 0.4
Screw Straightness:0.015mm
Alloy Hardness:HRC 50-65
Alloy Depth:0.8-2.0mm for screw and 1~3mm for barrel

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screw and barrel for blown film machine