Extruder Screw for PVC Making Machinery
Extruder screw for PVC making machinery
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Screw Diameter: Φ15mm-Φ350mm
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Material: 38CrMoAlA; 9Crl8MoV; 42 CrMoV; high quality alloy steel
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Technology: nitriding treatment,Sprey conating Bimetallic , heat-treatment
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Appliance: PP, PE, PA, PVC, PC, ABS, AS etc
Size: screw diameter: 45mm-200mm
Maximum screw length: 10000mm
Barrel inner bore diameter: ø 500mm
Material 38CrMoAlA
40CrMo
42CrMo
High quality alloy steel
Technology:
Nitriding treatment
Alloy coating sparying
Heating treatment
Screw fully hardening
Specification: Depth of nitrition layer 0.5-0.8mm
Nitriding treatment, surface hardness: HV≥ 900-1000
Fragility of nitrition: Less than grade 1
Surface roughtness: Ra 0.4um
Surface of hardness of nitrated Cr coating layer ≥ 950HV
Thickness of Cr coating layer: 0.03-0.08mm
Used for granulation, PP, PE, PA, PC, ABS, AS etc
msn:victoria.shao@live.cn
skype:victoria890712
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