screw and barrel for extruder

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screw and barrel for extruder
Posting date : Jul 07, 2010
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85-
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Size: screw diameter:Φ20-Φ500mm Maximum screw length:10000mm Barrel inner bore diameter:Φ500mm Material: 38CrMoAlA 40CrMo 42CrMo high quality alloy steel Technology: nitriding treatment, alloy coating spraying, heating treatment, screw fully hardening, Depth of nitrition layer: 0.5-0.8mm Nitriding treatment, surface hardness: HV≥900-1000 Fragility of nitrition: less than grade 1 Surface roughness: Ra 0.4um Streightness of screw: 0.015mm Surface of hardness of nitrated Cr coating layer: ≥950HV Hardness of Cr coating layer: HRC55-62 Thickness of alloy plating: 0.03-0.08mm Depth of alloy layer:>2mm Used for granulation,PP, PE, PA, PC, ABS,AS etc We can manufacture various kinds of screw barrels according to the customer’s requirement

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