twin conical screw and barrel

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twin conical screw and barrel
Posting date : Dec 29, 2009
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39-
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Specifications: Product name: Twin Conical screws and barrels Size: Screw OD: Φ35mm-Φ200mm Length: ≤10000mm Barrel ID: Φ35mm-Φ200mm Material: 38CrMoAlA; SKD61; SKD11; 40Cr; 42CrMo; high quality alloy steel Technology: nitriding treatment, alloy coating spraying, heat-treatment Appliance: PP, PE, PA, PC, ABS, AS etc Technical Index: Depth of Nitrated Layer: 0.5-0.8mm Hardness of nitration: 900-1020Hv 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

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