Heterotropic Engaged Parallel Twin-Screws and Barrel

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Heterotropic Engaged Parallel Twin-Screws and Barrel
Posting date : Nov 24, 2006
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84-
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Ø65/2~Ø150/2 Length/Diameter Ratio: 18~25 The compression ratio of the screw can be designed according to different products and mixtures. This series of two-side circumgyrate parrallel twin-screw & barrel are suit for manufa-cturing pip material,profile,plate material,sheet material,change plastic properties and soft/hard PVC granule making,etc. TECHNICAL SPECIFICATIONS: Material : Quality 38CrMoAlA Hardness After Hardening & Tempering : HB240-280 Nitrided Hardness : HV850-1000 Nitrided Case Depth: 0.45~0.7mm Nitrided Brittleness: Less Than Grade 2 Surface Roughness: Ra 0.4 Screw Straightness: 0.015mm Surface Chromium-Plating's Hardness After Nitriding:≥900HB Chromium-Plating Depth: 0.05~0.10mm Alloy Hardness: HRC50-65 Alloy Depth: 0.8~2.0mm

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