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    Extruder screw barrel technical indicators
    Author:admin  From:The Internet  Time:2015-7-19 10:37:24  Click:3152

    Material selection of high-quality aluminum chromium molybdenum 38 (38CrMOALA) quenched hardness: HB240 ~ 280
    Nitriding hardness: HV≥850
    Nitriding depth: 0.45 ~ 0.80mm
    Nitride fragility: ≤ two
    Surface roughness: Ra0.4
    Linearity of the screw: 0.015mm
    Nitrided Hard chrome plated Degree: HV≥900
    Chrome plating thickness: 0.03 ~ 0.10mm
    Dual alloy hardness: HRC56 ~ 65 (alloy using nickel-based alloys)
    Alloy Depth: 1.2 ~ 3.0mm

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