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  • 24-Junhui screw pneumatic nozzle group

    24-Junhui screw pneumatic nozzle group

    Screw diameter from Φ16-Φ280

    Effective length of screw: 810mm~6500mm

    Surface roughness: Ra0.4um

    Screw straightness: 0.02mm

    Hard chrome plated hardness after nitriding: ≥950HV

    Chrome plating thickness: 0.03-0.05mm

    Double alloy hardness: HRC55-62

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    Details

    Basic parameters:
    technical parameter:

    Quenching and tempering hardness: HB260-290

    Nitriding hardness: HV950-1050

    Nitrided layer depth: 0.4-0.7mm

    Nitriding brittleness: ≤ one level

    Surface roughness: Ra0.4

    Screw straightness: 0.015mm

    Surface chrome plating hardness after nitriding: ≥900HV

    Chrome plating thickness: 0.05-0.10mm

    Double alloy hardness: HRC56-65

    Double alloy depth: 0.8-2.0mm

    Materials and processes:

    High quality 38CrMoAlA, SKD61; 40Cr; 42CrMo, 304 stainless steel and other materials, high quality stainless steel, high quality powder metallurgy materials

    Cold, hot spray hard metal process, advanced nitriding process, corrosion resistant, wear resistant bimetal spraying process.

    product type:

    Screw diameter from Φ16-Φ280

    Effective length of screw: 810mm~6500mm

    Surface roughness: Ra0.4um

    Screw straightness: 0.02mm

    Hard chrome plated hardness after nitriding: ≥950HV

    Chrome plating thickness: 0.03-0.05mm

    Double alloy hardness: HRC55-62

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