Bimetallic screw barrel nozzle tip for injection molding machine

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    Main Base materials
    1.38CrMoAlA (SACM645)
    Main Alloy Materials
    1. Ni-based alloy/Deloro alloy
    2. SKD-61 (Special Tool Steel)
    2. Tungsten carbide/Wolfram carbide
    3. 42CrMo (Ultrahigh StrengthSteel)
    3. NiCo-based alloy
    4. DC53 (Cold WorkDie Steel)
    4. Fe-based alloy
    5. W6Mo5Cr4V2 (High-SpeedToolSteel)
    5. Co-based alloy
    Processing Technics
    1. Heat treatment
    Technical parameters
    Nitriding layer depth:0.5-0.8mm
    2. Quenching
    Nitrided hardness:900-1000HV
    3. Nitriding treatment
    Bimetallic layer depth:3 mm
    4. Bimetallic alloy welding for screw
    Bimetallic hardness:57~69HRC
    5. Bimetallic alloy centrifugal casting for barrel
    Hard-chrome plating hardness after nitriding:≥950HV
    6. Hard-chrome electroplating
    Chrome-plating layer depth:0.03-0.09mm
    Linearity of screw:0.015mm
    Surface roughness:Ra 0.4