Bimetallic Alloy Screw and Barrel

Location:China
Business Type:Manufacturer, Exporter
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  • Bimetallic alloy technical paramemter

     

     

     

    Item

    Alloy layer chemical composition%

    Hardness

    Resistance to wear

    Corrosion resistance

    Alloy layer chemical component

    Si

    Cr

    Ni

    Mo

    C

    Co

    W

    Fe

    B

    other

    800NiFe-B Grade

    2

    10

    30

    2

    2.5

    5

    5

    2.5

    10

    HRC55-60

    ★★★★★

    ★★★

    800NiFe-A Grade

    3.5

    15

    35

    3

    2

    7.5

    9

    3.5

    10

    HRC58-68

    ★★★★★★

    ★★★★

    800Ni-B Grade

    4

    19

    Yu

    6

    1

    10

    6

    4

    3

    10

    HRC48-58

    ★★★★

    ★★★★★

    800Ni-  A Grade

    4.5

    22

    Yu

    2.5

     

    11

    5

    2

    2.5

    10

    HRC48-58

    ★★★★★

    ★★★★★★

    Barrel outer substrate
    material of barrel:40Cr,45#

    Alloy layer thickness
    the thickness of alloy layer:1.5-4mm

    Gloss: excellent
    glossiness:excellent

    The factory will constantly change the formula due to technical improvements, the above parameters are for reference only.

    Bimetallic Alloy Barrel---Casting 2-4mm alloy layer at the inner wall of barrel

    Bimetallic Alloy Screw---Spraying alloy powder at the top of screw thread

    The alloy power is from Stellit company that is wear-resisting, anti-corrosion and high temperature resistance. The using life of bimetallic alloy screw and barrel is double longer than nitriding barrel.it is suit to process engineer plastic, PSU polysulfone, fluorine plastic and PPO etc.

    We will adjust alloy formula according to different plastic.