Bimetallic Barrel

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Bimetallic Barrel

Bimetallic Barrel

Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is chiefly used to manufacture rotationally symmetric stock materials in standard sizes for further machining, rather than shaped parts tailored to a particular end-use.

Advantages

By casting and sintering high quality alloy powder on barrel inside surface with thickness1.5-2.0mm, screws can get higher performance in both wearing & corrosion resistant performance.

 

Application

General plastics & engineering plastics with below 70% glass fibre filling.

  • Description
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  • Technical Parameters

    Product Name

    Bimetallic Barrel

    Material

    JYN3 + JYK Series Alloy

    Suitable Machine

    Injection / Extrusion / Blowing

    Available Size

    Φ < 500mm, L < 8,000mm

    Process Method

    Centrifugal Casting

    Surface Hardness

    52-62 HRC

    Surface Roughness

    < Ra 0.8

    Screw Straightness

    < 0.02mm/m

    JYK Series Alloy

    At this stage, we have JYK-1, JYK-2 and JYK-3 alloy types and treatments for wear fighting.

    TYPE

    COMPONENTS

    HARDNESS
    (HRC)

    ABRASIVE RESISTANCE

    CORROSION
    RESISTANCE

    APPLICATIONS

    JYK-1, C

    Fe, Cr, Ni

    56 - 60

    x

    x

    Recycling & engineering plastics, reinforced additives less than 20%.

    JYK-2, B

    Ni, W, Cr

    58 - 62

    xx

    XX

    Moderate corrosive,reinforced additives less than 35%

    JYK-3, A

    Ni, W, Cr

    60-64

    XXX

    XX

    High abrasive and moderate corrosive plastics

    Suitability: (x good) to (xxx excellent).

     

    TYPE

    INGREDIENTS (WEIGHT %)

    Cr

    C

    Fe

    B

    Si

    W

    Mn

    Ni

    Others

    JYK-1, C

    8

    1.2

    Bal

    4.3

    4

    /

    0.65

    10.8

    < 1.0

    JYK-2, B

    8

    1.4

    5

    4

    3.3

    16.5

    0.5

    Bal

    < 1.0

    JYK-3, A

    8

    1.4

    5^

    4

    3.3

    40*

    0.5

    Bal

    < 1.0

    * Highest composition of tungsten carbide can go up to 45%, which enables the barrels have 5 times wear-resistance capability than normal bimetallic barrels and up to 60% glass fibre filling in general & engineering plastics materials.