Bimetallic Screw

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Bimetallic Screw

Bimetallic Screw

PTA (Plasma Transferred Arc) automatic alloy spaying is a newly applied technology, especially for precise requirement of screws. Comparing to traditional manual alloy spraying, PTA has better performance with the stability and outlook of screws.

Advantages

By spraying high quality alloy powder on screw flight with layer thickness 1.5-2.0mm, screws can get higher performance in both wearing & corrosion resistant performance.

 

Application

General plastics & engineering plastics with below 15% glass fibre filling.

  • Description
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  • Technical Parameters

    Product Name

    Bimetallic Screw

    Material

    JYN1 + JYS Series Alloy

    Suitable Machine

    Injection / Extrusion / Blowing

    Available Size

    Φ14-400mm, Length <8,000mm

    Process Method

     PTA Spray

    Surface Hardness

    46-58 HRC

    Surface Roughness

    < Ra 0.8

    Screw Straightness

    < 0.02mm/m

    JYS Series Alloy

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

    TYPE

    ALLOY
    COMPONENTS

    HARDNESS(HRC)

    ABRASION
    RESISTANCE

    CORROSION
    RESISTANCES

    APPLICATIONS

    JYS-1, B

    Ni,Cr, Si

    52-56

    x

    x

    Recycling & engineering plastics.

    JYS-2, A

    Ni, Cr,W

    54- 58

    xx

    x

    Engineering plastics, reinforced additives less than 20%.

    JYS-3, D

    Co, Cr,W

    44-48

    x

    XX

    Reinforced additives and corrosive plastics less than 15%.