Ningbo DW Plastics Machinery Co., Ltd.

DW-S1 Bimetallic Screw for Plastic with Less 30% Reinforced Additives

 

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.

 

PTA bimetallic double-alloy screw barrel is a kind of auxiliary equipment for plastic processing machinery. It is used to extrude or inject plastic materials. Compared with ordinary screw barrels, double-alloy screw barrels have better wear resistance, corrosion resistance, and heat resistance, which greatly improve the lifespan and production efficiency of plastic processing machinery.

 

PTA bimetallic double-alloy screw barrel is composed of two parts: the inner core and the outer jacket. The inner core is made of high-performance alloy steel, which can resist high-temperature and high-pressure environments and maintain long-term wear resistance. The outer jacket is made of special alloy materials, making it more resistant to corrosion and chemical erosion.

 

                                       

 

 

 

Technical Parameters

Product Name : Bimetallic Screw

Material : JYN1 + DW-S1 Series Alloy

Suitable Machine: Injection / Extrusion / Blowing ...

Available Size: Φ14-400mm, Length <8,000mm

Process Method: PTA Spray

Surface Hardness:52-56 HRC

Surface Roughness: < Ra 0.8

Screw Straightness: < 0.02mm/m

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.

Applications

General plastics & engineering plastics with below 30% glass fibre filling.

 

Comparison of DW-S Series Alloy

At this stage, we have DW-S1, DW-S2 and DW-S3 alloy types and treatments for wear fighting. 

Suitability: (x good) to (xxx excellent)

 

    

 

  

 

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