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PTA (Plasma Transferred Arc) automatic alloy spaying is a newly applied technology,especially for precise requirement of screws. Comparing to traditional manual alloyspraying, PTA has better performance with the stability and outlook of bimetallic screw.
Advantages
By spraying high quality alloy powder on Tie bar 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 flling.