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. 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 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. JYS Series Alloy At this stage, we have JYS-1, JYS-2 and JYS-3 alloy types and treatments for wear fighting. ------------------------------------------- Ningbo Jinyi Precision Machinery Co., Ltd. (since 1992) 158 Qiancheng Road, Zhenhai District, Ningbo 315207, China Email: info@jinyiscrew.com www.jinyi-machinery.com www.jinyi-precision.com