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Film Blowing Screw Barrel Extrusion Screw Barrel Bimetallic Screw Barrel  

Film Blowing Screw Barrel Extrusion Screw Barrel Bimetallic Screw Barrel

PE blowing film screw barrel, PE film extrusion screw barrel, bimetallic screw barrel, barrier screws, plastic extrusion screw barrel Specification: Screw diameter: Ø 20mm-Ø 220mm Mould clamping force: 250T-3200T Shot weight: 30G-30000G Products could appeal in different mold weight; Different material, different portion, different mold design. Base Materials: (1)38CrMoAlA(JIS SACM645) (2)42CrMo(AISI 4140) (3)4Cr5MoSi V1 (JIS SKD-61) Bimetallic alloy materials: 1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting Technical parameter: Nitrided layer depth: 0.5-0.8mm Nitrided hardness: 900-1000HV Nitrided brittleness: Less than grade 1 Surface roughness: Ra0.4 Linearity of screw: 0.015mm Hard-chrome pl…