Hot Sale Parallel Twin Screw and Barrel

Hot Sale Parallel Twin Screw and Barrel Specification: (Parallel twin screw )Diameter: Φ 45mm-Φ 200mmL/D ratio: 16-35The compression ratio of screws can be designed according to different products and ingredientsTechnical InformationBase Materials:1)38CrMoAlA(JIS SACM645)2)42CrMo(AISI 4140)3)4Cr5MoSi V1 (JIS SKD-61)4)9Cr18MOV5)HPTBimetallic alloy materials:1)Fe-based alloy2)Ni-based alloy/Deloro alloy3)Co-based alloy4)NiCo-based alloy5)Tungsten carbide/Wolfram carbideTechnics:Heat treatmentHigh-frequency quenchingNitriding treatmentHard-chrome electroplatingBimetallic alloy weldingBimetallic alloy centrifugal castingTechnical parameter:Nitrided layer depth: 0.5-0.8mmNitrided hardness: 900-1000HVNitrided brittleness: Less than grade 1Surface roughness: Ra0.4Linearity of screw: 0.015mmHard-chrome plating hardness after nitriding: >=950HVChrome-plating layer depth: 0.025-0.085mmBimetallic layer depth: 3mmWarranty and service:…

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