Extruder Parallel Double Screw and Cylinder 

Extruder parallel double screw and cylinder Specification: Diameter: Φ 45mm-Φ 200mm L/D ratio: 16-35 The compression ratio of screws can be designed according to different products and ingredients Technical Information Base Materials: 1). 38CrMoAlA(JIS SACM645). 2). 42CrMo(AISI 4140). 3). 4Cr5MoSi V1 (JIS SKD-61). 4). 9Cr18MOV 5). HPT 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 plating hardness after nitriding: >=950HV Chrome-plating layer depth: 0.025-0.085mm Bimetallic l…