Rubber barrel rubber screw barrel extrusion screw barrel, Barrel for Rubber Machinery, extruder screw barrel Specification: Diameter of pin screw and barrel: Φ 75mm-Φ 200mm Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm L/D ratio: 12-18 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-plat…

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Zhejiang Zhongyang Screw Manufacturing Co., Ltd.

Zhejiang Zhongyang Screw Manufacturing Co., Ltd is a professional designer, manufacturer, rebuilder…

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