Mini Screw and Barrel for ABS Printer 

                 China Screw Barrel for Plastic Rubber Machines   • Specification    Standards of single screw & barrel for extruder : Screw diameter: Φ15-Φ300mm L/D ratio:15-45   According to different products you can choose General type single screw & barrel, Pin type single screw & barrel, barrier type screw & barrel, separation type screw & barrel , and gas-exhausting type screw & barrel etc.       •Technicial Data    Base Material 1)38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3)4Cr5MoSiV1(JIS SKD-61)  4)42CrMo(AISI 4140)  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  Double-alloy level Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% Surface Treatment Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours) Depth of Nitrided Layer: 0.5-0.8 mm Hardness …