Description

We supply various types of screw barrels according to customer&#**9;s requirement. Product name:twin screw barrel Key word:screw barrel, bimetallic screw barrel, extruder screw barrel, screw barrel for injection molding machine, twin screw barrel, screw barrel for extruder machine, screw barrel for injection molding machine. Material:*8CrMoAlA, SKD*1, SKD*1, HPT2B, high quality alloy steel, etc Technology:nitriding treatment, alloy coating sparying, heat-treatment, etc Appliance:PE, PVC, PP, etc Technical index: Depth of Nitrated Layer: 0.**0.8mm Hardness of nitration: *******0Hv Fragility of nitration: Less than grade 1 Surface roughness: Ra 0.4um Hardness of Cr-coating Layer: �**0Hv Thickness of Cr-coated Layer: 0.***0.*8mm Hardness of Bimetallic Layer: HRC****2 Depth of Bimetallic Layer: >2mm