Bimetallic screw and barrel for extruder 

 Product Description Alloy/Bimetallic screw and barrel for extruder/ rubber and plastic machine parts   Bimetallic Screw and Barrel FeatureThe bimetallic barrel is with 2-3mm alloy layer of anti-abrasion and corrosion and high temperature cast on the inner wall, it will be prolong use life for product than nitriding, bimetallic have more abvious advantages when processing special plastic for project plastic,fluoride plastic,PPO etc.  Base Material               1)38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11)  3)4Cr5MoSiV1(JIS SKD-61)  4)42CrMo(AISI 4140) 5)9Cr18MoV 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 Bimetallic Alloy level                       Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% Designing Screw structure and compression  ratio can be designed according  to different pr…