Plastic Granules Bimetallic Screw Barrel for Plastic Extrusion Machine

NAME: Plastic granules bimetallic screw barrel for Plastic extrusion machine
Product DescriptionBimetallic Screw and Barrel Feature
The 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.
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%
DesigningScrew structure and compression ratio can be designed according to different products & different clamping force requirement.Technology parameter
Depth of Nitrided Layer: 0.5-0.8 mm
Hardness of Nitrided Layer: 950-1020Hv
Thickness of Hard Chrome Plating Layer: 0.03-0.08mm
Hardness of Hard Chrome Plating Layer: ≥950HV
Depth of Bimetallic Layer: 2-3mm
Hardness of Bimetallic Layer: HRC58°-62°
Hardness After Hardening & Tempering:HB260-290
Nitrided Brittleness:Less Than Grade 1
Surface Roughness:Ra 0.4um
Screw Straightness:0.015mm
Advantage
1.Long lifetime,low energy consumption
2.Wonderful plasticizing
3. High wear resistance, anti- corrosion