Screw barrel for extruding PE film blowing
Specification
- Screw diameter: Ø12-300MML/D:8-55
- Barrel diameter: Ø25-500MMLength:300-800MM
Material
Parameter
- Depth of Nitrated Layer: 0.5-0.8mm
- Heat treatment: Nitriding 96 hours
- Hardness of nitration: 900-1020Hv
- Fragility of nitration: Less than grade 1
Surface roughness: Ra 0.4um
Grade Material Process Standard grade 38CrMoAlA Nitriding 96 hours Bimetallic grade 38CrMoAlA HP/HVOF TC-A grade Tungsten carbide 40% Centrifugal casting TC-B grade Tungsten carbide 25% Centrifugal casting TC-C grade Tungsten carbide 10% Centrifugal casting Feature
38CrMoAlA(JIS SACM645)
42CrMo(AISI 4140)
Cr12MOV(JIS SKD-11)
4Cr5MoSiV1(JIS SKD-61)
9Cr18MoV,etc
High capacity, good transparence, forceful pulling