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Description:
parallel double screw barrel1.Depth of nitration case:0.4-0.7mm
2.Hardness of nitration:HV800-1050
3.Roughness:RA0.4
parallel double screwbarrel
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1.Conical twin screw extruder | Screw diameter:35mm-92mm |
2.Counter rotating parallel twin screw | Screw diameter:500mm-180mm |
L/D ration:16-35 | |
3.Co-rotating twin screw extruder | Screw diameter:25mm-120mm |
Steel Material | DIN 41CrA1Mo7 / AST M4140/38CRMoAIA |
Heat Treatment | Tempered and nitride, nitride depth: 0.5 mm – 0.7mm |
Surface hardness: | HV800 – HV1050 |
Chromate plating: | Thickness 0.05 mm – 0.10 mm, hardness HV950 |
Special treatment: | Carbide coating (screw flight) and bimetallic barrel |
Screw straight tolerance | 0.015 mm/m |
Surface roughness | Ra 0.4μm |
parallel double screw barrel
