Specifications
1.blow machine single screw and barrel
2.material:alloy-steel of highquality
3.processed to drawing or your request
2.material:alloy-steel of highquality
3.processed to drawing or your request
Features Specifications: injection single screws and barrels for blowmachine .
Instructions for injection single screws and barrels for blow machine:
1.We are a professional company specialized in manufacturing many types ofscrew, the barrel can be applied on all types of injection mouldingmachine,rubber hot-feeding extruder, rubber cold-feeding extruder, pin barrelcold feed extruder, plastic extruder with different specifications.
2.Themodels of screw include:
2.Themodels of screw include:
Variable pitch and variable depth, variable pitch and equal depth, variabledepth and equal pitch, and equal depth and pitch.
Groove multi-die type, composite type, mixing type and separatingtype.
Material:
Alloy-steel of high-quality
1)38 CrMoAIA(JIS SACM645)
2)42CrMo(AISI4140)
3)9Cr18MoV
4)CW6Mo5Cr4V2
5)SKD61
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Vacuum quenching
TechnicalParameter |
| Steel Material | DIN 41CrA1Mo7 / AST M4140 / GB38CrMoAlA |
| Deepness of Nitriding Layer | 0.7 mm -0.9 mm |
| Hardness of Nitriding | HV900 - HV1,000 |
| Nitriding Brittleness | ≤Grade 1 |
Chromate plating | Thickness 0.05 mm - 0.10 mm, hardnessHV950 |
Special treatment | Carbide coating on screw flight and bimetallicbarrel |
| Screw straight tolerance | 0.015 mm/m |
| Surface roughness | Ra 0.4μm |
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