Extruder single screw barrel
- Courier
- In detail
Specification:
Diameter: Ø15-Ø300
L/D ratio:15-50
Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)Cr12MoV(JIS SKD-11)
4)4Cr5MoSiV1(JIS-SKD61)
5)9Cr18MoV
6)40Cr
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
PTA bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 950-1100HV
Nitrided brittleness: ≤2 grade
Surface roughness: Ra0.4μm
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: Higher than 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Bimetallic hardness: HRC50-65
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