Screw and barrel for rubber machine

Screw and barrel for rubber machine
Pin Screw and Barrel Specification: Ø75mm~Ø200mm
Cold/Heat Feed Screw Specification: Ø65mm~Ø650mm

Base Materials:
1)38CrMoAlA(JIS SACM 645)
2)42CrMo(AISI 4140)
3)Cr12MoV(JIS SKD-11)
4)4Cr5MoSiV1(JIS SKD-61)
5)9Cr18MoV
DC53 (JIS G4404)

Bimetallic Alloy Materials:
1)Fe-based alloy
2)Ni-based alloy
3)Co-based alloy
4)NiCo-based alloy
5)Wolfram carbide

Bimetallic alloy level:
Alloy powder including 40% Wolfram Carbon
Alloy powder including 25% Wolfram Carbon
Alloy powder including 9.5% Wolfram Carbon

Processing Technology:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding

Technical Parameter:
Nitrided layer depth:0.50-0.80mm
Nitrided hardness: 950-1100HV
Nitrided brittleness: Less than 2 level
Surface roughness: Ra 0.4μm
Linearity of screw: 0.015mm/m
Hard-chrome plating hardness after nitriding: ≥950HV
Chrome-plating layer depth: 0.025~0.10mm
Bimetallic layer depth: 3-5 mm
We can manufacture all types of screws and barrels according to clients’ requirement.