Applicationt: 
universal
Production Description:
The bimetallic single screw for extruder and injection molding machine in many specifications
The bimetallic single screw for extruder and injection molding machine in many specifications.
The bimetallic single screw's Abrasion resistant and corrosion resistant
Material:High quality alloy steel
1)38CrMoAlA
2)9Cr18MoV
Technics:1)Heat-treatment
2)Nitriding treatment
3)Spray bimetallic-alloy coating
Technical parameter
Nitriding depth:0.50-0.80mm
Nitriding hardness:900-1000HV
Nitriding brittleness:Less than grade 1
Surface roughness:Ra0.4
Linearity of the screw:0.015mm
Hardness of the chrome plating after nitriding:More than 950HV
Chrome plating thickness:0.025-0.085mm
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