Treatment Process:                     

Spray bimetallic layer

Centrifugal casting bimetallic

Technical parameters:

Alloy depth:0.8-2.0mm

Alloy hardness:HRC56-65

Bimetallic Parrelle Twin Screws

The bimetallic Abraasion resistant and corrosion resistant
Material:High quality alloy steel:38CrMoAlA

Screws bimetallic mateial satellit 12

Size

TECHNICAL DATA 
1)Heat-treatment
2)Nitriding treatment
3)Bimetallic-alloy coating spraying
4)Hard-chrom plating

Depth of nitration case:0.4-0.7mm
Hardness of nitration:HV900-1060 (HRc56°-65°)
Roughness of the surface:Ra 0.4μm
Screw straightness: 0.015mm/m
Chrome plating thickness: 0.01-0.1mm
Bimetal coating thickness 1.5-2.0mm

Material:
Base material 38CrMoAlA, Welded inlay on the flight, prolong life of screw. Easy wearing parts of barrel feed inlet made from imported anti-wear alloy can be improvde abrasion performance.
Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares