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Bimetallic Screw and Barrel

Specification:
Screw diameter: 15-300mm
The maximum length: 8000mm
Barrel inner diameter: 15-300mm
The maximum length: 4000mm

Different materials can be selected according to different materials


Base material:

1) 38CrMoAlA(JIS SACM645)
Alloy Material:

1) Nickel-based alloy + tungsten carbide

Process:

Heat treatment

Nitriding treatment

Sprayed bimetallic alloy

Centrifugal pouring of bimetallic alloys


Technical Parameters:

Nitriding depth: 0.50mm-0.80mm

Nitriding hardness: 58-62HRC                                                         
Surface roughness: Ra 0.4                  
Screw straightness: 0.015mm                        
Double alloy depth: 3mm


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