Product overview：
Specifications:
Screw diameter: 15-300mm
Maximum length: 8000mm
Inner diameter of barrel: 15-300mm
Maximum length: 4000mm
Different alloy materials can be selected according to different raw materials
Base material:
1)38CrMoAlA(JIS SACM645)
Alloy material:
1) Nickel base alloy + tungsten carbide
Treatment process:
heat treatment
Nitriding treatment
Spraying bimetal alloy
Centrifugal casting of bimetal alloy
Technical parameters:
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: 58-62hrc
Surface roughness: RA 0.4
Straightness of screw: 0.015mm
Double alloy depth: 3mm
