Conical twin screw barrel
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1. Technical parameters
Hardness: HB240-280
Nitriding hardness: HV850-1000
Nitride depth: 0.45-0.7mm
Nitriding brittleness: ≤ grade 2
Surface roughness: Ra 0.4
Straightness of screw: 0.015mm
After nitriding, the surface hardness of chromium plating layer: ≥ 900HB
Chromium plating thickness: 0.05-0.10mm
Double alloy hardness: HRC50-65
Double alloy depth: 0.8-2.0mm
2.材料和工藝
38CrMoAIA
42CrMo
CW6M05Cr4v2
9Cr18M0V
High quality duplex stainless steel
Zinc 3 # steel
High quality powder metallurgy material
Cold and hot spraying hard metal process
Advanced nitriding process
Corrosion resistance. Wear resistant bimetal spraying process
3. Specifications
Conical twin screw and barrel parameters
