Rubber pined screw and barrel specification: Φ75mm~φ200mm
Rubber cold or hot-feed screw and barrel specification: Φ30mm~φ250 mm
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Materials:
Alloy-steel of high quality
1) 38CrMoAlA(JIS SACM645)
2) 9Cr18MoV
technical parameters:
Nitrided Hardness: HV 900-1000
Nitrided Case Depth: 0.50mm-0.80mm
Nitrided Brittleness: Less Than Grade 2
Surface Roughness: Ra 0.4
Screw Straightness: 0.015mm
Surface Chromium-Plating's Hardness After Nitriding:≥900HB
Chromium-Plating Depth: 0.05~0.10mm
Alloy hardness: HRC50-65
Alloy depth: 0.8mm-2.0mm
Advanced nitriding process
Corrosion&Abrasion resistance bimetal spraying process |
