عناصر الاسطوانة للجزء اللولبي الطارد الطارد التوأم المتوازي

Kneading Block/Screw elements for corotation parallel twin screw and barrel   Technical Data: Nitride Case Depth 0.5mm-0.8mm Nitride Hardness 950-1020HV Nitride Brittleness ≤Grade One Surface Roughness Ra0.4um Screw Straightness 0.015mm Alloy Hardness HRC58-72 Alloy Depth 0.5mm-0.8mm Chromium Coating Thickness   0.025~0.10mm Raw Material The Finnished Product Processing Requirments 38CrMoAla, SACM645 Nitriding Treatment Cr12MoV, Cr12 Alloy Steel ...