Planet screw barrel for extruder
The planet screw barrel for extruder that can strengthen the performance of the plastic products.We are a professional manufacturer of screw and barrel which has been in the line for many years,we can make all kinds of screw and barrel according to your requirements.
Heat-treatment:
1.Nitriding treatment
2.Electroplated hard-chrome finish
3.High-frequency quenching
4.Spray coating Bimetallic-alloy
5.Vacuum quenching
Technical specification Hardness After Hardening &Tempering: HB240 -280 Nitrided Hardness: Hv850-1000 Nitrided Depth: 0.45-0.7mm Nitrided Brittleness: ≤Grade 2 Surface Roughness: Ra0.4 Screw straightness: 0.015mm Surface Chromate-plating's Hardness After Nitrided: ≥900Hv Chromate-plating Depth: 0.05-0.10mm Bimetallic-alloy Hardness: HRC56 -65 Alloy Depth: 0.8-2.0mm
Planet screw barrel for extruder
Planet screws