Extruder screw
Features
Diameter：Φ15 mm—Φ300mm
Max.length：≤10000mm
Technical Parameters
Modification hardness：HB240°～280° Nitriding Hardness：HV850°～1000° Nitriding Depth：0.5～0.8mm
Nitriding：≥ Grade 1 Surface roughness：Ra0.4 Straightness of screw：0.015mm
Chrome layer thickness：0.05～0.10mm Double alloy depth：0.8～2.0mm
Double alloy hardness：HRC56°～65°
Material
High quality alloy steel, 38CrMoALA (JIS SACM645), 316 stainless steel, SKD61
Heat treatment
Nitriding treatment, electroplating hard chrome layer, high frequency quenching, spraying corrosion resistant, wear resistant bimetallic layer, vacuum quenching
Screw type
For different formulations and products, the screw can be used: ordinary type, pin type, barrier type, separation type, exhaust type and so on.
