Specifications
1.38 CrMoALA Material2.Nitriding Depth:0.5~0.7mm
3.High Quliaty Base Material
4.single screw for rubber machine
Singel screw and barrel for Plastic Extruder rubber Machine
According to the customer demands to make the goods.
1. Heat-treatment:
Nitriding treatment
Electroplated hard-chrome
High-frequency quenching
Spray coating Bimetallic-alloy
2. Single Screw and Barrel Ranges:
3. Technical parameter:
| Material | 38CrMoAIA,42CrMo,9Cr18MoV |
| Nitride depth | 0.7mm |
| Surface hardness | HV950 - HV1,020 |
| Fragility of nitrition | less than grade 1 |
| Screw straight tolerance | 0.015 mm/m |
| Surface roughness | Ra 0.4μm |
| Linearity of the screw | 0.015mm |
| Depth of double alloys | > 2ram |
| Bimetallic layer depth | 3mm |
| Screw Diameter: | 15mm-300mm |
| Screw length | L/D ratio 15 - 46 |
