Products<
Film Blowing Machine Screw Barrel
產品介紹
Technology Index:
| Material | 38CrMoAIA | Surface Roughness | Ra0.4 |
| Diameter | Φ20-Φ300 | Screw Straightness | 0.015mm |
| L/D Ratio | L/D=15～55 | Cr-Plated Surface Hardness after Nitriding | HV≥900HV |
| Tempering Hardness | HB240°～280° | Cr-Plating Layer Depth | 0.05～0.10mm |
| Nitriding Layer Hardness | HV850°～1000° | Bimetallic Layer Depth | 0.8～2.0mm |
| Nitriding Layer Depth | 0.45～0.7mm | Bimetallic Layer Hardness | HRC56°～65° （nickel-based alloys） |
| Nitriding Fragility | ≤Grade Two |
