Arburg Injection Molding Machine Screw And Barrel Assembly
Technical Specifications
| Component |
Material |
Main Alloy Composition |
Heat Treatment Process |
Hardness |
Surface Treatment |
Key Features |
| Screw |
KTL-202 All-Hard Alloy |
Cr 7.8%, V 0.8%, Mo 2%, Co 0.8% |
- Quenching: 1020–1050°C
- Tempering: 550–570°C (≥3 times)
- Tail annealed at high temperature |
HRC 60 ± 2 |
— |
Cost-effective solution, stable performance for general plastics |
| Screw Tip Assembly |
KTL-606B All-Hard Alloy |
Cr 16.3%, V 3.4%, Mo 5%, Co 3.2%, Ni 2.2% |
- Quenching: 1020–1040°C
- Tempering: 540–570°C (≥3 times)
- Tail annealed at high temperature |
HRC 60 ± 2 |
— |
Excellent wear & corrosion resistance, suitable for high-performance materials |
| Barrel |
KTL-ST20 Double Alloy (Fe-based) |
Inner alloy: Fe, Ni, Cr, WC, C, B |
— |
Base: HRC 26–28
Inner layer: HRC 58–60 |
— |
- Alloy thickness: 1–2 mm (single side)
- Low thermal expansion
- High resistance to high-temperature softening |
| Nozzle |
SKD61 |
— |
- Quenching: 1020–1050°C
- Tempering: 550–570°C (≥2 times) |
HRC 50 ± 2 |
— |
Good thermal fatigue resistance and durability |
| Flange |
Alloy Steel + Chromium Plating |
— |
- Heat treatment + electroplating |
Base: HRC 30–32
Cr layer: HRC 62–64 |
Chromium plating (0.05–0.08 mm) |
Enhanced wear resistance and corrosion protection |