Materil:1)high-quallity 38CrMoALA
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 |
Application and excellent
| Processing application: | Injection molding machines , extrusion machine , bakelite machine | |
| Processing range: | Φ18-Φ300 | |
| Maximum length: | 5000mm | |
| Alloy composition: | WC88Wc/12Co | Grade A:The content of 40% |
| Grade B:The content of 25% | ||
| Grade C:The content of 9.5% | ||
| Alloy thickness: | 2-4mm | |
| Application of the plastic range: | All kinds of glass fiber,the PPA ,PPS ,PA6T ,LCP,electric wood powder,magnetic powder,iron powder and other special engineering plastics | |
The screw barrel can be disign according to your materials and products.
