screw and barrel for injection molding machine
1. Material: 38CrMoAl or bematel
2. Produce by your drawings or by our design
Single screw and barrel for injection molding machine
Material: 1.38CrMoAlA (JIS SACM645)
2.SKD61
3.42CrMo
4.High quality alloy steel
Bimetallic screw barrel is much more wear resistant than nitride barrel; therefore the time of using is much longer.
· Hardness of Bimetallic Alloy HRC55-62
· Deepness of Bimerallic Alloy 1.5~2.0mm
· Hardness of Tungsten Carbide Layer HRC70-75
· Thickness of Tungsten Carbin Layer 0.8~1.5mm
Technical Parameter
· Quenching and Tempering Hardness HB240~280
Hardness of Nitriding HV900~1020
· Deepness of Nitriding Layer 0.5~0.8mm
· Nitriding Brittleness ≤Grade 1
· Surface Roughness: 0.045mm
· Screw Alignment: 0.015mm
· Hardness of Chrome Plating Coating after Nitriding ≥950HV
· Thickness of Chorme Plating Coating 0.03~0.08mm
· Deepness of Titanizing Layer 0.05~0.10mm
Screw and barrels for injection molding machines
Mould Clamping Force: 100KN-35000KN,
Shot Weight: 30-30000g
Diameter of Screw: Ø20mm-Ø220mm
Screw can be mated with different heads.
Barrel can be mated with different nozzles.
The compression ratio of the screw can be designed according to different products and mixtures.
| 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 |
Single screw and barrel for injection molding machine
1. Material: 38CrMoAl A Nitriding treatment, Nitriding depth: 0.5-0.8mm
2. Special stainless steel Quenching treatment, hardness: HRC55-58, Suitable for the screw which used for transparent plastic products and high corrosion plastic processing, prolong life of screw.
3. Tungsten alloy. Surface spraying, improve abrasion performance of screw.
1. Material: 38CrMoAl A Nitriding treatment, Nitriding depth: 0.5-0.8mm
2. Special stainless steel Quenching treatment, hardness: HRC55-58, Suitable for the screw which used for transparent plastic products and high corrosion plastic processing, prolong life of screw.
3. Tungsten alloy. Surface spraying, improve abrasion performance of screw
Single screw and barrel for injection molding machine
