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Screw and Barrel for Plastic Board Machine
Screw and Barrel for Plastic Board Machine
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Product description
Extruder Barrel and Screw Specification : Ø15mm~Ø500mm
Draw Ratio： L/D=7~55
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Technical Parameter |
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| Quenching and Tempering Hardness：HB280-320 | Screw Straightness：0.015mm |
| Nitriding Hardness：HV850-1000 | Nitrided Chromium Coating Surface Hardness≥900HV |
| Nitriding Depth ：0.45~0.7mm | Chromium Coating Thickness ：0.025~0.10mm |
| Nitridng Brittleness :2 Level | Duplex Alloy Hardness：HRC50-65 |
| Surface Roughness：≤Ra0.4 | Duplex Alloy Depth：0.8~2.0mm |
| Materials and Technologies | |
| Quality 38CrMoAIA (41CrAIMo7) | SKD61(H13) |
| Quality Duplex Stainless Steel | Gr12MoV |
| 42CrMo | Quality Powder Metallurgy Materials |
| 40Cr | Hard Metal Cold/Thermal Spraying Technology |
| Zinc 3# Steel | Advanced Nitriding Technology |
| Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology | |