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Zhoushan Qunying Plastic Machinery Manufactory
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Price: | 1.0~100000.0 USD |
Payment Terms: | T/T,L/C,WU |
Place of Origin: | Zhejiang, China (Mainland) |
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Extruder screw barrel with vented design
1. We can manufacture all types of screws and barrels according to clients' requirement.
size:
screw diameter:Φ20-Φ500mm
Maximum screw length:10000mm
2.Technology:nitriding treatment ,alloy coating spraying, heat-treatment applied
3. Technical parameter:
Material | 38CrMoAIA,42CrMo,alloy powder |
Nitridedepth | 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 |