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Zhoushan Vanscrew Machinery Co.,Ltd.
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Price: | 4000.0~5000.0 USD |
Payment Terms: | T/T,L/C |
Place of Origin: | Zhejiang, China (Mainland) |
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conical twin screw barrel
Heat treatment
Nitriding treatment
Electroplated hard chromium coating
Spray coating anticorrosion
Wear resistant bimetallic coating
Technical Parameter |
Hardness of Nitriding | Hv900~1000 |
Deepness of Nitriding Layer | 0.7mm-0.9mm |
Surface Roughness | Ra 0.4μm |
Hardness of Bimetallic Alloy | HRC 55-62 |
Deepness of Bimerallic Alloy | 1.5~2.0mm |
Screw straight tolerance | 0.015 mm/m |
Special treatment | Carbide coating on flight |
Deepness of Titanizing Layer | 0.05~0.10mm |
Conical twin screw barrel