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Zhoushan Vanscrew Machinery Co.,Ltd.
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Price: | 4500.0~5000.0 USD |
Payment Terms: | T/T,L/C |
Place of Origin: | Zhejiang, China (Mainland) |
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parallel twin screw barrel
Material:
Alloy-Steel of High-quality
1)38CrMoALA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)SKD61
Heat-treatment
Nitriding treatment
Electroplated hard-chrome finish
High-frequency quenching
Spray coating Bimetallic-alloy
Vacuum quenching
Technical data
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 |
Type of parallel twin screw barrel:
Φ40/2 | Φ50/2 | Φ65/2 | Φ80/2 | Φ90/2 | Φ105/2 |
Φ125/2 | Φ130/2 | Φ150/2 | Φ180/2 | Φ200/2 |
MAX L/D=36
Parallel twin screw and barrel