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Zhoushan Shenglong Machinery Co.,Ltd.
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Price: | 100.0~10000.0 USD |
Payment Terms: | T/T,L/C |
Place of Origin: | Zhejiang, China (Mainland) |
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Extruder screw barrel
1. ISO 9001:2008
Certificate.
2. Advanced nitrating technology
3. Quality twin-phase
stainless
Material:
Alloy-steel of high-quality
1. 38 CrMoAIA(JIS SACM645)
2. 42CrMo(AISI4140)
3. 9Cr18MoV
4. CW6Mo5Cr4V2
5. SKD61
Processes:
1.Heat-treatment
2.Nitriding treatment
3.Electroplate hard-chrome
4.High-frequency quenching
5.Spraying corrosion wear-resisting dual metal layers
6.Vacuum quenching
Technical Parameters:
Screw
1. Nitride Depth: 0.55-0.7mm
2. Nitride Hardness: 850-960HV
3. Surface Roughness: Ra≤0.8um
4. Screw Straightness: 0.015mm
5. Bimetallic Hardness: HRC50-62
6. Bimetallic Depth: 1.5-2.0mm
1. Nitride Depth: 0.55-0.7mm
2. Nitride Hardness: 960-1020HV
3. Surface Roughness: Ra≤1.6um
4. Bimetallic Hardness: HRC50-65
5. Bimetallic Depth: 1.5-2.0mm