Customization: | Available |
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After-sales Service: | Yes |
Warranty: | Yes |
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ZhongYang company (ZY SCREW) was founded in 2006. Located on Zhoushan Islands, it is a manufacturing enterprise specializing
in the design and produce precise screws and barrels. It is one of the top 10 local screw production companies .
Extruder Conical Twin Screw Barrel
1 | base materials: |
2 | 38CrMoAlA (JIS SACM645) |
3 | 42CrMo(AISI 4140) |
4 | 4Cr5MoSi V1 (JIS SKD-61) |
5 | 4Cr5MoSi V1 (JIS SKD-61) |
6 | HPT |
1 | Fe-based alloy |
2 | Ni-based alloy/Deloro alloy |
3 | Co-based alloy |
4 | NiCo-based alloy |
5 | Tungsten carbide/Wolfram carbide |
1 | Heat treatment |
2 | High-frequency quenching |
3 | Nitriding treatment |
4 | Hard-chrome electroplating |
5 | Bimetallic alloy welding |
6 | Bimetallic alloy centrifugal casting |
Nitrided layer depth: 0.5-0.8mm |
Nitrided hardness: 900-1000HV |
Nitrided brittleness: Less than grade 1 |
Surface roughness: Ra0.4 |
Linearity of screw: 0.015mm/m |
Hard-chrome plating hardness after nitriding: Higher than 950HV |
Chrome-plating layer depth: 0.025-0.085mm |
Bimetallic layer depth: 1-3mm |