- Model NO.: Customized
- Automation: Automatic
- Screw Barrel: Twin Screw (Parallel Twin Screw Coincal Twin Screw
- Nitrided Hardness: 900-1000hv
- Surface Roughness: Ra0.4
- Trademark: Zhongyang
- Origin: China(Mainland)
- Screw: Twin-Screw
- Computerized: Computerized
- Nitrided Layer Depth: 0.5-0.8mm
- Nitrided Brittleness: Less Than Grade 1
- Linearity of Screw: 0.015mm
- Specification: ISO9001: 2008 approved
- HS Code: 84779000
Specification: (Parallel twin screw )
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
The compression ratio of screws can be designed according to different products and ingredients
Technical Information
Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
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
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly
Experienced manufacture, we will be the best choice.
Gas Cylinder Manifold,Oxygen Cylinder Manifold,Cylinder Piping Manifold
Mig Welding Torches,Mig Spare Parts Co., Ltd. , http://www.nsweldingparts.com