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Contact Us
- Contact Person : Ms. Wang Mia
- Company Name : Zhoushan Zhongyang Screw Manufacturing Co., Ltd.
- Tel : 86-574-88114868
- Fax : 86-574-88114878
- Address : Zhejiang,Ningbo,Room 408,Unit 10,Jinshuiwan Building,Changfeng,Yinzhou District
- Country/Region : China
- Zip : 315000
extruder screw and barrel
Product Detailed
Related Categories:Plastic Product Making Machinery Parts
Detailed Product Description
Extruder screw and barrel,parallel twin screw and barrel
Material: 38CrMoAlA
40CrMo
42CrMo
Technics: Nitriding treatment
Alloy coating spraying
Heat treatment
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: HV≥900-1000
Nitrided brittleness: Less than grade 1
Surface roughness: Ra 0.4um
Linearity of screw: 0.015mm
Surface hardness of Cr coating layer: ≥950HV
Hardness of Cr coating layer: HRC55-62
Thickness of alloy plating: 0.03-0.08mm
Depth of alloy layer: 2mm
