- Contact Person : Mr. Yuan Nengjun
- Company Name : Zhejiang Dongbin Rubber Machinery Screw Co., Ltd.
- Tel : 0086-0580-8591200,13905804506
- Fax : 0086-580-8592427
- Address : Zhejiang,Zhoushan,No.28 Donghou Road,Jintang Town,Dinghai District,Zhoushan City
- Country/Region : China
- Zip : 316031
Bimetallic barrel for rubber extruder machine
38CrMoAlA (JIS SACM645)42CrMo (JIS ACM440)SKD61Heat-Treatment: Nitrided or BimetallicHardness:>950HV
Technical Index
Technical Specification
Hardness After Hardending&Tempering : HB240~280
Nitrided Hardness : HV900~950
Nitrided Case Depth : 0.55~0.7mm
Nitrided Brittleness :Less Than Grade 1
Surface Roughness :Ra 0.4
Screw Straightness :0.015mm
Surface Chromium-Plating’s Hardness After Nitriding≥900HB
Chromium –plating Depth :0.05~0.10mm
Alloy Hardness : HRC55~62
Alloy Depth :1.5~2.0mm
Quality Powder Metallurgy Raw Materials
Cold/Thermal Spray Hard Metal Process
Advanced nitriding Process
Corrosion & Abrasion Resistance Bimetal Spraying Process
Horniness screw (HTP1:abrasion HTP2:corrosion resistance,HTP3:abrasion and corrosion resistance)
Bimetallic barrel for rubber extruder machine
