- 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
Diameter 90 pinned cold feed screw and barrel
1Diameter from 60mm to 250mm
2 L/D from 12mm to 18mm
3 Hardness After Hardending&Tempering : HB240~280
4 Nitrided Hardness : HV950~1000
5 Nitrided Case Depth : 0.55~0.7mm
6 Nitrided Brittleness :Less Than Grade 1
7 Surface Roughness :Ra 0.4
8 Surface Chromium-Plating’s Hardness After Nitriding≥900HB
9 Screw Straightness 0.015mm
10 Chromium –plating Depth :0.05~0.10mm
11 Alloy hardness HRC 56-65
12 Alloy Depth 0.8~ 0.2mm
13 Material
Quality 38CrMoALA
14 Quality Duplex Stainless Steels
15 GH113
16 Quality powder Metallurgy raw material
17 Cold/Thermal Spray Hard Metal Process
18 Advanced nitriding Process
19 Corrosion & Abrasion Resistance Bimetal Spraying Process
Diameter 90 pinned cold feed screw and barrel
