Basic Info.
Model NO.
85mm
Condition
New
Customized
Customized
Automatic Grade
Semiautomatic
Structure
Horizontal
Tempering Hardness
Hb 260
Nitriding Hardness
Hv 980
Bimetallic Hardness
HRC 58
Depth of Nitriding
0.60mm
Surface Roughness
Ra0.4
Straightness
0.015mm
Chrome Plating
0.06mm
Depth Bimetallic
2mm
Transport Package
Wooden Box
Specification
85*85*1650mm
Trademark
DONGXIANG
Origin
Zhoushan
HS Code
84779000
Production Capacity
2000
Packaging & Delivery
Package Size
15.00cm * 15.00cm * 165.00cm
Package Gross Weight
229.000kg
Lead Time
60 days (1 - 10 Pieces)
To be negotiated ( > 10 Pieces)
To be negotiated ( > 10 Pieces)
Product Description
Standard
Diameter:φ20-φ300mm
Ratio of length to diameter:L/D=15-55
Materials
38CrMoAIA/SACM645/SKD11/SKD61/42CrMo
Duplex stainless Steels
GH3#
Power Metallurgy Raw Material
Cold/Thermal Spray Hard Metal Process
Advanced Nitriding Process
Corrosion&Abrasion Resistance Bimetal Spraying Process
Technical Index
| Product | Screw&Barrel |
| Tempering hardness | HB240-280 |
| Hardness of nitrogen treatment | HV950-1000 |
| Depth of nitrogen layer | 0.55-0.70 |
| Nitride brittleness | Less than grade 1 |
| Surface roughness | Ra 0.4 |
| Screw straightness | 0.015mm |
| Hardness after nitride | ≥900HV |
| Chromium-plating depth | 0.05-0.10mm |
| Alloy hardness | HRC55-62 |
| Alloy Depth | 1.5-2.0mm |
Production Process as below:
01 Blanking-02 Quenching and Tempering-03 RoughTurning-04 Detecting-05 Semi Finishing Turning-06 Aging Treatment-07 Rough Grinding
08 Crossed Thread-09 Milling Cutter Roove-10 Turning Thread Groove-11 Tempering-12 Polishing Thread Groove-13 Fine Gringding-14 Milling Keyway-15 Fitter-16 Detecting-17 Nitriding or Bimetallic Treatment-18 Cut Off Process Allowance-19 Polishing Thread Groove-20 Detecting
Our Service
Warranty and service: 1years
Our Advantages
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly