US$700.00-871.00
|
1 Piece
(MOQ)
|
Basic Info.
Automatic Grade
Semiautomatic
Tempering Hardness
Hb 260
Nitriding Hardness
Hv 980
Bimetallic Hardness
HRC 58
Depth of Nitriding
0.60mm
Transport Package
Wooden Box
Specification
85*85*1650mm
Packaging & Delivery
Package Size
15.00cm * 15.00cm * 165.00cm
Package Gross Weight
229.000kg
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