Zhejiang Zhoushan Screw Barrel for Rubber Tire Processing Machine
| US$1.00-585.00 | 1 Piece (MOQ) |
Basic Info.
Model NO.
screw diameter 20mm-300mm
Control Type
CNC
Automatic Grade
Semi-Automatic
Power Source
Mechanical
Type
Rubber Extruder
Tempering Hardness
Hb240 to 280
Nitriding Hardness
Hv950-1000
Bimetallic Hardness
HRC55 to 62
Depth of Nitriding
0.55-0.7mm
Surface Roughness
Ra0.4
Straightness
0.015mm
Chrome Plating
0.05-0.1mm
Depth Bimetallic
1-3mm
Transport Package
Wooden Box
Specification
20mm/80mm/90mm
Trademark
DONGXIANG
Origin
Zhoushan
HS Code
847790000
Production Capacity
3000
Product Description
StandardDiameter: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 |
| Nitrided brittleness | Less than grade 1 |
| Surface roughness | Ra 0.4 |
| Screw straightness | 0.015mm |
| Hardness after nitriding | ≥900HB |
| 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
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