Product Description
Common cold feed extruder for the sidewall of the tire, the tread shape extruder, rubber hose and wire, cable extrusion plastic bags, rubber shoes with film and all kinds of cross section rubber extrusion, calender thermal refining, for glue, etc. Cold feed rubber extruder have widely used in rubber industry in China. In the radial tire production, tread extrusion, compound tread extrusion, plastic Angle and all kinds of rubber type three-phase corresponding screw parts has a circular groove. Nail directly insert the pin in the circular groove, rubber in the role of the pin low lateral movement, movement and rotation motion. Due to these three movement forms of combination, can effectively destroy the rubber extrusion process of formation of the core. Whenever the core through the pin % E
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
Audited Supplier 
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