Rubber Mould Machine Parts

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

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