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Materials with high quality and chromium molybdenum aluminum (38 CrMOALA)
Surface hardness: HV 290
Nitriding hardness: HV950 ~ 1000
Nitriding depth: 0.45 ~ 0.7 mm
Nitriding brittle: more than level 1
The surface roughness: Ra0.4
Screw the straightness: 0.015 mm
After nitriding chromium plating surface hardness: 900 HV:
Chromium plating thickness: 0.05 ~ 0.10 mm
Double alloy hardness: 60-70
The product specification:
PX-62 ~ 200
Length-diameter ratio: L/D = 18 to 25
Screw compressed according to different raw materials and different than product design
The different to parallel double screw machining PVC tubing, the alien materials, board (sheet material), modification