Conical Twin cylinder
Specification parameters:
35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 60/125, 65/120,
65/132, 68/143, 70/135,70/140, 75/150, 80/143, 80/156, 92/188,
The above are standard specifications. The product can be customized according to customers requirements.
The screws can be specially designed according to different products and recipes.
Conical Twin cylinder Details
Base material:
1)38CrMoAlA(JIS SACM645)
Material composition analysis：
C: 0.35～0.42 Si: 0.20～0.45 Mn: 0.30～0.60 S: ≤0.035 P: ≤0.035 Cr:1.35～1.65 Al: 0.70～1.10 Ni: ≤0.030 Cu:≤0.030 Mo:0.15～0.25
Treatment process:
Tempering, qualitative treatment
Nitriding process
Spraying alloy
Technical parameters:
Tempering hardness:HB260-290
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: 900-1000HV
Nitriding brittleness: <= level 1
Surface roughness: Ra 0.32
Screw straightness: 0.015mm
Alloy layer thickness:2-3mm
Alloy layer hardness:HRC58-65
