Basic View of 132mm Parallel Twin-cylinder Factory

Basic View of 132mm Parallel Twin-cylinder

Basic View of 132mm Parallel Twin-cylinder

Specification parameters:
Screw diameter:Φ45mm-Φ200mm
Draw ratio:16-35
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.

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Basic View of 132mm Parallel 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

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