Descripción
Base Material
1) 38CrMoAlA (JIS SACM645)
2) Cr12MOV (JIS SKD – 11)
3) 4Cr5MoSiV1 (JIS SKD – 61)
4) 42CrMo (AISI 4140)
? Solution List
1) Plan A (HRC 56-58, 8-12 months)
38CrMoAlA + thermo refining+nitride 96 hours+ Fine polishing
2) Plan B (HRC 58-62, 12-18 months)
42CrMo/38CrMoALA + thermo refining+Hvof spraying+ Nitriding 96 hours+Fine polishing
3) Plan C (HRC 62-65, 24 months)
SKD61+Queching+ Harden inside process+Nitriding 96 hours+Fine polishing
? Available Dimension of Screw Barrel
Screw Diameter : Φ35/35 –Φ92/188
For all the machine : Cincinnati, Battenfeld, Krussmaffei, Bausano, Amut, etc.
Mechanical Properties
1) Nitrided layer depth : 0.5 – 0.8mm
2) Bimetallic layer depth : 0.8 – 3mm
3) Surface Hardness : HRC 58 – 65
4) Surface Roughness : Ra0.4
5) Chromed layer depth : 0.05 – 0.10mm
6) Chromed Hardness : ≥HV 950
7) Screw Straightness : 0.015mm
Degree of Abrasiveness Low Moderate High
Screw Nitrided Bimetallic spraying Tungsten coated
Barrel Nitrided Bimetallic Bimetallic
?