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Screw Barrel for Injection

产品介绍:

Mechanical Properties

Base Material

1) 38CrMoAlA (JIS SACM645)

2) Cr12MOV (JIS SKD – 11)

3) 4Cr5MoSiV1 (JIS SKD – 61)

4) 42CrMo (AISI 4140)

Solution List

Plan A (HRC 56-58, 8-12 months)

38CrMoAlA + thermo refining+nitride 96 hours+ Fine polishing

Plan B (HRC 58-62, 12-18 months)

42CrMo/38CrMoALA + thermo refining+Hvof spraying+ Nitriding 96 hours+Fine polishing

Plan C (HRC 62-65, 24 months)

SKD61+Queching+ Harden inside process+Nitriding
96hours+Fine polishing

Nitrided layer depth

0.5 – 0.8mm

Bimetallic layer depth

0.8 – 3mm

Surface Hardness

HRC 58 – 65

Surface Roughness

Ra0.4

Chromed layer depth

0.05 – 0.10mm

Chromed Hardness

≥HV 950

Screw Straightness

0.015mm

Length of screw

150mm – 6000mm

Surface treatment

Bimetallic spraying & Centrifugal casting

Abrasiveness

 

Low

Moderate

High

Screw

Nitrided

Bimetallic spraying

Tungsten coated

Barrel

Nitrided

Bimetallic

Bimetallic


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