Material

 Alloy-Steel of High-quality

1)38CrMoAlA(JIS SACM645)

2)42CrMo(JIS SCM440)

3)9Cr18MoV

4)CW6Mo5Cr4V2

5)SkD61

6)SkD11

Technical  process

1. Heat treatment

1)nitriding treatment

2)High frequency quenching

3)Spray coating bimetallic-alloy

4)Vacuum quenching

2. Centrifugal casting

3. Alloy coating spraying

Specifications

1.Power of locknut:25KN~38000KN

2.Capacity of injection:30~30000g

3.Diameter: 20mm~220mm

4.Diameter of screw:20mm~220mm

5. Alloy layer thickness :2.5mm~3.5mm

6. Alloy hardness: HRC58~HRC70

7. Straight tolerance: 0.015mm/m 

Screw type

For good plasticizing effect,we have different design of screw barrel to meet customer's demand. Gradual type,mutant type,wave type,barrier type,double screen type, shunt type,separation type,exhaust type, pin type, mixed type, double-head type,three-head type,multi head type etc.

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