alloy machine screw

Super alloy machine screw /bimetallic extruder screw barrel

Diameter

Φ15mm-Φ350mm

Designing

Screw structure and compression

ratio can be designed according 

to different products  &different mixtrues.

 Standard Specifications

45/90, 51/105, 55/110, 65/132, 80/156, 80/172, 92/188

Advantages

1.Advanced Nitriding Technology
2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy

3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses different alloy and welding methods for the screw of different functions.

Materials

38CrMoAlA 

(JIS SACM645)

SKD61

Application

 pp.pe.pvc pipe and profile

Nitride Case Depth

0.5mm-0.8mm

Technology

1)Longer time Gas Nitriding treatment 

2)special anti-wear & abrasion alloy (bimetallic)

3)tungsten carbide

4)cobalt base alloy

5)stainless steel 

6)Gh113 nickel based alloy  

Nitride Hardness

980-1080HV

Packing

Wrapped up by film in wooden

Nitride Brittleness

≤Grade One

Payment Term

T/T , L/C ,Western Union

Surface Roughness

Ra0.4um

Delivery Term

15-30 working days

Screw Straightness

0.015mm

Port Departure

Shanghai/Ningbo

Alloy Hardness

HRC65-75

Min. Order

1 set

Alloy Depth

1.5mm-3.5mm

Common Nitrided:2.5-4years

Bimetallic: much longer lifetime.

Guarantee