38 Crmoala Screws And Barrels for Extruder Machine Manufacture

Base Material

1)38CrMoAlA(JIS   SACM645) 2)Cr12MOV(JIS SKD-11) 
  3)4Cr5MoSiV1(JIS SKD-61)  4)42CrMo(AISI 4140) 

Bimetallic Alloy Materials

1)Fe-based alloy  2)Ni-based alloy/Deloro alloy 
  3)Co-based alloy  4)NiCo-based alloy 
  5)Tungsten carbide/Wolfram carbide 

Surface   Treatment

Heat Treatment

High Frequency Treatment

Nitriding treatment(120 Hours)

Depth of Nitrided Layer: 0.5-0.8   mm

Hardness of Nitrided   Layer: 900-1020Hv (HRC56°-65°)

Hard Chrome Plating treatment:

Thickness of   Hard Chrome Plating Layer: 0.05-0.10mm

Hardness of   Hard Chrome Plating Layer: ≥950HV

Nickel alloy plating.treatment:

Bimetallic   Barrel/Cylinder: Centrifugal Casting (Inlay Alloy)

Bimetallic   Screw: Plasma Alloy Coating Spraying

Depth of Bimetallic Layer: >2mm

Hardness of Bimetallic Layer: HRC55°-72°

Technical data

Depth of   Nitrated Layer: 0.40-0.70mm

Hardness of   Nitration: 950-1050Hv

Fragility of   Nitration: ≤ 2grade

Hardness of   Bimetallic Layer: HRC55-62

Thickness of   bimetallic layer:2-3mm

Material   Application

1)General   Plastics

2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc

3)PA +   GF(Glass Fiber)

4)Flame-resistant   Reinforced Plastics

5)Modified   Engineering Plastics

6)All kinds of   Mixed Recycled Material(in Scrap or Granule),etc

General Terms

Means of transport: Ocean, Air, Express

Production time: About 25 days after we receive the deposit and lead   time will different according to the order quantity!

Our products   advantages

1)High productivity          2)Wonderful plasticizing

3) low energy consumption  4)Wearable and Durable

We can produce the screw barrel according to your requirements