Bimetallic Conical Twin Screw Barrel for Pipe Fitting

Product Flow
Blanking ---->Rough Machining ----> Quenching & Tempering ----> Semi Finishing Machining ----> Finish Machining --->Nitriding or Bimetallic Processed --->Detecting Finished Product --->Packing & Shipping 1.ProductShow
Conical twinscrewbarrel.
Screw name : Bimetallic conical twin Screw Barrel for pipe fittingbase Material1)38CrMoAlA 2)Cr12MOV3)4Cr5MoSiV1 4)42CrMoBimetallic 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

Double-alloy level

Level A - containing Tungsten of 40%

Level B - containing tungsten of 25%

Level C - containing tungsten of 9.5%

Heat Treatment

High Frequency Treatment

Nitriding treatment(120 Hours)

Hard Chrome Plating treatment

Bimetallic alloy coating

Vacuum quenching

Basic information

Depth of Nitrided Layer: 0.5-0.8 mm

Hardness of Nitrided Layer: 950-1020Hv

Thickness of Hard Chrome Plating Layer: 0.03-0.08mm

Hardness of Hard Chrome Plating Layer: ≥950HV

Bimetallic Barrel/Cylinder: Centrifugal Casting

Depth of Bimetallic Layer: 2-3mm

Hardness of Bimetallic Layer: HRC58°-62°

Roughness of the surface:Ra0.4um

Linearity of the screw: 0.015mm

Fragility of Nitration:less than one class

Hardness after Hardening & Tempering: HB260-290

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

Our products advantages

1)High productivity

2)Wonderful plasticizing

3) low energy consumption

4)Wearable and Durable

5)Fast and On time delivery

6)Best customer service