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Bimetallic barrel for injeciton moulding machine
Our company has not only got the remarkable achievement on the production of normal bimetallic screw and barrel,also we have deeply researched on the barrel and screw for the special engineering plastic,for now much of engineering plastics add the calcium,kaolin,red clay, silica or add Glass fiber, carbon fiber, boron fiber and halogen free plastic to make the original plastic much better to adapt the specific plastic products.On the other hand, it may make the screw and barrel wear and corrosion quickly, In order to solve this problem,we have invented a kind of special alloy powder,whose ingredient contains 25%~50% Wc tungsten carbide.It makes the service life of screw and barrel much more longer than the other kinds of bimetallic screws and barrels.

 

material Grade A Wc-10 tungsten carbide alloy
Processing range Inner diameter : φ16mm-φ450mm ,effective length to 9000mm
Processing technic

Centrifugal casting,alloy layer reach 1.5mm-2mm one side,maximum reach 3mm-6mm one side
Alloy powder composition Wc(50%-60%),C,Si,Cr,B,Ni,Mo,Co,etc
The index of hardness HRC62-65,the service life of 5-6 times longer than the nitrided one
Characteristics of alloy powder High wearing resistance,high corrosion resistance and high temperature resistance
Apply to Nylon plus 30% - 50% glass fiber, bakelite, magnetic powder, ceramic powder, aluminum magnesium powder, iron powder, LCP and halogen-free flame retardant plastic

 

material

Grade B Ni-20 Ni-based alloy

Processing range

Inner diameter : φ16mm-φ450mm ,effective length to 9000mm

Processing technic

Centrifugal casting,alloy layer reach 1.5mm-2mm one side,maximum reach 3mm-6mm one side

Alloy powder composition

Ni,C,Si,Cr,B,Mo,Co,Wc(20%-25%),etc

The index of hardness

HRC60-63,the service life of 4-5 times longer than the nitrided one

Characteristics of alloy powder

High corrosion resistance,high wearing resistance and high temperature resistance

Apply to

PE, PC, PVC, LCP, acrylic, transparent plastic, halogen free flame retardant plastic, corrosion resistance of resin plastic, etc

 

material

Grade C Fe-30 Fe-based alloy

Processing range

Inner diameter : φ16mm-φ450mm ,effective length to 9000mm

Processing technic

Centrifugal casting,alloy layer reach 1.5mm-2mm one side,maximum reach 3mm-6mm one side

Alloy powder composition

Fe,C,Si,Cr,B,Mo,Ni, Co,etc

The index of hardness