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Bimetallic Screw Barrels Manufacturers

Bimetallic Screw Barrel

 


   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 screw and barrel.

 

matenial Grade A Wc-10 tungsten carbide alloy Grade B Ni 20 Ni-based alloy Grade C Fe -30 Fe-based alloy
Processing range : Inner dia.: ∅16mm-∅450mm,effective length 9000mm Inner dia: ∅16nm-∅450nm.effective
length 9000mm
Inner dia. : ∅16mm-∅450m.effective
length 9000mm
Processing technique:

Centnifugal casting ,allay layer reach 1.5mm-2mm one side, maxmumreach 3mm-6mm one side

Centrifugal casting, alloy layer reach
15mm-2mm one side,maxinumreach
3mm-6mm one side
Centrifugal casting, alloy layer reach 1.5mm-2mm one side,maxinumreach 3mmn-6mm one side
Alloy powder composition Wc(50%-60%),C,Si,Cx,B,Ni,Mo,Co,etc N,C,Si,Cr, B,Mo,Co,Wc(20%-25%).etc Fe,C,Si,Cr, B,Mo,Ni, Co,etc
The index of hardness HRC62-65,the service life of5-6 times longer than the nitnide one HRC60-63.the service life of 4-5 times
longer than the nitnide one
HRC59-61the service life of3-5 times
longer than the nitnide one
Charactenistics of alloy
powder
High wearing resistance,high corrosion resistance and high temperature resistance High corrosion resistance,high wearing
resistance and high tenperature
resistance
Wearing and corosion resistance
Application Nylon plus 30% - 50% glass fiber; bakelite, mgnetic powder, ceranic powder. aluninum magnesiumpowder, iron powder, LCP and halogen- free flame retardant plastic PE, PC, PVC, LCP, acrylic, transparent
plastic, halogen fee flame retardant
plastic, corrosion resistance ofresin
plastic, etc
Nylon plus 10% -30% glass fber, PC plus
glass fber, PVC plus calciumpowder,
recycled plastics processing. etc

Bimetallic barrel for extrusion machine

maternial Grade A Wc-10 tungsten carbide alloy Grade C Fe-30 Fe-based alloy
Processing range Inner diameter : ∅ 16mm-∅450mm,effective length to 9000mm Inner diameter : ∅ 16mm-∅450mm effective length to 9000mm
Processing technic Centrifugal casting,alloy layer reach 1.5mm-2mmone side maximum reach 3mm-6mmone side Centrifugal casting, alloy layer reach 1.5mm-2mmone side,maximumreach 3mm-6mm one side
Alloy powder conposition Wc(50%-60%),C,Si,Cr, B,Ni,Mo.Co,etc Fe.C,Si,C,B,Mo,Ni, Co,etc
Index of hardness HRC62-65,the service life of5-6 times longer than the nitnided one HRC59-61,the service life of3-5 times longer than the nitnided one
Charactenistics of alloy High wearing resistance high corrosion resistance and high tenperature resistance Wearing and corosion resistance
Application PE pipes, PVC, PPR, wood and plastic, XPS estruded plate, wire and cable, blown filmmachine, recycled plastic, etc PE pipes, PVC, PPR wood and plastic XPS extrusion board, blown filmmachine, recycled plastic, etc