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The suitable screw and barrel for injection molding machine

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The raw material of screw and barrel is 38CrMoAlA, nitriding treatment, with nitride layer thickness 0.5~0.8mm, hardness over 950HV.
According to different processed raw material, we recommend use different coating screw and barrel for much long lifetime.
PA66+Fiber glass                Bi-metal screw and barrel
PC + imflaming    Special designed screw and barrel
PC + transparency  Chromated screw and barrel

POM      Special designed screw and barrel

PA +GF 30% + Corundum   Full hardened screw and bimetal barrel
For color plates or plastic bend & extension test    Optimize screw L/D ratio for good plasticizing capacity, mix screw.

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