bimetallic twin screw barrel

Bimetal conical twin barrel has got the nation patent(Patent number:ZL200520116731.9),and we are the only company in manufacturing the bimetal conical twin barrel.Adopting the technique of rotary casting alloy,its compactness and wearing resistance of alloy reaches the complete consistent with single-drill alloyed barrel,thus solving the defect of short service life and low wear-resisting of azotized conical twin barrel,and rewrite the history of only manufacturing single-hole alloyed barrel but no conical twin double-hole barrel in domestic land.

Wc-10 tungsten carbide alloy,with the characteristic of high hardness,high hard-wearing corrosion resistance,and high-temperature resistance,the hardness of alloy layer reaches HRC60-65,thus having the service life of two or three times longer than the azotized barrel.It is suitable for the PVC plus high-calcium powder,as well as the processing of engineering plastics.

The base material of spraying screw arris is 38CrMoALA."Ni-20"belongs to nickel base chromium-cobalt alloy,with the hardness of HRC58-62.The thickness of alloy surface on the screw arris is the standard value of 1.5-3.5mm,which is the alloy of alkaline resistance and corrosion resistance,with the high temperature and high speed spraying by the spraying equipment.It is mainly used in the processing of PVC,PC and high strength engineering plastics.

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