Small Conical Twin Screw Barrel For Plastic Extrusion Machine Alloy Hardness HRC55-62

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Plastic extrusion conical twin screw barrel Alloy hardness HRC55-62

Material of screw:

raw Material	The finished product processing equirements
38CrMoAIA,SACM645,42CrMo	Nitriding treatment
42CrMo,AISI4140	Hard chrome coated layer
4Cr5MoSiV1,SKD-61,SKD-11	Spraying bimetal alloy layer and nitriding treatment
HPM38,SI36,SUS440,9Cr18MoV	High frequency quenching
GHII3	Nature hard after high temperature

Conical twin screw and barrel:

Specification:Min φ35/77;Max:φ92/188.

Raw material tempering hardness:HB≥280

Nitriding Surface hardness:HV≥900

Nitriding depth:0.6-0.8mm

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