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Conical twin screw barrel

Screw straightness：0.015mm

Tempering hardness：HB260-290

Nitride hardness：HV800-1050

Material：quality 38CrMoAIA, quality duplex stainless steel, Quality power metallurgy material

Birthplace: Zhejiang Province, China (mainland)

Conical Twin Barrel Details

Tempering hardness：HB260-290

Nitridation hardness：HV800-1050

Nitration case depth：0.4-0.7mm

Nitridation brittleness ≤ grade 1

Surface roughness：Ra0.4

Screw straightness：0.015mm

Chromium coating hardness after nitridation：≥900HV

Chromium coating thickness：0.05-0.10mm

Dual alloy hardness：HRC56-65

Dual alloy hardness：0.8-2.0mm

Material and technology

Quality 38CrMoAIA

Quality duplex stainless steel

Quality power metallurgy material

Cold/hot spraying hard metal technology

Advanced nitriding technology

Corrosion resistance, wear-resisting dual alloy spraying technology