Screw&barrel
Material
Metal material：38CrMoALA
Alloy powder：Ni+Co+Cr+W+Si+Fe+B+C
Chrome surface：Cr
主要产品规格
Extruder barrel screw specification: Ø15-Ø300
Length-diameter ratio: L/D=15-45
Injection molding machine melt tube (barrel) screw specifications: locking force 25-3200KN injection volume 30g-25000g
Opposite parallel double hole barrel double screw specifications: Ø15-Ø130
Length-diameter ratio: L/D=16-35
Conical twin hole barrel conical twin screw specification: Ø45/90-Ø92/188
技术指标
Material: 38CrMoALA
Tempered hardness: HB260-290
Nitriding hardness: 900-1000HV
Nitriding layer depth: 0.5-0.75mm
Chrome plating thickness: 0.5-0.10mm
Chrome plating hardness: HV>85°
Alloy layer depth: 1.2mm-2.0mm
Alloy layer hardness: HRC50-65
Brittleness of nitride:
Surface roughness: Ra0.4u
Straightness: 0.015mm