Brief introduction: Conical Twin Screw&Barrel Basic parameters: Product category: corotating bon-screw & barrel, counter-rotating parallel twin-screw & barrel Surface processing technology: nitriding, alloy spraying, chrome plating, etc. Nitriding hardness HV: 860-980 Straightness: 0.05mm Surface finish Ra :Ra≤0.2 Scope of application: It is suitable for extrusion of PVC pipes, profiles and sheet foam products. It is suitable for extrusion of PE, PP bellows. Composition and process: Screw Screw is made of high-quality 38CrMoALA or 1.8550 forging material, with quenching and tempering to HV290-320, flight surface made with nickel alloy plasma welding, alloy thickness≥1.7mm, hardness: HRC58, nitriding by NITREX process after finishing machine, nitriding depth: 0.5-0.7mm, h…
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