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…