Bimetalic Screw Barrel for Extruder
1. Material: 38CrMoAI A
Nitriding treatment, Surface hardness: HV≥900
Nitriding depth: 0.5-0.8mm
2. Material: Special stainless steel, Quenching treatment, hardness: HRC55-58, Suitable for the screw which used for Transparent plastic products and high corrosion plastic processing, prolong life of screw.
3. Material: Tungsten alloy. Surface spraying, improve abrasion performance of screw.