twin conical screw barrel
Conical twin screw barrel specification is dia45/90~dia92/188
Screw structure and compression ratio can be designed according to different products and parts.
Technical parameterMaterial 38CrMoALA,9Cr18MoV Application PVC,ABS,TPO Hardness After Hardening &Tempering: HB240 -280 Nitrided Hardness: Hv850-1000 Nitrided Depth: 0.45-0.7mm Nitrided Brittleness: ≤Grade 2 Surface Roughness: Ra0.4 Screw straightness: 0.015mm Surface Chromate-plating's Hardness After Nitrided: ≥900Hv Chromate-plating Depth: 0.05-0.10mm Bimetallic-alloy Hardness: HRC56 -65 Alloy Depth: 0.8-2.0mm
twin conical screw barrel
twin conical screw