Product name: the parallel twin-screws and barrel for extrude machine
Screw Diameter: Φ15mm-Φ350mm
Material: 38CrMoAlA; 9Crl8MoV; 42 CrMoV; high quality alloy steel
Technology: nitriding treatment,Sprey conating Bimetallic , heat-treatment
Appliance: PP, PE, PA, PVC, PC, ABS, AS etc
Technical specification:Material 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
Type of bimetallic parallel twin screw barrel:Φ40/2 Φ50/2 Φ65/2 Φ80/2 Φ90/2 Φ105/2 Φ125/2 Φ130/2 Φ150/2 Φ180/2 Φ200/2
bimetallic parallel twin screw barrel