Product Name: Parallel twin screw and barrel
Barrel - Material: 38CrMoAlA high-quality alloy structural steel
Barrel - Quenched and Tempering Hardness: HB260-280
Barrel - Nitriding Hardness: HV950±50 degrees
Barrel - Nitride Layer Depth: 0.4-0.6mm
Barrel - Brittleness: ≤2 levels
Screw - Material: 38CrMoAlA high-quality alloy structural steel crown spray-welded nickel-based alloy powder
Screw - Alloy Thickness: ≥1.5mm
Screw - Hardness: HRC53-56
Scope of Application: PA/PET/PP/PE/XLPE/masterbatch,plastic that is not easily decomposed, blended, filled, glass fiber reinforced
Surface treatments: Including: quenching & tempering, nitriding, hard chrome-plated, bimetallic alloy coating, through hardened.
Specifications of Parallel twin screw barrel for plastic extruder machine:
For good plasticizing effect,we have different designs of screw and barrel for extruder machine to meet customer's demand.Our factory manufactures with high-quality material, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.