Screw extruder screw and barrel for plastic extrusion machinery
Key words: Plastic extruder screw and barrel, plastic extrusion machinery screw, screw barrel, screw cylinder, plastic extruder screw barrel, plastic screw barrel, screw barrel for plastic extruder, screw and barrel for plastic extrusion machine, screw barrel for plastic extrusion machinery, single screw barrel
Size: Screw diameter: ¦µ20-¦µ500mm
Maximum screw length: 10000mm
Barrel inner bore diameter: ¦µ500mm
Material: 38CrMoAlA
40CrMo
42CrMo
High quality alloy steel
Technology: Nitriding treatment,
Alloy coating spraying,
Heating treatment,
Screw fully hardening,
Depth of nitrition layer: 0.5-0.8mm
Nitriding treatment, surface hardness: HV≥ 900-1000
Fragility of nitrition: Less than grade 1
Surface roughness: Ra 0.4um
Streightness of screw: 0.015mm
Surface of hardness of nitrated Cr coating layer: ≥ 950HV
Hardness of Cr coating layer: HRC55-62
Thickness of alloy plating: 0.03-0.08mm
Depth of alloy layer: 2mm
Used for granulation, PP, PE, PA, PC, ABS, AS etc
We can manufacture various kinds of screw barrels according to the customer's requirement