Nitriding Screw and Barrel for PVC/ PP/ PS Extruder Screw Barrel

Model NO.: Extruder screw cylinder Plastic Processed: PE Automation: Automatic Size: Customize Nitrided Layer Depth: 0.5-0.8mm Trademark: Zhongyang Origin: China(Mainland) Zhejiang Type: Sheet Extruder Screw: Single-Screw Computerized: Computerized Material: Nitriding Steel Nitrided Hardness: HRC56-58 Specification: ISO 9001: 2008 approved HS Code: 84779000 Single Screw Barrel, Extrusion Screw Barrel, PE film extrusion Screw Barrel, Plastic Machinery screw cylinder
Specification:
Screw Diameter: Ø 15- Ø 300
L/D ratio: 15-46

Product classification:
Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc.

Base Materials:
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
(3)4Cr5MoSi V1 (JIS SKD-61)
(4)9Cr18MOV
(5)HPT

Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide

Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy Welding
Bimetallic alloy centrifugal casting

Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 950-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Warranty and service: 1 year
Focus on quality and service.

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Product Categories : Extruder Single Screw And Barrel