Conical Twin Screw Barrel for Extruder

  • Model NO.: ZYB501
  • Plastic Processed: PVC
  • Automation: Automatic
  • Size: Customize
  • Nitrided Layer Depth: 0.5-0.8mm
  • Bimetallic Layer Depth: 3mm
  • Trademark: Zhongyang
  • Origin: China(Mainland)
  • Type: Pipe Extruder
  • Screw: Twin-Screw
  • Computerized: Computerized
  • Material: Nitriding Steel
  • Nitrided Hardness: HRC56-58
  • Bimetallic Layer Hardness: HRC58-62
  • Specification: ISO 9001: 2008
  • HS Code: 84779000
Conical twin screw barrel for Bimetallic Extruder: 

Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
The compression ratio of screws can be designed according to different products and ingredients

Technical Information: 

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: 900-1000HV
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.

Our advantages:
1). Excellent raw materials
2). Good customer service
3). Rapid delivery
4). Reasonable price
5). Production quickly

Focus on quality and service.
Experienced manufacturer, we will be the best choice.
Type Model Hardness
(HRC)		 Wear resistant Corrosion resistant Thickness Application
Glass Fiber
PTA weld J1 38CrMoAlA
Ni-base alloy		 45-58 Excellent Special excellent 1.5~3mm Under 10%
J2 SKD61
Ni-base alloy		 45-58 Special excellent Excellent 1.5~3mm Under 15%
Nitriding J3 Nitrided HV more than 800 Good Good 0.25mm /

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