Basic Info.
Model NO.
ZYSCREW
Assembly Structure
Separate Type Extruder
Screw
Single-Screw
Engagement System
Full Intermeshing
Screw Channel Structure
Deep Screw
Exhaust
Don′t Exhaust
Automation
Automatic
Computerized
Computerized
Size
Customize
Material
Nitriding Steel
Nitrided Layer Depth
0.5-0.8mm
Nitrided Hardness
HRC56-58
Transport Package
Slushing Oil Coated& Film Wrapped in Wooden Case
Specification
ISO 9001: 2008 approved
Trademark
ZHONGYANG
Origin
China
HS Code
84779000
Production Capacity
150 Sets/ Month
Product Description
Specification:
Screw diameter: 15mm-300mm
Maximal length: 8000mm
Barrel inner diameter: 15-300mm
Maximal length: 4000mm
Different bimetallic alloys are available for different raw materials.
Base Materials:
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
(3)9Cr18MOV
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
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