• Customize Rubber Screw Barrel Rubber Screws
  • Customize Rubber Screw Barrel Rubber Screws
  • Customize Rubber Screw Barrel Rubber Screws
  • Customize Rubber Screw Barrel Rubber Screws
  • Customize Rubber Screw Barrel Rubber Screws

Customize Rubber Screw Barrel Rubber Screws

After-sales Service: Yes
Warranty: 12 Months
Standard: GB
Material: Alloy
Application: Rubber Product Making Machinery
Certification: ISO
Customization:

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Basic Info.

Model NO.
ZYSCREW
Condition
New
Customized
Customized
Automatic Grade
Semiautomatic
Structure
Horizontal
Type
General Rubber Machinery
Type of General Rubber Machinery
Rubber Extruder
Type of Tire Machinery
Rubber Regeneration Machinery
Transport Package
Wooden Case
Specification
ISO9001: 2008
Trademark
Zhongyang
Origin
Zhoushan
HS Code
84779000
Production Capacity
1500 Sets/Month

Product Description

Customize Rubber Screw Barrel Rubber Screws

Rubber Screw barrel, rubber extrusion screw barrel, plastic machinery screw barrel, pins cylinder for rubber machinery

Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18

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

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

Experienced manufacture, we will be the best choice.
Type Model Hardness
(HRC)
Wear resistant Corrosion resistant Thickness Application
Glass Fiber
PTA weld ZB1 38CrMoAlA
Ni-base alloy
45-58 Excellent Special excellent 1.5~3mm Under 10%
ZB2 SKD61
Ni-base alloy
45-58 Special excellent Excellent 1.5~3mm Under 15%
Nitriding Nitrided HV more than 800 Good Good 0.25mm /
 
Types of Bimetallic Screw

 
For barrels, there are 4 kinds of bimetallic alloys against all types of wear:
Alloy Type EJS01 Alloy EJS02 Alloy EJS03 Alloy EJS04 Alloy
Wear resistance Very good Good Very good Excellent
Corrosion resistance Good Very good Very good Very good
Alloy components Fe+Ni+Cr+B Ni+Cr+Co+B Ni+Cr+Co+V+B Ni+Cr+Wc+Co+B
Hardness (HRC) 58~64 50~58 55~60 56~62
Temperature area (°C) less than 400 less 450 less than 450 less than 600
Coefficient thermal RT-250°C 11.0 x 10 -6    11.0 x 10 -6 11.5 x 10 -6 11 x 10 -6
Expansion (/°C) RT-400°C 11.4 x  10 -6 11.4 x  10 -6 12.4 x  10 -6 12 x  10 -6

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