Heads of Screw Barrel for Injection Moulding Machine

  • Model NO.: Dia20mm-220mm
  • Nitrided Hardness: 900-1000hv
  • Bimetallic Layer Depth: 3mm
  • Nitrided Layer Depth: 0.5-0.8mm
  • Origin: Zhejiang of China
  • Linearity of Screw: 0.015mm
  • Brittleness: Less Than Grade 1
  • Warranty and Service: 1 Year
  • Trademark: Zhongyang
  • HS Code: 84779000
Heads of screw barrel for injection moulding machine

Specification:
Screw diameter: Φ 20mm-Φ 220mm

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.

Electrical Equipment Membrane Switch

Electrical Equipment Membrane Switch,Lcd Touch Switch,Membrane Switch With Flexible Cable,Plastic Touch Switch

ZDX (HK) LIMITED , https://www.zdxmembranekeyboards.com