Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
  • Bare Copper Wire (Stranded Wire)
  • Bare Copper Wire (Stranded Wire)

Bare Copper Wire (Stranded Wire)

As the stranded copper wire manufacturer, we supplies the electrical round copper wire products, which are widely used in industries such as transposed conductors, ultra-high voltage cables, various types of wires and cables, various types of enameled wires, network wires, electronic wires and communication wires.

Bare Copper Wire (Stranded Wire) Certifications
  • ISO9001
  • ISO14001
  • OSHMS

Bare Copper Wire (Stranded Wire) Application Fields

  • Communication Field
    Communication Field
  • Photovoltaic Cable
    Photovoltaic Cable
  • Transformer Coil
    Transformer Coil

Bare Copper Wire (stranded wire) Performance Parameter


Product propertiesInternal Control Standards
±10turnsCopper spikesNone
CrackTotal less than 3cm
Peel offTotal less than 3cm
Copper powder(mg)≤5mg≤15mg

Turns until torsion(turns)

Without any bell-shapes or cracks

≥25
Oxygen content(ppm)200-250≤400
Number of flaws detected(L)≤1
(M)≤3
(S)≤30
Number of iron detected(L)0
(M)0
(S)0
Elongation(%)≥40≥40
Diameter8.0±0.2mm8.0±0.4mm
Resistance≤0.01704≤0.01707
Oxide layers﹤600
Appearance

Smooth surface, no burr, no impurities or other flaws

Smooth surface, no burr, no impurities or other flaws


Production condition

Blocks in the furnacenone
Cold coppernone

Stabilitu of copper water temperature

±5℃
Stability of ingot temperature±5℃
Casting conditionWithout significant fluctuations in the level
OthersNormal and Stable


Bare Copper Wire (Stranded Wire) Production Process

The conventional production process:

Bare Copper Wire (Stranded Wire) Production Process
  • 01
    Raw materials
  • 02
    Melting
  • 03
    Casting
  • 04
    Surface treatment
  • 05
    Rolling
  • 06
    Acid-free cleaning
  • 07
    Liquid wax spraying
  • 08
    Wire take-up
  • 09
    Finished product inspection
  • 10
    Compacting
  • 11
    Packaging
  • 12
    Storage

Bare Copper Wire (stranded wire) Executive Standard


GB/T3953-2009, GB/T4910-2009, GB/T12970-2009, GB/T3952-2016

Bare Copper Wire (Stranded Wire) Production Equipments

  • American Continuous Casting And Rolling Production Line
    American Continuous Casting And Rolling Production Line
  • Stranding Machine
    Stranding Machine
  • Germany Nihofer Drawing Line
    Germany Nihofer Drawing Line
  • Monofilament Equipment
    Monofilament Equipment
  • Big Drawing Machine
    Big Drawing Machine
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