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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.
| Product properties | Internal Control Standards | ||
| ±10turns | Copper spikes | None | – |
| Crack | Total less than 3cm | – | |
| Peel off | Total 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 | |
| Diameter | 8.0±0.2mm | 8.0±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 furnace | none | – |
| Cold copper | none | – | |
Stabilitu of copper water temperature | ±5℃ | – | |
| Stability of ingot temperature | ±5℃ | – | |
| Casting condition | Without significant fluctuations in the level | – | |
| Others | Normal and Stable | – | |
The conventional production process:
GB/T3953-2009, GB/T4910-2009, GB/T12970-2009, GB/T3952-2016
Tel:
E-mail:
Address:
No.1 Chengxi West Road, Cicheng, Ningbo, China
Ms.Yu
Ms.Sun
