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Main technology of wire and cable
Wires and cables are made by three processes: stretching, twisting and coating. The more complex the specification, the higher the repeatability.

1. Stretching In metal pressure processing, the metal is forced to pass through the die (press wheel) under the action of external force, and the cross-sectional area of the metal is compressed to obtain the required cross-sectional area and size. This technical processing method is called metal drawing. The drawing process is divided into monofilament drawing and stranded drawing.

2. Stranding In order to improve the flexibility and integrity of wires and cables, more than two single strands are intertwined in the specified direction, which is called stranding. The twisting process is divided into conductor twisting, cabling, weaving, steel wire armoring and winding.

3. Cladding According to the different performance requirements of wires and cables, special equipment is used to cover different materials outside the conductor.