The main process of wire and cable

Wire and cable are made through three processes: drawing, twisting, and covering. The more complicated the model specifications, the higher the repeatability.
1. Pull
In metal pressure processing. Under the action of external force, the metal is forced to pass through the die (pressure wheel), the metal cross-sectional area is compressed, and the technical processing method to obtain the required cross-sectional area shape and size is called metal drawing.
Drawing process points: monofilament drawing and strand drawing.
2. Twisted
In order to improve the softness and overallity of the wire and cable, letting more than two single wires intertwine together in a prescribed direction is called twisting.
The stranding process is divided into: conductor stranding, cable formation, braiding, steel wire armoring and winding.
3. Cladding
According to the different performance requirements of wire and cable, special equipment is used to coat different materials on the outside of the conductor. Coating process:
A. Extrusion: rubber, plastic, lead, aluminum and other materials.
B. Longitudinal package: rubber, wrinkled aluminum strip material.
C. Wrapping: ribbon-shaped paper tape, mica tape, alkali-free glass fiber tape, non-woven fabric, plastic tape, etc., linear cotton yarn, silk and other fiber materials
D. Dip coating: insulating paint, asphalt, etc.