Welding: There will inevitably be joints in the continuous production process of conductors, and the joints need to be welded. At present, the most widely used and simple method is cold welding, which welds the two ends of the single wire to ensure the required conductor length. After the conductor is welded, if the joint is not polished well, the solder joint will protrude, and the wire cannot be pulled through the extrusion die core; It is tight, and it is also prone to threading during the extrusion process.

Tooling die: If the wire harness die used in conductor production is not uniform, or the wire harness die is worn, it will inevitably cause the outer diameter of the stranded conductor to be non-uniform. The conductor naturally cannot pass through the die core of the extruder, which also causes the wire.