Power cable production process, the copper conductor oxidation discoloration is a difficult problem, we all know that the cost of 80% of the cable in the copper, copper has always been more expensive metal, coupled with the cost of expensive processing and labor costs, once After the oxidation, the loss of cable companies can be imagined. The oxidation of copper in the processing industry, the situation is very common oxidation, often after drying a few hours after drying oxidation discoloration, a few days after the oxidation of slag, the face of oxidation of copper, many cable companies will worry about how to prevent copper Of the oxidation of the manufacturers have to solve the problem.

In the power cable production process to take a variety of effective protective measures, can reduce the power cable copper conductor oxidation discoloration degree. To take some appropriate measures to reduce or even avoid the oxidation of copper, such as: the use of high-quality electrolytic copper as raw materials, the use of appropriate copper rod processing technology, the use of antioxidant-containing drawing oil, continuous annealing process using antioxidants; Process copper wire surface passivation treatment; copper conductor storage, the appropriate package of air isolation; insulating material using peroxide crosslinking agent, so that the insulation has a higher electrode potential to keep the copper conductor in the restored state; try to shorten the copper Heating process and so on.

Specifically, to prevent the power cable copper oxidation of the main color change from the following aspects: First, the copper is processed into copper control.

At present, the electrolytic copper processing into copper rods are usually cited method and continuous casting and rolling method two methods. On the cited method is to add electrolytic copper frequency induction melting furnace, after induction heating to achieve the purpose of melting copper. Molten copper liquid through the two stoves between the small melting groove into the holding furnace for insulation, and then by the use of mold cooling device cooling control lead out of copper rod to achieve the production of copper rod, copper rod cooled to room temperature into the air In the final by the line to the copper rod into a circle for the next process to use. On the lead of the entire production process to achieve the whole process of production in the oxygen state to ensure that the purity of the product and oxygen-free, to avoid the copper rod oxidation, to produce oxygen-free copper rod. The use of the law on the production of copper rod, low resistivity, compact structure, good processing performance, smooth appearance, the surface rounded, no oxidation, no burr, no cracks, no skin and inclusions defects. Continuous casting and rolling method is to add electrolytic copper melting furnace, melting copper liquid through the two stoves between the small fissure into the holding furnace for insulation, and then through the continuous casting machine, traction machine, rolling machine, Machine, hair machine, rolling mill, rod device to produce copper rod. High temperature melting of copper in continuous casting, the surface of oxygen in contact with the air, will form copper oxide. Although after the continuous rolling to remove some of the outer oxide, but there are some oxide rolled into the copper rod. Continuous casting and rolling production process to use the antioxidant coolant, can reduce the copper rod surface oxidation discoloration.

The above is a brief introduction to the prevention of copper conductor oxidation of power cable quality, learn more about power cable content, please pay attention to kingsignal official website.