At present, a new type of cable core-bimetallic wire is quietly opening the market, and cable companies have pushed the company to a new stage of development by developing a variety of bimetallic composite wires. The bimetallic wire is mainly composed of copper-clad aluminum wire or copper-clad steel wire. As wires and cables move towards the development stage of light weight, high strength, high conductivity, anti-magnetic, and corrosion resistance, bimetallic wires will replace steel core reinforced aluminum stranded wires. Ideal product for overhead high voltage cables.
Whether after repeated trials or laying experience at home and abroad, copper-clad aluminum wire and copper-clad steel wire and other bimetallic wires have unique advantages in performance.
One is that it has good ductility and workability. Copper-clad aluminum wire and copper-clad steel wire can be drawn and annealed like pure copper wire, and can be further processed into copper-clad enameled wire and silver-plated and tin-plated copper-clad steel wire.
The second is a unique compound performance. Copper-clad aluminum wire has both the electrical conductivity of copper and the composite characteristics of low density of aluminum, while copper-clad steel wire combines the electrical conductivity of copper with the high strength of steel. Tinned copper-clad steel wire has the potential of tin Solderability and resistance to sulfide, silver-plated copper-clad steel wire improves electrical and thermal conductivity, and enhances corrosion resistance and oxidation resistance.
The third is to have obvious economic benefits. The density of copper-clad aluminum wire is only 36.5%-41.6% of pure copper wire, and its length is 1/2.45-1/2.65 times that of pure copper wire of the same weight and same diameter. Copper-clad steel wire of same weight and same diameter The tensile strength is 1.6-2 times higher than pure copper wire. Therefore, using the length or strength of the wires to produce wires and cables will greatly reduce production costs.
Fourth, significant social and environmental benefits. Copper-clad aluminum wire and copper-clad steel wire can save a lot of scarce copper resources, reduce cable weight, facilitate transportation and network construction, reduce labor intensity of workers, and the production process of the coating welding method does not pollute the environment. Therefore, copper-clad aluminum wire and copper-clad steel wire not only have broad market prospects, but the scope of application is also expanding.
The bimetallic wire is a new generation product with a wide range of applications. It is mainly used in high-frequency signal transmission fields such as power, electronics, and communications, as well as aviation, aerospace, underwater vehicles, electronic component connectors, computers, instrumentation coil cables, and motors , Transformer winding, TV degaussing coil and deflection coil, special high-conductivity stranded wire, radio frequency shielding net and other fields.
