At present, a new type of cable core – bimetal wire is quietly opening the market, cable companies through the development of a variety of bimetal wire composite wire, the enterprise to a new stage of development. Bimetallic wire is mainly composed of copper-covered aluminum wire or copper-covered steel wire. With the development of wire and cable to light weight, high strength, high conductivity, anti-magnetic and corrosion resistance, bimetallic wire will replace steel core reinforced aluminum stranded wire to become the ideal product for overhead high-voltage cable.
Whether it is through repeated trials or from the laying experience at home and abroad, copper-covered aluminum wire and copper-covered steel wire and other bimetallic wires have unique advantages in performance.
First, it has good ductility and processability. Copper-covered aluminum wire and copper-covered steel wire can be drawn and annealed like pure copper wire, and can be further processed into copper-covered enameled wire and silver-plated, tin-plated copper-covered steel wire.
Second, it has unique compound properties. Copper-clad aluminum wire also has the composite characteristics of copper conductivity and aluminum density is small, and copper-clad steel wire will combine the conductivity of copper and the high strength of steel together, tin-plated copper-clad steel wire plays the solder and vulcanization resistance of tin, silver plated copper-clad steel wire improves the electrical conductivity, thermal conductivity, and enhances the corrosion resistance and oxidation resistance.
Third, it has obvious economic benefits. The density of copper-covered aluminum wire is only 36.5%-41.6% of pure copper wire, its length is the same weight, the same diameter of pure copper wire 1/2.45-1/2.65 times, the same weight, the same diameter of copper-covered steel wire tensile strength is 1.6-2 times higher than pure copper wire. Therefore, the use of wire length or strength to produce wire and cable 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 the weight of the cable, facilitate transportation and network construction, reduce the labor intensity of workers, and the production process of cladding welding does not pollute the environment. Therefore, copper-clad aluminum wire and copper-clad steel wire not only have broad market prospects, but also the application range is constantly expanding.
Bimetallic wire is a replacement product, a wide range of applications, mainly used in power, electronics, communications and other high-frequency signal transmission fields and aviation, aerospace, underwater vehicles, electronic components connector, computer, instrument coil connection line, motor, transformer winding, TV degaussing coil and deflection coil, special high conductivity stranded wire, RF shielding network and other fields.
Post time: Feb-28-2024