Casting method of oxygen-free copper rod

Abstract

The invention discloses a casting method of an oxygen-free copper rod. The casting method of the oxygen-free copper rod comprises the following steps of: 1) setting a temperature of equipment; 2) feeding a copper raw material; 3) adjusting the content of carbon monoxide; 4) reducing liquid copper; 5) oxygenating the liquid copper; 6) casting a blank by a crystallization wheel trough; and 7) rolling a copper casting blank. The casting method of the oxygen-free copper rod, provided by the invention, has the advantages that: the purity of the copper rod is not less than 99.99%, the yield is more than 1000 tons in one day, the resistivity of the copper rod at 20 DEG C is 0.016888 omegamm<2> / m, the elongation is 42% and the torsion revolution reaches 40; furthermore, the energy and the quantity are saved, and the surface of the copper rod is bright.

Description

technical field [0001] The invention relates to the field of casting, in particular to a casting method of an oxygen-free copper rod. Background technique [0002] As a metal material with excellent performance in all aspects, copper is widely used in various industrial sectors. When the content of other impurities in copper exceeds the standard, it will greatly affect the electrical conductivity and mechanical properties of copper. The metallurgical industry generally requires the purity of copper to be no less than 99.95%, but for the wire and cable industry, the purity of copper is generally required to be no less than 99.99%. Only when such an indicator is reached can the excellent electrical conductivity of wire and cable be guaranteed and their service life improved. , to create more economic and social benefits. [0003] At present, the continuous casting and rolling process is more common in the processing of copper rods. The production efficiency of the tradition...

AI Technical Summary

Problems solved by technology

The production efficiency of the traditional continuous casting and rolling production process is very low. The main reason is that the volume of the melting furnace, holding furnace and ladle in the traditional continuous casting and rolling production line is too small. According to statistics, the daily output is 200-300 tons, and The purity of copper cannot be continuously maintained at 99.99% and above, and the loss of electric energy, coal loss, and coolant loss are relatively large