Casting method of oxygen-free copper rod

An oxygen-free copper rod and carbon monoxide technology, applied in temperature control, metal rolling, etc., can solve the problems of low production efficiency, copper purity cannot be continuously maintained at 99.99%, small volume, etc., and achieve the effect of bright surface

Inactive Publication Date: 2012-06-13
JIANGSU CHENLONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 prod

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, set the temperature of the melting furnace at 1120-1130°C, set the temperature of the holding furnace at 1125-1130°C, set the temperature of the ladle at 1105-1125°C, spray carbon in the groove of the crystallization wheel and on the steel strip; then put the electrolytic copper plate and Waste copper rods and waste cable copper conductors are put into the high-temperature melting furnace at an average rate of 1 ton per minute; the temperature of the melting furnace is controlled at about 1130°C, and all the raw materials to be added are melted into liquid; during this period, according to the CO analyzer, adjust the CO to control the oxygen content; since most impurities have a smaller specific gravity than copper and float on the surface of liquid copper, we can manually remove the impurities floating on the surface through the slag removal port, and the frequency of slag removal is once every 2 to 4 hours; Impurities whose specific gravity is greater than that ...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B21B1/46B21B37/74
Inventor 周俊民蒋加平赵明周晓安
Owner JIANGSU CHENLONG TECH
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