Melting process for increasing conductivity of red copper
The invention provides a red copper melting process with increased conductivity. The red copper melting process comprises the following steps of: before melting, respectively brushing coating on all melting tools to prevent the pollution to a copper liquid in the melting process; taking charcoal subjected to high temperature carbonization as a covering material to isolate the contact between the copper liquid and the outside and prevent the oxidation and gas suction; adding a proper amount of phosphor copper for deoxidizing; adding a proper amount of pure magnesium for secondary deoxidization; adopting CaB6 for deoxidizing; and finally, adopting Li for final deoxidization. On one hand, the content of gas is reduced to be lower, the impurities are further removed and the conductivity is increased. The red copper melting process disclosed by the invention has the advantages of simpleness and convenience in operation, visuality, conciseness, improved production quality and favorable marketing value. 1. A kind of improving conductivity from the copper smelting process, characterized in that it comprises the following steps: A. copper raw material and the high-temperature carbonization ozokerites is put in the melting furnace has been already preheated ; B. the rise of the temperature of the melting furnace and heated to the 1180-1230 [...] , adding the weight of the copper 0.015%-0.04% put it in the cu-P of the bottom part of the copper pre-deaeration; To fully melt the copper of the c ., the weight of the copper adding 0.03%-0.07% pure mg put it in the molten copper on the bottom of the secondary deoxy ; D. adding the weight of the copper 0.005%-0.015% CaB6 of three deoxy ; E. adding the weight of the copper 0.00001%-0.0001% of final Li deoxydize ; F. monitoring the conductivity of the molten copper before tapping. 2. the copper smelting process improve electric conductivity according to Claim 1, characterized in that the phosphorus content cu-P 19%-20%. 3. Improving conductivity from the copper smelting process according to Claim 1, characterized in that the copper material used for casting ZCu99.9 pure copper.