High-performance oxygen-free copper rod and manufacturing method thereof
The invention discloses a high-performance oxygen-free copper rod and a manufacturing method thereof. The high-performance oxygen-free copper rod comprises the following steps that by weight percent, 0.2%-0.3% of Cr, 0.07-0.09% of Te, 0.07%-0.09% of La, 0.2%-0.4% of Ag and the balance Cu are weighed...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a high-performance oxygen-free copper rod and a manufacturing method thereof. The high-performance oxygen-free copper rod comprises the following steps that by weight percent, 0.2%-0.3% of Cr, 0.07-0.09% of Te, 0.07%-0.09% of La, 0.2%-0.4% of Ag and the balance Cu are weighed; the raw materials are sent into a smelting furnace to be melted, the surface of a copper solution is covered with a charcoal layer, and in the melting process, the temperature of a smelting electric arc furnace is maintained at 1130-1170 DEG C; a hollow crystallizer directly stretches into the copper solution and is cooled through a water spacer bush, the copper solution is condensed into solid in the hollow crystallizer, and the upper end of the solid is drawn through a drawing machine to be manufactured into a rod blank; and multiple passes of drawing is conducted below the recrystallization temperature of the rod blank, intermediate annealing is conducted between the multiple passes of drawing, and the oxygen- |
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