Copper Rod Using the high purity copper cathode as materials with Cu content up to 99.996%: Melting stove and heat preservation stove is separated with temperature controlled at ±5 ℃. The content of oxygen is controlled at 250—300ppm and oxide film at 200—300 ?. The conductivity is greater than 101%. Copper rod twists forward and reverse for 10 times with test results of cracking control within 2mm. The online flaw detection is used to ensure the surface quality of copper rod and the content of copper powder less than 6mg.
