Copper Plate Wear-Resistant Copper Plate Beryllium C1100 Copper Copper Sheet
The red copper mentioned here must be very pure and contain more than 99.95% copper. A small amount of impurities, especially phosphorus, arsenic and aluminum, will greatly reduce the conductivity of copper. Oxygen in copper (a small amount of oxygen is easily mixed in copper smelting) has a great impact on the conductivity. Copper used in the electrical industry must generally be oxygen free copper. In addition, impurities such as lead, antimony and bismuth can not combine the copper crystals, resulting in thermal embrittlement and affecting the processing of pure copper. This kind of pure copper with high purity is generally refined by electrolysis: Impure Copper (i.e., crude copper) is used as anode, pure copper is used as cathode, and copper sulfate solution is used as electrolyte. When the current passes through, the Impure Copper on the anode gradually melts, and the pure copper gradually precipitates on the cathode. Copper thus refined; The purity can reach 99.99%.