Copper scrap recycling is closely related to our daily lives. All kinds of electrical appliances in our homes contain copper metal, but we didn't pay much attention to it, so we ignored it.
Copper is a very close relationship between humans and non-ferrous metals. It not only has good electrical conductivity, thermal conductivity, corrosion resistance, and rich natural resources. It has been widely used in electricity, electronics, energy, petrochemical, machinery, metallurgy, Post-aluminum consumption is non-ferrous metal materials in China. Power transmission requires a large amount of highly conductive copper, which is mainly used for power lines, cables, bus bars, transformers, switches, connectors and couplings.
Since the 1980s, due to the large capacity of optical cables, copper cables have been continuously replaced on communication trunk lines and have been rapidly promoted and applied. However, a large amount of copper is still needed to convert electrical energy into light energy and enter the user's circuit. With the development of communication industry, people's demand for communication is increasing, and the demand for optical cables and copper wires will also continue to increase. The electrification of railways has a great demand for copper and copper alloys. Over 2 tons of abnormal copper wires are required for each kilometer of overhead wires. In order to increase its strength, a small amount of copper is often added. In addition, the motors, rectifiers, control, braking, electrical and signal systems on the train rely on copper and copper alloys. Generally speaking, the recycling and utilization of copper scrap is divided into two categories. One is new copper, which is mainly the industrial production and processing of copper scrap and copper smelting. The other is old copper, which has already flowed into the final consumer product of copper for recycling. Generally speaking, new types of recycled copper scrap account for more than half. In addition to recovering copper, it can be directly used for downstream processing. On the other hand, copper is smelted, and there is a certain amount of pollution in the smelting process. Firstly, the waste copper is regenerated and processed. After melting, the non-polluting copper or copper alloy is directly treated with the same composition, which seriously pollutes the copper refining process, and further removes impurities; the copper alloy waste is mixed and the melting composition is adjusted. The production wastewater of recycled copper enterprises is mainly cooling water and electrolytic waste liquid, which is recycled and basically does not need external discharge.
Copper plays an important role in human production and life, and will play a more important role in the future. The above information is provided by non-ferrous metal supplier.