Waste household appliances contain a large number of copper materials, which mainly exist in all kinds of wires, condensing tubes, strips, electrical ideas, circuit boards and electronic components. Almost all kinds of copper materials are used in household appliances and electronics industry, among which wire, strip and electrolytic copper foil are most used. Therefore, when recovering copper from waste household appliances, the varieties and forms of copper containing wastes are relatively messy. It is often necessary to understand the length of relevant knowledge of copper before recovering and using copper in household appliances.

　　Copper wire is a variety of copper materials with large output and wide application. It is mainly used for wire and cable conductors, enamelled wires, tinned wires, etc.

　　The primary variety of copper alloy wire is brass wire (including general brass wire, brass flat wire, lead yellow copper wire, etc.), which is mainly used for screws, hardware, zippers, jewelry, bicycle banners, etc. The use of pipes is relatively concentrated, and they are mainly used in the production of air withering coil, condensate pipe and water supply and drainage pipe. The application of strip is very wide. It is mainly used for the production of transformer, radiator of car water tank, electronic copper strip and general brass strip.

　　The copper strips used in household appliances are mainly electronic copper strips and general brass strips. Electronic copper strip is a copper iron phosphorus alloy. It is mainly used for integrated circuit plug-ins. The domestic consumption of electronic Copper Tapes with grades of c19200 and c1940o has exceeded 10000 tons. General brass tape is mainly used for making electrical appliances, car instruments, various heat sinks, communication equipment, computer parts and decoration.

　　Electrolytic copper foil is mainly used to make printed circuit boards in the electronic industry, with high product requirements and great technical difficulty. Its development trend is thin and double-sided processing. With the rapid development of information industry, its consumption is increasing. The largest variety of bar is lead brass bar, which is mainly used for the production of various machinery, electrical appliances, hardware and other parts. The product has low requirements for copper grade and can be produced from waste copper.

　　With the increasing depletion of primary copper resources, the reuse of copper containing wastes has attracted the attention of countries all over the world. This is not only because of its high reuse value, but also because people pay more and more attention to the title of environmental protection, and then strengthen the reuse of waste copper.

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