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The history of copper

Copper is one of the metals known since ancient times. It is thought that the first metal known to man was gold, followed by copper. Copper is abundant source in nature and easy to produce. Copper was the first metal that man used for processing. In the beginning that people used copper, explored elemental copper that only existed in nature. The development of processing promoted the discovery of ways to obtain copper from copper mines. Copper containing minerals are more common, most of them have a bright and visible color, such as the golden color copper pyrites CuFeS2, bright green malachite CuCO3Cu(OH)2, dark blue stone 2CuCO3Cu(OH)2... These minerals are smelted to form CuO copper oxide,and then use carbon recovery, and then become metal copper. Things made of pure copper are too soft and easy to twist. It was found that by mixing tin with copper it could be made into an alloy copper of tin bronze. COPPER it from Cuprum, is the ancient name of the island of Cyprus. With the gold are the only two metals with colors other than gray and black. Copper with gold alloy, can be made into various precious accessories and appliances.

Participating zinc is brass, Bronze is made by adding tin. Chalcopyrite, chalcocite, cuprite and malachite are important copper deposits in nature. After calcination of sulfide minerals, it is fused with a few silicon dioxide and coke to make coarse copper, and then recovered into blister copper. Finally, copper can be obtained by electrolysis refining. Copper is a non-ferrous metal that is very close to human beings. It is widely used in the fields of electrical, light industry, mechanical

manufacturing, construction industry, national defense industry... It is second only to aluminum in the consumption of non-ferrous metal materials in China. Copper is the most widely used and consumed in the electrical and electronic industries, accounting for more than half of the total consumption. Used for all kinds of cables and wires, motors and transformers winding resistance, switches and printed circuit boards. Used in the manufacture of industrial valves and fittings, surfaces, plain bearings, moulds, heat exchangers and pumps... Widely used in the chemical industry in the manufacture of vacuum equipment, distillation pot, brewing pot. In the national defense industry for the production, artillery shells, gun parts...In the construction industry, used as a variety of pipes, pipe accessories, decoration equipment...
ZILLION COPPER professional at copper alloy, such as tin bronze, aluminum bronze, tin phosphor bronze, brass...

 

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