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19-01-2019
Railway The electrification of railways requires a large amount of copper and copper alloys. More than 2 tons of profiled copper wire are required for overhead conductors per kilometer. In order to increase its strength, a small amount of copper (about 1%) or silver (about of%) is often added. In addition, the motors, rectifiers, and control, braking, electrical, and signal sys...
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12-01-2019
car Automobiles use 10 to 2 I kilograms of copper per car, depending on the type and size of the car. For cars, they account for about 6 to 9% of their own weight. Copper and copper alloys are mainly used in radiators, brake system piping, hydraulics, gears, bearings, brake linings, power distribution and power systems, gaskets, and various fittings, fittings, and trims. Among ...
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05-01-2019
Ship Due to good seawater corrosion resistance, many copper alloys such as aluminum bronze, manganese bronze, aluminum brass, gunmetal (tin-zinc bronze), white steel and nickel-copper alloy (monel) have become the standard materials for shipbuilding. Generally, copper and copper alloys account for 2 to 3% of the weight of warships and merchant ships. The propellers of warships ...
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29-12-2018
Lead frame In order to protect the normal operation of an integrated circuit or a hybrid circuit, it needs to be packaged; and when packaged, a large number of connectors in the circuit are led out of the sealed body. These leads require a certain amount of strength to form the support skeleton of the integrated package circuit, called the lead frame. In actual production, for ...
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22-12-2018
Integrated circuit The core of microelectronics technology is integrated circuits. An integrated circuit refers to a micro-miniature circuit in which a semiconductor crystal material is used as a substrate (chip), and components and interconnects constituting the circuit are integrated on a substrate, a surface or a substrate by a special process technology. Such microcircuits ...
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14-12-2018
Printed circuit The copper printed circuit uses a copper foil as a surface and is attached to a plastic plate as a support; the circuit wiring pattern is printed on the copper plate by means of photography; the excess portion is removed by etching to leave a circuit connected to each other. Then, the connection between the printed circuit board and the external portion is punch...
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08-12-2018
Electric vacuum device Electrovacuum devices are mainly high-frequency and ultra-high frequency emission tubes, waveguides, magnetrons, etc., which require high-purity oxygen-free copper and dispersion-enhanced oxygen-free copper. www.feihongalloys.com
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30-11-2018
Residential electrical line With the improvement of the living standards of our people and the rapid spread of household appliances, the residential electricity load has grown rapidly. As shown in Figure 6.6, in 1987, the electricity consumption of residents was 26.96 billion kWh (1 degree = 1 kW? hours), and in 1996, the number of households soared to 113.1 billion kWh in 1998...
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24-11-2018
Communication Cable Since the 1980s, due to the advantages of large current-carrying capacity of fiber-optic cables, copper cables have been continuously replaced in communication trunks, and applications have been rapidly promoted. However, the conversion of electrical energy into light energy and the input of the user's line still requires the use of large amounts of copper. ...
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