White copper foil: a multifunctional alloy metal with high electrical resistivity

White copper foil, a widely used material in various fieldsAlloy materialsIt is highly favored due to its high resistivity and various excellent properties. This article will introduce the physical properties of white copper foil and its applications in different fields, demonstrating its important position in the development of modern technology.

Physical properties of white copper foil

1. High resistivity

White copper foil is an alloy metal with high electrical resistivity, commonly used as an impedance material. Its resistivity is 0.48 μ Ω· m, and it has a low temperature coefficient of resistivity, which enables it to be used stably in a wide temperature range. This characteristic makes white copper foil an ideal choice for precision resistors, sliding resistors, resistance strain gauges, and other fields.

2. Excellent processing and welding performance

　　White copper foilIt has good processing and welding performance, and can be prepared into foil of different specifications through processing techniques such as cold rolling and stretching. During use, white copper foil can also be regulated and improved through methods such as heat treatment to meet different needs.

Application areas of white copper foil

1. Applications in communication circuits

Due to its high resistivity and stable electrical properties, white copper foil is widely used in AC circuits. It can be used as a precision resistor, providing reliable resistance values and stable current output. Meanwhile, white copper foil can also be used for sliding resistors, providing precise current control and regulation functions for equipment.

2. Materials for thermocouples and thermocouple compensation wires

White copper foil is also used as a material for thermocouples and thermocouple compensation wires. Its high resistivity and good processing performance make it suitable for preparing precise thermocouples, providing accurate and reliable data for temperature measurement.

3. Strong corrosion resistance

White copper foil has excellent corrosion resistance and can adapt to extremely harsh working environments. This makes it widely used in fields such as chemical, marine, aerospace, etc. As a corrosion-resistant material, white copper foil not only protects equipment from corrosion, but also extends its service life.

Conclusion:White copper foilIt is an alloy metal with high electrical resistivity, and its excellent physical properties and multifunctionality make it widely used in various fields. Whether it is precision resistors in AC circuits, thermocouple and thermocouple compensation wire materials, or working environments that require corrosion resistance, white copper foil can play an excellent role. In the future, we can expect white copper foil to play a more important role in technological development.