The high strength, high temperature resistance, corrosion resistance and electrical and thermal conductivity of tungsten wire make it irreplaceable in scenarios that require high reliability and durability. The following is an introduction to its main applications:
1. Lighting Industry:
Tungsten wire is mainly used for the filament of incandescent bulbs. Due to its high melting point (about 3422°C) and high temperature resistance, it can emit light for a long time at high temperature without melting.
In some fluorescent lamps or halogen lamps, tungsten wire is used as a supporting structure or auxiliary heating element.
2. Electronics Industry:
Tungsten wire is used in vacuum tubes and cathode ray tubes as a cathode material or heating wire for emitting electrons.
In some electron microscopes or X-ray tubes, tungsten wire is used as an electron emission source.
3. Medical Equipment:
In X-ray equipment, tungsten wire is used as a cathode filament, which is heated to generate an electron flow to generate X-rays.
In equipment such as CT scanners, tungsten wire is also used for similar functions.
4. Industrial Heating:
Tungsten wire is used as a heating element in high-temperature furnaces (such as vacuum furnaces and sintering furnaces) because it can maintain stability and strength at extremely high temperatures.
In glass or ceramic production, tungsten wire can be used as a high-temperature heating element.
5. Photovoltaic Cutting:
Tungsten wire is widely used in the silicon wafer cutting process in the photovoltaic industry. Tungsten wire is used as a cutting wire to cut silicon ingots into thin silicon wafers for the manufacture of solar panels due to its high strength, wear resistance and small diameter. Its high temperature resistance and tensile strength ensure that it is not easy to break during the cutting process, suitable for high-precision and efficient production.
6. Scientific Research:
Tungsten wire is used in high-temperature experimental equipment in the laboratory, such as thermocouples or high-temperature test devices, because of its high temperature resistance and chemical stability.
7. Microelectronics and Thin Film Technology:
Tungsten wire is used in physical vapor deposition (PVD) equipment as an evaporation source for depositing thin film materials.
In microelectronics manufacturing, tungsten wire can be used to produce fine wires or structures.
8. Other Applications:
Tungsten wire is used as the filament of high-intensity light source in some special lamps (such as stage lighting or projector lamps).
It is used to manufacture small parts or support structures required in high temperature environments.
